Soundstream Technologies X3.71 User Manual

X3.60 / X3.71  
TABLE OF CONTENTS  
INTRODUCTION  
2
3 ~ 4  
FEATURES & SPECIFICATIONS  
CONTROLS & FUNCTIONS  
5 ~ 10  
PLANNING & MOUNTING YOUR SYSTEM  
WIRING DIAGRAM  
11  
12  
13  
14  
15  
BRIDGING TWO AMPLIFIERS  
ADJUSTING & TUNING  
TROUBLE SHOOTING  
INTRODUCTION  
Ampliꢀer's provide high-performance sound reinforcement for your  
mobile audio equipment. TheMulti-Mode bridging capabilities allow  
ꢁexibility in hosting severaldiꢂerent speaker conꢀgurations.  
To achieve optimum performance, it is highly recommended that you read  
this Owners Manual before beginning installation.  
2
FEATURES  
X3.60  
4000Watts  
Max Power  
350<@80Hz(+/- 5Hz)  
15Hz ~150Hz  
0.5 ~ 10.0 (volts)  
24dB / octave  
18dB  
50Hz ~ 150Hz  
0 ~ 180 deg.  
0 ~ 18dB  
Damping factor  
Operating frequency(band-width)  
Input Sensitivity  
Low-Pass crossover slope attenuation factor  
Subsonic(cut/increase) range factor (15Hz ~ 40Hz)  
Continuously variable low-pass control(range)  
Continuously variable phase control(range)  
Continuously variable bass boost control(range)  
Source voltage (Automobile battery)(range)  
Maximum DC current 1 Ohm, 1% THD +n  
Dimensions(L x W x H)  
11 ~ 16V DC  
249 amperes DC *  
21" x 11.5" x 2.5"  
13.5V DC & 14.4V DC  
Test voltage  
Platinum RCA connectors  
Strap-able; Slave-master relationship  
* "maximum" current consumption reading was extracted at the impedance speciꢀed and at  
a source voltage of 14.4V DC  
Source voltage is limited to 11V~16V.  
If source voltage beyond this limit is applied to the Ampliꢀer, the warranty will be voided.  
Speciꢀcations  
X3.60  
16 Volts DC  
14.4 Volts DC  
12 Volts DC  
Impedance Load Measurement 1%THD 5%THD 10%THD 1%THD 5%THD 10%THD 1%THD 5%THD 10%THD  
2860  
53.4  
2070  
64.3  
1086  
65.9  
2940  
54.2  
2130  
65.3  
1120  
66.9  
3180  
56.3  
2300  
67.8  
1200  
69.3  
2780  
52.7  
1920  
61.9  
1050  
64.8  
2880  
53.6  
1988  
63  
3115  
55.8  
2150  
65.6  
1178  
68.6  
2560  
50.5  
1344  
51.8  
898  
2635  
51.3  
1380  
52.5  
925  
2840  
53.3  
1490  
54.5  
998  
RMS Wattage  
RMS AC Volts  
RMS Wattage  
RMS AC Volts  
RMS Wattage  
RMS AC Volts  
1 Ohm  
2 Ohm  
4 Ohm  
1085  
65.8  
59.9  
60.8  
63.1  
4000 Watt 2-second Burp Power at 16V and 10%  
3
FEATURES  
X3.71  
6500Watts  
Max Power  
350<@80Hz(+/- 5Hz)  
15Hz ~150Hz  
0.5 ~ 10.0 (volts)  
24dB / octave  
18dB  
50Hz ~ 150Hz  
0 ~ 180 deg.  
0 ~ 18dB  
Damping factor  
Operating frequency(band-width)  
Input Sensitivity  
Low-Pass crossover slope attenuation factor  
Subsonic(cut/increase) range factor (15Hz ~ 40Hz)  
Continuously variable low-pass control(range)  
Continuously variable phase control(range)  
Continuously variable bass boost control(range)  
Source voltage (Automobile battery)(range)  
Maximum DC current 1 Ohm, 1% THD +n  
Dimensions(L x W x H)  
11 ~ 16V DC  
510 amperes DC *  
23.75" x 11.5" x 2.5"  
13.5V DC & 14.4V DC  
Test voltage  
Platinum RCA connectors  
Strap-able; Slave-master relationship  
a source voltage of 13.5V DC  
Source voltage is limited to 11V~16V.  
X3.71  
16 Volts DC  
14.4 Volts DC  
12 Volts DC  
Impedance Load Measurement 1%THD 5%THD 10%THD 1%THD 5%THD 10%THD 1%THD 5%THD 10%THD  
4650  
68.1  
3400  
82.5  
1805  
84.9  
4780  
69.1  
3505  
83.7  
1860  
86.3  
5180  
71.9  
3780  
86.9  
2010  
89.7  
4450  
66.7  
3240  
80.5  
1750  
83.6  
4580  
67.6  
3330  
81.6  
1800  
84.8  
4960  
70.4  
3600  
84.8  
1945  
88.2  
3560  
59.6  
2310  
67.9  
1270  
71.3  
3670  
60.5  
2380  
69  
3950  
62.8  
2570  
71.7  
1410  
75.1  
RMS Wattage  
RMS AC Volts  
RMS Wattage  
RMS AC Volts  
RMS Wattage  
RMS AC Volts  
1 Ohm  
2 Ohm  
4 Ohm  
1305  
72.25  
6500 Watt 2-second Burp Power at 16V and 10%  
4
Controls & Functions  
X3.60  
<Front panel>  
1 0  
1
2
8
3
4
7
5
9
6
<Rear panel>  
14  
13  
11  
12  
5
Controls & Functions  
X3.71  
<Front panel>  
1
2
3
4
5
6
7
8
9
10  
<Rear panel>  
11  
13  
12  
14  
6
Controls & Functions  
1.Low Level OUT RCA jacks  
LINEOUT LINE IN  
LINEOUT LINE IN  
R
L
R
X3.71  
X3.60  
L
The LINE OUT allows you to build multiple amplifier systems without having to use splitter  
cords to distribute the signal. Now it is simply a matter of bringing one set of RCAS into the  
first amplifier, then using the line out RCA jacks as the feed to the next amplifier.  
2. Low Level Input RCA jacks  
LINEOUT LINE IN  
LINEOUT LINE IN  
R
L
R
X3.71  
X3.60  
L
These inputs are for signal cables from the source. Always use high quality shielded RCA  
cables.  
3. Input Sensitivity Adjustment  
LEVEL  
Min  
Max  
This control allows you to vary the amplifier's input sensitivity between 0.5 (500 millivolts) and  
10 volts. Clockwise (right-side) rotation raises the threshold and lowers the sensitivity, requiring  
higher input signal voltage from the source, in order to obtain maximum output.  
Counterclockwise (left-side) adjustment lowers the threshold and raises the sensitivity, requiring  
a lower source voltage from the headunit. The overall objective is to set this control to some  
intermediate point (0.5 - 10 volts), which closely matches the voltage produced by the headunit.  
Avoid setting the threshold too low and supplying excessive input signal voltage, as this would  
saturate the input stages and introduce unwanted distortion.  
7
Controls & Functions  
4.Subsonic Filter Control  
SUB  
SONIC  
15Hz  
40Hz  
Variable Subsonic Filter (15Hz - 40Hz) :  
The Subsonic ꢀlter will roll oꢁ all of the unwanted frequencies below 15Hz - 40Hz.  
This will allow the ampliꢀer to use that wasted power on the audible bandwidth.  
5. Bass Boost Control  
BASS  
BOOST  
0
+18dB  
By using the bass boost function, bass notes at 45Hz are emphasized as much as 18dB.  
X3.71  
X3.60  
8
Controls & Functions  
7. Low Level Filter Control  
LOW  
PASS  
50Hz 150Hz  
This control is used to set the desired low pass frequency (50 ~ 150HZ).  
The filter acts to cut-off frequencies above the set-point. In general, the selected frequency  
should closely match the resonant frequency of the speaker box.  
8. Phase Shift Control  
PHASE  
SHIFT  
00  
180  
0
The Variable phase control allows you to adjust the relative phase relationship between  
your subwoofers and/or your subwoofers & other speakers in your system. This is done by  
varying the control between 0 and 180 degrees.  
9. Bridged Mode  
BRIDGED MODE  
SLAVE  
MASTER  
DATA LINK  
9  
Controls & Functions  
10. LED indicatior  
POWER  
PROTECTION  
POWER : This GREEN LED will illuminate when the amplifier is turned "ON". If it fails to  
illuminate, check the power connections to the Amplifier and fuses.  
PROTECT: The amplifier protection circuitry will disable the amplifier if input overload, short  
circuit or extremely high temperature conditions are detected. When the protection mode  
is in operation, the red LED indicator on the side panel will be illuminated, indicating the  
amplifier has gone into a self-preservation mode.  
If you observe that the Protection LED is lit, please check the system carefully to determine  
what has caused the protection circuit to engage. The amplifier can be reset by turning  
the remote power off and then on again. If the amplifier shut down due to a thermal  
overload condition, please allow it to cool down before restarting. If the amplifier shut  
down because of an input overload or short circuit, be sure to repair these conditions  
before attempting to power up the amplifier again.  
11. Power(Battery positive)  
X3.60  
X3.71  
Due to the power requirements of the Amplifier, this connection should be made  
directly to the positive(+) terminal of battery. For safety measure, install an in-line fuse  
-Holder (not included)as close to the battery positive(+) terminal as possible with an  
ampere rating not to exceed the maximum current specified on page #3.  
1
0  
Controls & Functions  
12.B-Terminal (Chassis ground)  
X3.60D  
X3.71  
To avoid unwanted ignition noise caused by ground loops, it is essential that the  
Amplifier be grounded to a clean, bare, metal surface of the vehicles chassis.  
Note : GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3 FT (1 METER).  
13. Remote Power On  
X3.60D  
X3.71  
To remote wire From car stereo.  
The amplifier is turned "ON" remotely when vehicle's stereo is turned "ON"  
Note : IF YOUR RADIO DOES NOT HAVE +12 VOLT OUTPUT LEAD WHEN TURNED ON, THE  
"REMOTE" TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO VEHICLES ACCESSORY  
CIRCUIT WHICH PROVIDES +12V WHEN THE CAR IS ON.  
14. Speaker Terminals  
X3.71  
X3.60D  
11  
Planning and Mounting Your System  
The mounting position of your Amplifier will have a great effect on its ability to  
dissipate the heat generated during normal operation.  
Under normal conditions, the heatsink will dissipate sufficient heat to avoid thermal  
shutdown. However please do not install the amplifier in a wooden box or similar  
device as this will prevent heat dissipation into the atmosphere.  
Temperatures in car trunks have been measured as high as (155'F) in the summer  
time. since the thermal shut-down point for the amplifier is (158'F) it is easy to  
see that it must be mounted for maximum cooling capability. To achieve  
maximum advantage of convection air flow in an enclosed trunk, mount the  
amplifier in a horizontal position.  
Cooling requirements are considerably relaxed when mounting inside the passenger  
compartment since the driver will not often allow temperatures to reach a critical  
point. Floor mounting under the seat is usually satisfactory as long as there is at least  
1 inch of clearance (2.54 cm) above the Amplifier's fins for ventilation.  
A. Select a suitable location that is convenient for mounting, is accessible for wiring.  
And has ample room for air circulation and cooling.  
B. Use the amplifier as a template to mark the mounting holes. Remove the Amplifier  
and drill holes. Use extreme caution, inspect underneath surface before drilling!  
C. Secure the Amplifier using the screws provided.  
12  
Wiring Diagram  
X3.60  
SUB WOOFER  
1 OHM  
X3.71  
SUB WOOFER  
1 OHM  
13  
Bridging Two Ampliꢀers  
X3.60  
SLAVE  
MASTER  
MASTER AMP  
SLAVE  
MASTER  
SLAVE AMP  
MASTER AMP  
SPEAKER IMPEDANCE  
2 OHMS  
SLAVE AMP  
14  
Bridging Two Amplifiers  
X3.71  
SLAVE  
MASTER  
MASTER AMP  
SLAVE  
MASTER  
SLAVE AMP  
MASTER AMP  
SPEAKER IMPEDANCE  
2 OHMS  
SLAVE AMP  
15  
Tuning on the Amplifier  
The amplifier automatically turns on a few seconds after you turn your vehicle's ignition  
switch to ACC or ON or turn on your auto sound system, depending on how you wired  
the system. The POWER indicator on the top of the amplifier lights when the amplifier is on.  
Important : Your amplifier requires 30 amps or more of power from your vehicle's  
battery during operation. To protect your battery from discharging,  
do not operate the amplifier unless your vehicle is running.  
Adjusting The Audio Level  
For the best performance, you must set GAIN (MIN / MAX) on the side of the  
amplifier to adjust the level of the audio signals that enterthe amplifier.  
1. Use a screwdriver to turn GAIN (MIN / MAX) fully counterclockwise to MIN.  
2. Turn the auto sound system's volume control to about one-third of its full range.  
3. Adjust GAIN (MIN / MAX) to a comfortable listening level.  
4. Turn up the auto sound system's volume control until the sound begins to distort.  
Then immediately turn the volume down to a point just before where the  
distortion began.  
Caution : Never turn up the auto sound system's volume control more than needed  
to adjust the audio level, more than two thirds of its maximum volume.  
5. Adjust GAIN (MIN / MAX) until the sound is at the maximum level you want the  
amplifier to produce.  
6. Adjust the auto sound system's volume control to a comfortable listening level.  
FREQUENCY RESPONSE  
BASS BOOST ON  
+20dB  
+10dB  
0dB  
35  
80  
-10dB  
-20dB  
-30dB  
10  
45  
100  
500  
1K  
5K  
20K  
50K  
FREQUENCY (Hz)  
NOTE: Raising the Bass frequency allows higher frequencies to reach the bass speakers  
while blocking lower frequencies from midrange speakers. Lowering the Bass  
frequencies allows lower frequencies to reach the midrange speakers while  
blocking higher frequencies from bass speakers.  
16  
Trouble Shooting  
SYMPTOMS  
NO SOUND  
CHECK  
REMEDY  
Is the power  
LED illuminated?  
(NO)  
Check all fuses to amplifier.  
Be sure Turn-on lead is connected  
Check signal leads.  
Check gain control.  
Check Tuner/Deck volume level.  
Clean contacts on fuse holders.  
Is the Diagnostic  
LED illuminated? (YES)  
Check for speaker short or  
amplifier overheating.  
No power to power wire  
Repair power wire or connections.  
Check connections to radio.  
AMP NOT  
SWITCHING  
ON  
No power to remote  
wire with receiver on  
Replace fuse  
Burnt or broken fuse  
NO SOUND  
IN ONE  
CHANNEL  
Check Speaker Leads  
Inspect for short circuit or an  
open connection.  
Check Audio Leads  
Reverse Left and Right RCA inputs  
to determine if the problem is  
occurring before the amp.  
Be sure proper speaker load  
impedance recommendations  
are observed.  
Check Speaker load  
impedance  
AMP TURNING  
OFF  
MEDIUM /  
HIGH  
VOLUME  
(If you use an ohmmeter to check  
speaker resistance, please  
remember that DC resistance and  
AC impedance may not be the same.)  
PROTECTION  
LAMP ON  
Shut down  
Turn radio down  
Wait for AMP to cool  
Speaker wires shorted  
Separate speaker wires and  
insulate  
17  

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