Sunfire Stereo Amplifier TGA 5400 User Manual

Theater Grand  
Amplifier  
TGA-5400 / TGA-5400(E)  
and TGA-5200 / TGA-5200(E)  
five  
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SAFETY  
16. To prevent electric shock, do not 17. Grounding or Polarization —  
ATTENTION — Le présent appar-  
eil numérique n'émet pas de bruits  
radioélectriques dépassant las limites  
applicables aux appareils numériques  
de class A/de class B (selon le cas)  
prescrites dans le règlement sur le  
brouillage radioélectrique édicté par  
les ministere des communications du  
Canada.  
use this polarized plug with an exten-  
sion cord, receptacle or other outlet  
unless the blades can be fully inserted  
to prevent blade exposure.  
Pour préevenir les chocs électriques  
ne pas utiliser cette che polariseé  
avec un prolongateur, un prise de  
courant ou une autre sortie de cou-  
rant, sauf si les lames peuvent être  
insérées à fond sans laisser aucune  
parIIIe à découvert.  
Precautions should be taken so that  
the grounding or polarization means  
of the Component is not defeated.  
This apparatus does not exceed the  
Class A/Class B (whichever is ap-  
plicable) limits for radio noise emissions  
from digital apparatus as set out in the  
radio interference regulations of the Ca-  
nadian Department of Communications.  
WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,  
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.  
CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE  
OF PLUG TO WIDE SLOT, FULLY INSERT.  
ATTENTION: POUR ÉVITER LES CHOCS ÉLECTRIQUES, INTRO-  
DUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE  
CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU’AU FOND.  
Contents  
Please read the Safety Instructions  
Safety Instructions................................... 2-3  
carefully before connecting and  
using your Sunre Amplier.  
Chapter 1: Introduction ...............................4  
Theater Grand Editions ..............................5  
Unpacking and Installation .........................6  
Front Panel Features..................................7  
Rear Panel Features ..................................8  
Chapter 1 is a general introduction  
to the features, details and installa-  
tion of your amplier.  
Chapter 2 shows some typical con-  
nections to a preamplier and  
speakers.  
Chapter 2: System Congurations...........10  
The Appendix shows some addition-  
al information, including a trouble-  
shooting guide, the Warranty, and  
service assistance details.  
Appendix:  
Series and Parallel ...................................15  
Troubleshooting Guide .............................16  
Specications ...........................................18  
Limited Warranty ......................................19  
Service Assistance ...................................19  
To nd out more about this and other  
Sunre products, please visit our  
website: www.sunre.com  
3
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CHAPTER 1  
Introduction  
Bob Carver, Amplier Designer, Physicist  
Dear Friend,  
Thank you for purchasing a Sunre Theater Grand Amplier. We hope you enjoy it and the music it  
makes as much as we have enjoyed creating it for you.  
The TGA-5400 can produce 400 watts rms per channel into 8 ohms and 800 watts rms into 4  
ohms.  
The TGA-5200 can produce 200 watts rms per channel into 8 ohms, and 400 watts rms into 4  
ohms.  
The big breakthrough is the uncanny tracking downconverter, which uses 18 Herculean Mosfets  
in the TGA-5400 and the TGA-5200. This allows the amplier to produce phenominal power output,  
without the heat generated by conventional designs.  
The circuit boards are heavy glass epoxy, double sided, with a Faraday shield on the back side. All  
resistors in the signal path are 1% tolerance, metal-lm. Critical capacitors are lm devices with high  
dielectric strength and ultra low absorption characteristics. An enormous power source built around a  
massive power transformer provides the ultimate muscle for limitless dynamics.  
We could go on and on, but here’s the best part: we’ve included two kinds of outputs on the front  
left and front right channels:  
(1) a standard voltage-source (i.e., near zero impedance) output for all typical applications and:  
(2) a higher-impedance current-source output, which many prefer for electrostatic, planar  
magnetic, or ribbon speakers. Or you can biwire your system with the voltage source driving  
the woofer(s) and the current source driving the upper part of the system. In many cases this  
provides by far the best possible interface between the amplier and the speaker system.  
Whichever way you decide to hook up the amplier, it will create a multilayered soundstage that is  
deep, wide, three-dimensional, and utterly believable. The optional current-source output can coax  
forth a sensuous, delicately detailed musical voice long associated with low-powered classic tube  
ampliers. (The current-source characteristic of vacuum tubes is the dominant factor in the sound-  
stage delivery of classic tube ampliers).  
4
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CHAPTER 1  
Theater Grand Editions  
The Theater Grand ve channel  
power amplier is available in two  
editions:  
TGA-5400 and TGA-5400(E)  
400 Watts per channel into 8  
800 Watts per channel into 4 Ω  
TGA-5400  
TGA-5200  
The TGA-5400 has twice the power  
output than the TGA-5200.  
This manual uses illustrations of the  
TGA-5400. The operational details,  
features, and connections to loud-  
speakers and preampliers are the  
same for both models.  
The TGA-5400(E) and TGA-  
5200(E) are export models, set for  
220-240 VAC operation. Their opera-  
tion is identical to the TGA-5400 and  
TGA-5200 ampliers.  
TGA-5200 and TGA-5200(E)  
200 Watts per channel into 8 Ω  
400 Watts per channel into 4 Ω  
5
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CHAPTER 1  
Unpacking  
Installation  
Your Sunre Amplier should reach  
you in perfect condition. If you do  
notice any shipping damage, please  
contact your Sunre Dealer immedi-  
ately.  
Read and follow all safety instruc-  
tions shown on pages 2 and 3.  
Make sure that the power  
cords of all your components  
are attached to the same outlet  
or at least to the same circuit.  
This will reduce the possibility  
of a ground loop in the system.  
Observe the following precautions  
when choosing a location for your  
Theater Grand Amplier:  
Gently lift out the unit and remove  
all the packing material and acces-  
sories. It is important to save all the  
packing materials and the box in case  
your amplier ever needs to be moved  
or shipped for repair.  
Protect it from prolonged  
exposure to direct sunlight and  
other direct sources of heat,  
such as heating vents and  
radiators.  
Make sure that the total cur-  
rent draw does not exceed  
the current rating of your AC  
outlet or power strip.  
Use the XLR inputs if your  
preamplier has XLR outputs.  
These balanced connections  
provide superior noise rejec-  
tion.  
Do not expose the unit to rain  
or moisture. If uid or a foreign  
object should enter the unit,  
immediately unplug the power  
cord and contact your Sunre  
Dealer.  
Make sure that you keep your sales  
receipt. It is the only way to establish  
the duration of your Limited Warranty  
and it may come in useful for insur-  
ance purposes.  
Whenever possible, keep the  
power cords away from the  
signal cables or speaker wires  
to prevent any hum or audio  
interference being heard in the  
speakers.  
Please take a moment to ll out and  
mail the Sunre Customer Response  
card. Also read the serial number  
located on the rear panel or the under-  
side of the chassis and record it here:  
Avoid excessive exposure to  
extreme cold or dust.  
Do not place heavy objects on  
top of the unit.  
Choose reliable hookup cables,  
also called patch cords or RCA  
cables. They should be fully  
shielded and as short as pos-  
sible for the job.  
Allow adequate ventilation  
around the amplier; do not  
cover the ventilation slots.  
Serial #:  
___________________________  
Purchased at:  
AC Power Considerations  
Ensure that the unit is plugged into  
an outlet capable of supplying the cor-  
rect voltage specied for your model.  
The outlet should be capable of sup-  
plying 15 amps for the 120 V model,  
8 amps for the 230 V model.  
Some patch cords can be a  
very tight t and there is usu-  
ally a preferred method of get-  
ting them off. Some have to be  
removed with a twisting action.  
Be gentle or you may damage  
the jacks of the amplier or  
your other components.  
___________________________  
___________________________  
___________________________  
___________________________  
Date: _______________________  
Care  
If you need to clean the front sur-  
face, rst turn off the power and then  
use a dry soft cloth, rubbing with the  
grain. Be careful not to scratch the  
display window.  
Some special patch cords  
can only be hooked up in one  
direction, these are usually  
marked with arrows.  
It is usual for the right patch  
cord plugs to be red and the  
left connections to be white,  
grey or black. Video connec-  
tions are usually yellow.  
Connection Tips  
Before setting up your new system,  
please consider the following :  
Always make sure that  
your components are all  
unplugged before making or  
changing connections.  
6
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CHAPTER 1  
Front Panel Features  
Overview  
Power Switch  
Your Theater Grand Amplier has  
ve channels of power amplica-  
tion combined in one chassis for the  
Press the power switch to turn the  
amplier on. With this switch pressed  
in, the “Standby/On” LED will turn  
purpose of reproducing music or video red when the amplier is in standby,  
soundtracks. It accepts line level  
signals from a controlling preamplier  
and amplies them to a higher level,  
suitable for driving powerful stereo  
and Home Theater speakers.  
or blue when the amplier is on. The  
rear panel switch controls how the  
amplier turns on (signal sensing, 12V  
trigger, etc.). Please refer to page 8  
for more details.  
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CHAPTER 1  
Rear Panel Features  
1 2  
3 4  
5
6
6
5
6
MINIMUM SPEAKER LOAD IMPEDANCE 4 OHMS  
7
6
6 7  
8 9  
The voltage range for the trigger  
input is from 5 to 18 VDC. The input  
impedance is approximately 600 Ω  
(20 mA @ 12V).  
1. AUTO/ON/OFF Switch  
Your Theater Grand Amplier is  
designed with an automatic on/off  
circuit.  
2. 12 VDC Trigger Input  
Although the AUTO-ON signal  
sensing turn-on is adequate for most  
installations, the 12 VDC trigger inputs  
are offered as an optional way to turn  
on the amplier.  
3. RCA Inputs  
In the AUTO-ON position, the  
amplier will automatically turn  
on if an audio signal is pres-  
ent at any of the inputs, or  
Your Theater Grand Amplier has  
three sets of inputs for each of the ve  
channels. Two are unbalanced RCA  
inputs and one is a balanced XLR  
type.  
The Sunre Theater Grand II, III, IV  
and TGP-5 Processors have a com-  
patible 12 VDC trigger output (see  
page 11). This can be used to auto-  
matically turn on the amplier when  
the processor is turned on.  
if it receives a 12 VDC input  
voltage at the trigger inputs.  
The amplier will go to standby  
after a few seconds if the trig-  
ger voltage is removed, or after  
approximately 30 minutes in  
the absence of an audio signal.  
The two RCA inputs for each chan-  
nel are joined together internally, and  
either one can be connected to the  
corresponding output of your pream-  
plier.  
1/8" mono mini jacks are provided  
for ease of installation, along with a  
terminal strip to allow more exibility  
for custom-wired installations. The  
terminal strip and both mini jacks are  
In the ON position, the ampli-  
er is always on, regardless of  
The second RCA input can be used  
as a daisy-chaining output, sending  
the preamplier output signal to an-  
other channel or to another amplier.  
input signals or 12 VDC trigger. internally connected in parallel, allow-  
ing 'daisy chaining' to turn on multiple  
In the OFF position, the ampli-  
ampliers.  
er is in standby, regardless of  
input signals or 12 VDC trigger.  
Any 1/8" miniplug mono or stereo  
interconnect cable will sufce to con-  
nect the trigger output of the Theater  
Grand Processor to the amplier.  
See page 7 for details of the  
front panel LED status.  
Do not exceed 18 VDC on  
this input. (CAUTION: Do  
not connect AC line voltage  
to this input!)  
8
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CHAPTER 1  
NOTE: The Current Source output  
is a Voltage Source modied to yield  
an impedance of one ohm. This cor-  
responds approximately to a vacuum  
tube amplier's output impedance and  
constitutes the dominant factor in the  
soundstage delivery of classic vacuum  
tube power ampliers.  
4. XLR Inputs  
5. Current Source Outputs  
and:  
6. Voltage Source Outputs  
The front left and front right chan-  
nels each have a Voltage Source  
output and a Current Source output.  
The surround channels have Voltage  
Source outputs only.  
If your preamplier has XLR  
outputs, connect them to these XLR  
inputs. These balanced connections  
offer superior noise rejection com-  
pared to the unbalanced RCA inputs,  
particularly for long cable runs.  
The female XLR inputs are wired  
as follows:  
7. Current Source Fuses  
Each Current Source output has an  
in-line fuse to protect your speakers.  
If one ever opens, there will be no  
output to that speaker.  
The Voltage Source outputs have  
a source impedance of approximately  
zero ohms. The Current Source  
outputs have a source impedance of  
approximately one ohm.  
Pin 1 is ground  
Pin 2 is positive (hot)  
Pin 3 is negative (cold)  
Unplug the amplier from  
the AC mains power supply  
if you ever have to change  
a fuse.  
Balanced connections pass the  
input signal along two conductors. If  
there is any external noise and inter-  
ference passing into the audio lines,  
both conductors will receive the same  
amount of noise. This noise is then  
rejected in the balanced input stage of  
the Theater Grand Amplier.  
The top post of each binding post  
pair is the positive output, and con-  
nects to the positive (red) post of your  
speaker. The bottom post of each pair  
is the negative, and connects to the  
negative (black) post of your speaker.  
The posts can accept bare wire,  
spade terminals, and dual or single  
banana connectors.  
8. IEC connector  
The amplier comes with a detach-  
able Linecord which attaches here.  
Make sure it is rmly pushed in place.  
Connect the other end to an AC outlet  
which is properly congured for the  
type of plug and has the correct volt-  
age for your model.  
+
-
+
-
9. AC Line fuse  
If this fuse fails, replace it with the  
exact same type and current rating.  
Bare Wire  
Spade  
Note: Always unplug the  
power cord from your AC  
outlet before removing the  
fuse.  
+ -  
Dual-Banana  
Banana  
+ -  
With a at ended screwdriver, push  
the fuse carrier in slightly and turn it  
counter-clockwise to release.  
According to your musical taste,  
you may select the Current Source for  
driving electrostatic, planar magnetic  
or ribbon speakers. Select the Volt-  
age Source for driving subwoofers.  
For cone based systems, use either.  
For a biwired system, use the Current  
Source for midrange and treble driv-  
ers, and use the Voltage Source for  
the subwoofer(s). These are sugges-  
tions only. By all means, please feel  
free to experiment with other wiring  
options. (See page 14.)  
9
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CHAPTER 2  
System Congurations  
The following pages show some typical connections that you might make in your installation. They show how the inputs  
and outputs of the Theater Grand Amplier are connected to your preamplier and speakers.  
Unbalanced Connections  
UNBALANCED  
PREAMP OUTPUTS  
RS  
LS  
RF  
LF  
C
Line-level audio signals  
From: Preamplier main RCA outputs  
To:  
Amplier line-level inputs  
MINIMUM SPEA  
KER LO  
AD IMPED  
ANCE  
4
OHMS  
+
+
+
+
+
R
RS  
Speaker-level audio outputs  
From: Amplier outputs  
To: Speaker input posts  
C
LS  
L
LOUDSPEAKERS  
Make sure that the posi-  
tive speaker wires do not  
touch the negative speaker  
R
C
L
= Right Channel  
= Center Channel  
= Left Channel  
If your preamplier has RCA out-  
puts, it can be connected to the ampli-  
er inputs as shown. The amplier will  
boost the preamplier's output, up to a  
level suitable for driving speakers.  
wires, or any chassis metal.  
RS = Right Surround Channel  
LS = Left Surround Channel  
This will cause a short circuit and may  
damage your amplier or speakers.  
This diagram also shows how the  
Voltage Source outputs connect to  
the input posts of your speakers. (The  
Current Source can be used instead,  
as shown on the next page).  
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CHAPTER 2  
Balanced Connections  
If your preamplier has XLR outputs, it can be connected to the XLR inputs as shown. This example shows the connec-  
tions to the Sunre Theater Grand Processor TGP-5. This also shows the Current Source output connections to the front  
left and right speaker inputs. (The Voltage Source outputs can be used instead, as shown on the previous page.)  
Sunre Theater Grand Processor TGP-5  
MA  
NUFACTURED  
FROM DOLBY LABO  
"DOLBY", "PRO-LO  
DOUBLE-D SYMBOL  
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RATORIES.  
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LABORATORIES.  
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MANUFACTURED UNDER  
SYSTEMS, INC. US PAT. NOLI  
5,978,762 AND OTHER WORLD-W  
PENDING. "DTS",  
"NEO:6" ARE TRA  
SYSTEMS, INC. COPYRIGHT 1996, 20  
SYSTEMS, INC. ALL RIGHTS RESERVED.  
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12 VDC Trigger signal  
From: Preamplier trigger  
outputs  
To:  
Amplier trigger  
inputs  
LS  
L
RS  
R
C
MINIMUM SPEAKER LO  
AD IMPED  
ANCE  
4
OHMS  
Balanced line-level audio signals  
From: Preamplier XLR outputs  
To:  
Amplier XLR inputs  
+
R
+
RS  
+
C
Speaker-level audio outputs  
From: Amplier outputs  
+
LS  
+
L
To:  
Speaker input posts  
LOUDSPEAKERS  
The 12 VDC trigger connection  
shown can be used to turn the ampli-  
er on when the preamplier turns on.  
Alternatively, you could use the ampli-  
er's AUTO-ON switch. The amplier  
will then automatically turn on when a  
preamp audio signal is received.  
11  
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CHAPTER 2  
Biamping  
If your speakers can be biamped,  
the Theater Grand Amplier can be  
congured to provide a very powerful  
system.  
The following connections are  
shown in the diagram on the top half  
of the next page.  
Output connections  
Connect the amplier’s right  
rear output to the right speak-  
er’s woofer input terminals.  
Connect the amplier’s right  
front current source output to  
the right speaker’s upper range  
input terminals. If you prefer,  
you could use the right front  
voltage source instead.  
Inputs  
Tweeter  
Connect the amplier’s left  
rear output to the left speaker’s  
woofer input terminals.  
Connect the amplier’s left  
front current source output to  
the left speaker’s upper range  
input terminals. If you prefer,  
you could use the left front  
voltage source instead.  
Woofer  
A speaker which can be biamped or  
biwired will have two sets of binding  
posts. Sometimes these posts are  
joined with bridge clips for normal  
operation.  
Input connections  
Each amplier channel has two  
RCA inputs which are connected  
together internally.  
Make sure that any bridge  
clips are removed when  
biamping or biwiring the  
speakers. If not, this may  
cause damage to the  
amplier.  
Connect the preamp stereo  
output to the front channel  
RCA jacks. Then install short  
interconnects from the other  
unused front RCA jacks across  
to the rear channel RCA jacks.  
In this way, the front and rear  
amplier channels are fed with  
the same signal from your  
preamp.  
Each speaker can be driven by two  
amplier channels; one to drive the  
woofer and one for the upper range.  
You will need to use four amplier  
channels to biamp two speakers.  
If you use the Theater Grand Ampli-  
er for biamping, then a total of three  
speakers can be connected. You will  
need an extra two channel amplier if  
you want to run the surround speak-  
ers in a 7.1 channel Home Theater  
system.  
Note: you cannot use XLR  
cables in, with RCA out, or  
RCA in with XLR out. There is  
no direct internal connection  
between the RCA and XLR  
inputs.  
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CHAPTER 2  
Biamping Connections  
UNBALANCED  
PREAMP OUTPUTS  
L
R
Note: The remaining channel can  
be used to drive another speaker, or  
left unconnected. These connections  
have been omitted from this drawing  
and the one below for clarity. They  
can be connected as shown on pages  
10 and 11.  
Line-level audio signals  
From: Preamplier main RCA outputs  
To:  
Amplier RCA inputs  
MIN  
IM  
UM  
SPEAKE  
R
LO  
AD  
IMP  
EDA  
NC  
E
4
OHM  
S
Line-level audio signals  
From: Amplier Front L/R RCA  
To:  
Amplier Rear L/R RCA inputs  
Speaker-level audio outputs  
From: Amplier outputs  
+ -  
TWEETER  
(CURRENT  
SOURCE)  
+ -  
RIGHT  
To:  
Speaker input posts  
+ -  
LEFT  
OOFER  
RIGHT  
+ -  
LEFT  
TWEETER  
(CURRENT  
W
OOFER  
W
LOUDSP  
EAKERS  
SOURCE)  
UNBALAN  
Biamping with an external  
crossover  
CED  
PREAMP  
OUTPUTS  
R
L
If you have an external active  
crossover, you can greatly increase  
the efciency of your system. The  
crossover will split the preamplier  
output signals into two frequency  
ranges.  
FULL FREQ  
RANGE  
A
CTIVE EXTERNAL C  
R
O
SSO  
VER  
INPUT  
LO  
W OUT  
HIGH OUT  
R
L
You can connect the crossover's  
low frequency outputs to the ampli-  
er's rear channel inputs, and the  
crossover's higher frequency outputs  
to the amplier's front channel inputs.  
R
L
R
L
LO  
W FREQ  
RANGE  
HIGH FREQ  
RANGE  
This is an efcient system because  
the channels only amplify signals with-  
in the frequency range of the speaker  
element they are driving. Little power  
is wasted.  
MINIMUM  
SPEAKE  
R
LO  
AD IMPE  
DA  
NCE  
4
OHM  
S
Make sure that the crossover point  
of your active crossover is adjusted  
to match the crossover point of your  
speakers. Consult your speaker and  
crossover owner's manuals.  
+ -  
TWEETER  
(CURRENT  
SOURCE)  
+ -  
RIGHT  
+ -  
RIGHT  
+ -  
TWEETER  
(CURRENT  
SOURCE)  
LEFT  
W
OOFER  
LEFT  
W
OOFER  
LOUDSPEAKERS  
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CHAPTER 2  
Biwiring Connections  
If your speakers can be biwired or  
biamped, they will have completely  
separate input terminals for the woofer  
section and the upper range. See the  
speaker diagram and discussion on  
page 12.  
UNBALANCED  
PREAMP OUTPUTS  
L
R
Make sure that any links be-  
tween the woofer and upper  
range posts are removed  
from the speakers when  
Line-level audio signals  
From: Preamplier main RCA outputs  
To: Amplier line-level inputs  
you want to biamp or biwire them.  
Consult your speaker owner’s  
manual for details.  
The front channels of the Theater  
Grand Amplier each have two pairs  
of outputs which can be used to biwire  
your speakers. The idea is to use the  
voltage source to drive the woofer,  
and the current source to drive the  
upper range. This will offer improved  
performance and still allow you to  
connect ve speakers for your Home  
Theater system.  
MINIMUM  
SPEAKE  
R
LO  
AD IMPE  
DA  
N
CE  
4
OHMS  
Speaker-level audio outputs  
From: Amplier outputs  
To:  
Speaker input posts  
This page shows the input and out-  
put connections for Biwiring a left front  
speaker and a right front speaker.  
The remaining speaker connections  
have been omitted from this drawing  
for clarity. They can be connected as  
shown on pages 10 and 11.  
+ -  
TWEETER  
(CURRENT  
SOURCE)  
+ -  
RIGHT  
RIGHT  
+ -  
TWEETER  
(CURRENT  
SOURCE)  
W
+ -  
OOFER  
T
A
LEFT  
(V  
OL  
LEFT  
GE  
SOURCE)  
Output connections  
W
OOFER  
(V  
OL  
T
A
GE  
SOURCE)  
Connect the amplier’s right  
front voltage source output  
to the right speaker’s woofer  
input terminals. Connect the  
amplier’s right front current  
source output to the right  
speaker’s upper range input  
terminals.  
LOUDSPEAKERS  
Input connections  
Connect your preamplier’s outputs  
to the corresponding input jacks on  
the Theater Grand Amplier.  
Connect the amplier’s left  
front voltage source output to  
the left speaker’s woofer input  
terminals. Connect the ampli-  
er’s left front current source  
output to the left speaker’s  
upper range input terminals.  
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APPENDIX  
Series and Parallel speaker connections  
The connection of more than one  
speaker per channel will tend to  
degrade the speaker’s frequency  
response, and may make the amplier  
Parallel  
For example, if you want to parallel-  
connect two speakers to the front right  
Ideally, the total average  
impedance should be no less  
than 4 ohms per channel.  
channel of the amplier:  
run hot. For the best results use one  
speaker per channel.  
You must make sure that the  
lower impedance does not  
cause the amplier to over-  
heat, shut down, blow the line  
fuse, or pop your circuit break-  
er. If this happens, you should  
reduce the number of speakers  
wired in parallel, rewire them in  
series, or use more than one  
power amplier.  
If you do want to connect more than  
one speaker per channel, there are  
two main ways: Series or Parallel.  
Amplifier  
Outputs  
Series  
For example, if you want to  
series-connect two speakers to the  
front right channel of the amplier:  
The positive output terminal of  
the right channel connects to  
the positive input post of the  
rst speaker and to the positive  
post of the second speaker.  
Amplifier  
Outputs  
The negative output terminal  
of the right channel connects  
to the negative input post of  
the rst speaker and to the  
negative post of the second  
speaker.  
The positive output terminal of  
the right channel connects to  
the positive input post of the  
rst speaker.  
The total impedance of equal  
speakers in parallel is found  
by dividing the impedance of  
one speaker by the number of  
speakers. For example, two  
eight ohm speakers in parallel  
is a four ohm load (eight ohms  
divided by two), four eight ohm  
speakers in parallel is a two  
ohm load (eight ohms divided  
by four).  
The negative input post of the  
rst speaker connects to the  
positive input post of the sec-  
ond speaker.  
The negative input post of the  
second speaker connects to  
the negative output terminal of  
the right channel.  
The total impedance of speak-  
ers in series is found by adding  
their impedances together. For  
example, two four ohm speak-  
ers in series is an eight ohm  
load.  
Parallel connections are harder  
on the amplier than series  
connections, as the total im-  
pedance is lower compared to  
driving a single speaker, and  
the amplier must produce  
more current to drive them.  
Series connections are easier  
on the amplier than parallel  
connections as the total imped-  
ance is higher than driving a  
single speaker.  
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APPENDIX  
Troubleshooting Guide  
The Sunre Amplier is expertly  
designed and built to provide years of  
trouble-free performance. Most prob-  
lems that occur can usually be solved  
by checking your setup or making  
sure that the audio and video com-  
ponents connected to your processor  
are on and fully operational.  
Try to have all of your equipment  
on the same electrical outlet or  
circuit. Group all the low power  
components (preamp, CD player,  
DVD etc.) on a single outlet or  
power strip. This is provided that  
the overall current draw from your  
equipment does not exceed the  
rating of the outlet or breaker.  
The amplier shuts down  
often or the line fuse blows  
often  
Check that the positive and nega-  
tive speaker wires are not shorted  
together.  
Make sure that no speakers are  
shorted internally. If you have an  
ohm-meter, disconnect the speaker  
wires and measure the resistance  
between the speaker’s positive  
and negative terminals. If the read-  
ing is less than 2 ohms, the speak-  
ers may have an internal short.  
Measure all speakers and check  
their impedance specications.  
The following information will help  
you deal with common setup problems  
you may experience during normal  
use of your unit. If the problems still  
persist, please contact your Sunre  
Dealer for assistance.  
Disconnect all cables which come  
from outside the room, and check  
if the hum goes away. This in-  
cludes such connections as cable  
TV, satellite TV, or roof top an-  
tennas. Make sure that they are  
disconnected where they rst enter  
the room, so they are making no  
connection to the preamplier or  
the TV, or any other component. If  
the hum is caused by the cable TV  
line, then you will need a “ground  
loop isolator.” This is an inexpen-  
sive device tted in line with the  
coaxial cable feed. Contact your  
cable company or your Sunre  
Dealer for assistance.  
No sound from one or  
more speakers  
Speaker cables may have come  
undone. Turn off your system and  
check the cables, and tighten the  
amplier and speaker binding  
posts.  
If you have connected speakers  
in Parallel, the overall impedance  
may be too low. It is recommended  
that you rearrange the speakers  
in Series to increase the overall  
impedance, thus taking some of  
the load off the amplier.  
Broken audio cable.  
The preamplier volume level is  
low for the channels concerned.  
Recheck the preamplier calibra-  
tion procedure.  
Make sure that the amplier  
has good ventilation and is not  
overheating. If the amplier is in  
a closed rack, open up the rear  
panel or use a quiet fan for im-  
proved ventilation.  
Disconnect all connections from  
the preamplier to your TV, VCR or  
DVD.  
A preamplier Mute switch may be  
on, or an external processor loop  
or a tape monitor loop is engaged.  
As a test, disconnect any other  
component which has a grounded  
power cord.  
A hum is heard in your  
speakers  
This problem is more than likely  
caused by a “ground loop” in your sys-  
tem, rather than a fault in the amplier.  
Follow these steps to isolate the main  
cause of the hum; there may even be  
more than one.  
Check that your preamplier or  
source is running the correct sur-  
round sound mode. Maybe it is set  
for stereo when you were expect-  
ing 5.1 surround sound.  
NOTE: Never remove the  
ground pin from any power  
cords. This is very dan-  
gerous.  
If the hum persists, disconnect all  
the source components one at a  
time from the back of the preampli-  
er, until you identify the problem.  
Check in case any missing chan-  
nels have been turned off in a  
preamplier setup menu. For  
example, the center amplier  
channel will not receive a signal  
if the preamplier has been set to  
"Phantom."  
If your preamplier has XLR bal-  
anced outputs, use them because  
they offer greater immunity to  
noise elds.  
Ground loop isolators are available  
for audio lines and video. You can  
ask your Sunre Dealer for assis-  
tance.  
The Auto/on/off switch might be in  
the off position.  
Remember to unplug all compo-  
nents in your system, including  
the amplier, before disconnecting  
or connecting any cables during  
troubleshooting.  
Try moving the speaker cables  
away from any power cords. Try  
just one speaker, connecting it to  
each amplier channel and see if  
one channel is bad.  
One of the fuses for the current  
source outputs may have blown.  
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APPENDIX  
Check that the interconnect cables  
to the amplier do not have any  
broken connections.  
Poor bass performance  
Make sure that your preamp does  
not have the bass level turned  
down.  
Other causes of noise  
Many surround preampliers have  
controls which can direct all the  
bass to subwoofers, or let your  
main speakers play the full range.  
Make sure that the preamplier  
has been correctly set. If you are  
not using a subwoofer, set the  
speaker options to “LARGE,” and  
the subwoofer to "OFF."  
Speaker noise may also be caused  
by interference or noise on your  
AC line. Make sure there are no  
large appliances sharing the line,  
or halogen lamps or lamps with  
dimmer controls.  
Try connecting your system to an-  
other AC socket on a separate line.  
Keep power cords away from au-  
dio cables.  
Check that the speaker wires have  
been connected correctly: Make  
sure that the positive of each  
Do not place the preamplier di-  
rectly on top of the amplier.  
speaker connects to a positive out-  
put of the amplier, and the neg-  
ative of each speaker connects to  
a negative output. If one speaker is  
wired incorrectly, than it will be “out  
of phase” with the others, resulting  
in poor bass performance.  
If the hum is heard from within  
the amplier and not through the  
speakers, this may also be caused  
by interference on the AC or DC  
lines. The power transformer  
may turn this interference into an  
audible noise. Internal hum can be  
made worse by a shelf or cabinet  
resonating, so try moving the am-  
plier to another shelf.  
If you have connected the amplier  
using the XLR inputs, make sure  
that the XLR cables are wired cor-  
rectly. If one has the hot and cold  
reversed, then this will also cause  
a speaker to be out of phase.  
Try moving your preamplier  
further away from your amplier.  
Sensitive preamp circuits may pick  
up hum from the amplier trans-  
former’s magnetic eld.  
Turn-on and turn-off  
thumps  
Plug the amplier into an  
unswitched AC outlet, and use the  
AUTO-ON feature. This will allow  
the amplier to turn on and off  
silently.  
Try moving your components further  
away from the TV, especially if  
you ever notice the screen has  
changed color in the area closest  
to the component.  
Current source outputs not  
working  
If you have very high efciency  
speakers, these may show up  
noise which other speakers may  
not.  
If you are biamping or biwiring,  
make sure that the current source  
fuses have not blown.  
If you are still having a problem,  
remember that Sunre’s dealers  
and technical support staff will as-  
sist you. Make a list of the things  
you have tried.  
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APPENDIX  
Specications  
Input sensitivity for rated  
output  
12 VDC Trigger Inputs  
Input voltage range 5 -18 VDC  
TGA-5400  
Impedance: approx 600 Ω  
Unbalanced: 1.3 Vrms  
(20 mA @ 12 V)  
Balanced:  
0.65 Vrms  
Power output  
Removable terminal block, and  
dual 1/8" minijacks for daisy-chain-  
ing.  
400 watts continuous, per chan-  
nel, into eight ohms, at 1 kHz  
with no more than 0.5% T.H.D.  
XLR Input impedance  
10 k, each leg balanced to  
ground  
Power Consumption  
Power at clipping, min  
Female XLR  
45 W  
At idle  
800 watts per channel into four  
ohms.  
Pin 1 is ground  
Pin 2 is positive (hot)  
Pin 3 is negative (cold)  
400 W  
1800 W  
Typical (1/8th power)  
Absolute Max (Fuse  
Limit)  
Hum and Noise  
Damping Factor:  
-118 dB, A-Weighted  
Dimensions and Weight  
150  
Maximum output current  
17.0 inches wide  
5.9 inches high (including feet)  
16.7 inches deep (to tips of con-  
nectors)  
12 VDC Trigger Inputs  
120 amps peak to peak per ch.  
Input voltage range 5 -18 VDC  
Maximum output voltage  
Impedance: approx 600 Ω  
Weight 38 lbs  
56.6 Vrms  
(20 mA @ 12 V)  
Finish  
Removable terminal block, and  
dual 1/8" minijacks for daisy-chain-  
ing.  
Output impedance Front  
Left and Right channels  
Brushed aluminum with black an-  
odize or a light titanium nish.  
Voltage source: Approx. zero ohms  
Current source: Approx. one ohm  
Power Consumption  
TGA-5200  
45W  
At idle  
RCA Input impedance:  
200W  
1800W  
Typical (1/8th power)  
Absolute Max (Fuse  
Limit)  
Power output  
24 kΩ  
200 watts continuous, per chan-  
nel, into eight ohms, at 1 kHz  
with no more than 0.5% T.H.D.  
Input sensitivity for rated  
output  
Dimensions and Weight  
17.0 inches wide  
Unbalanced: 1.9 Vrms  
Power at clipping, min:  
5.9 inches high (including feet)  
16.7 inches deep (to tips of con-  
nectors)  
Balanced:  
0.95 Vrms  
400 watts per channel into four  
ohms.  
XLR Input impedance:  
Weight 32 lbs  
Hum and Noise  
10 k, each leg balanced to  
ground  
-115 dB, A-Weighted  
Finish  
Female XLR  
Brushed aluminum with black an-  
odize or a light titanium nish.  
Maximum output current  
Pin 1 is ground  
Pin 2 is positive (hot)  
Pin 3 is negative (cold)  
80 amperes peak to peak per  
channel  
Maximum output voltage  
Damping Factor:  
40 Vrms  
150  
© 2006 Sunre Corporation.  
All rights reserved. Sunre Corpora-  
tion reserves the right to improve  
its products at any time. Therefore,  
specications are subject to change  
without notice.  
Output impedance Front  
Left and Right channels  
Voltage source: Approx. zero ohms  
Current source: Approx. one ohm  
RCA Input impedance  
Manual part # : 913-133-00 Rev A  
24 kΩ  
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APPENDIX  
Limited Warranty  
Service Assistance  
Sunre Corporation is proud of its  
products which have been built with  
care using advanced technology and  
premium component parts. Your unit  
has been crafted to perform properly  
for many years. Sunre Corporation  
offers the following Warranty to you,  
the owner of a new Sunre product:  
Sunre Corporation’s liability is  
limited to the repair or replacement,  
at our option, of any defective prod-  
uct and shall not in any event include  
property or any other incidental or  
consequential damages which may  
result from the failure of this product.  
We suggest that you read the  
Limited Warranty completely to fully  
understand your Warranty/Service  
coverage.  
If your Sunre Corporation product  
ever requires service, write to us or  
call:  
Some states do not allow limitations  
on how long an implied warranty lasts  
and/or do not allow the exclusion or  
limitation of incidental or consequential  
damages, so the above limitations or  
exclusions may not apply to you.  
Sunre Corporation  
Technical Services Department  
P.O. Box 1589  
Snohomish, WA 98291  
Tel (425) 335-4748  
Fax (425) 335-4746  
The Sunre Corporation Warranty  
for the Theater Grand Amplier is in  
effect for FIVE years from the date of  
original retail purchase. The Sunre  
Corporation Warranty covers defects  
in materials and workmanship. The  
following, however, are excluded:  
This Warranty gives you specic  
legal rights, and you may also have  
other rights which vary from state to  
state. We suggest that you attach your  
purchase receipt to this Warranty and  
keep these in a safe place. Thank you  
for your choice of a Sunre Corpo-  
ration product.  
You will be directed to an autho-  
rized Sunre Corporation Service  
Station or receive instructions to ship  
the unit to the factory. Please save the  
original shipping carton and packing  
materials in case shipping is required.  
Please do not ship Parcel Post.  
a) Damage caused during ship-  
ment.  
b) Damage caused by accident,  
misuse, abuse of operation  
contrary to the instructions  
specied in the Sunre Corpo-  
ration user’s manual.  
NOTE: Before sending in your unit for  
repair, you must call Sunre for return  
authorization.  
c) Units where the serial number  
has been defaced, modied or  
removed.  
Include a complete description of  
the problem, indicating how you have  
it connected, the associated equip-  
ment in your system and a copy of  
your purchase receipt. Initial shipping  
costs are not paid by Sunre Corpora-  
tion; return ground shipping costs will  
be prepaid if repairs were covered by  
the scope of this Warranty.  
d) Damage resulting from modi-  
cation or attempted repair by  
any person not authorized in  
writing by Sunre Corporation.  
e) Units purchased from unau-  
thorized dealers.  
The Sunre Corporation War-  
ranty extends to the original owner  
or subsequent owner(s) during the  
ve year warranty period, so long as  
the original dated purchase receipt is  
presented whenever warranty service  
is required.  
All implied warranties, including  
warranties or merchantability and  
tness for particular purposes, are lim-  
ited in duration to the ve year length  
of this Warranty, unless otherwise  
provided by state law.  
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MINIMUM SPE  
AKE  
R
LO  
AD IMPED  
ANCE  
4
OHMS  
Theater Grand  
Amplifier  
TGA-5400 / TGA-5400(E)  
and TGA-5200 / TGA-5200(E)  
five  
Manual part number : 913-133-00 Rev A  
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