INSTALLATION INSTRUCTIONS
686-10
REMOTE SPEAKER SWITCHER
The 686-10 is an infrared remote controlled Speaker Switcher. It allows the user to turn six stereo pairs of
speakers ON and OFF by way of IR commands from a Xantech RC68+ (or RC68) Programmer. The RC68+
commands are "taught" to learning devices and passed to the 686-10 signal input terminals via Xantech IR
receivers and keypads. Individual speaker pairs may be turned on or off in any particular room or all
speakers turned on and off from any room for a "party mode".
PROTECTION
RESISTOR
SPEAKER
OUT
2
3
4
5
6
1
I
N
L+
L-
LEFT
LEFT GND
IR CONFIRM
R-
RIGHT GND
RIGHT
R+
686-10 REMOTE SPEAKER SWITCHER
12 VDC
Fig. 1 The Model 686-10 Remote Speaker Switcher
FEATURES AND SPECIFICATIONS
• 200 watts per channel capacity.
• Switchable 4-Ohm series resistor for amplifier protection.
• Seven 4-terminal plug-in connectors. One for the amplifier input and 6 for the stereo, relay-switched
speaker outputs.
• Isolated Left and Right Grounds allow use of bridging type power amplifiers.
• 4-terminal IR input for Xantech IR Receivers, SmartPads, connecting blocks and other devices.
• IR Confirm LED lights only with RC68+ On/Off, Toggle & Group IR commands.
• RC68+ IR commands permit Toggle, Pair and Group mode operations as well as different IR codes for
use of multiple 686-10's. The 686-10's Code Group number is 98.
• Universal mounting fits 19-inch racks or any 3-1/2" X 19" surface. Projects about 2-3/4 inches behind
panel with cables connected.
• Requires RC68+ Programmer (or an RC68) and 782-00 Power Supply.
• Power: 12 VDC @ 300mA.
• Dimensions: 19" W x 3-1/2" H x 2-1/4" D.
RC68 PROGRAMMER / REMOTE CONTROL
The RC68+ Programmer (available separately) contains all commands necessary to operate the 686-10
(see Fig. 2).
• You will need it to program universal learning devices such as the Xantech URC-1 learning remote, the
Xantech Smart Pads, the 590 Controller, the 710 Fone Link, etc., with commands that operate the 686-
10.
• NOTE: The RC68+ codes operate several other Xantech models as well, such as the RS41AV, CC12,
ZPR68, etc. Therefore, only the button descriptions that apply to the operation of the 686-10 are
listed. All others should be ignored.
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Power Interruption Status
The 686-10 should normally be plugged into an unswitched AC outlet. However, if the power to the 686-
10 is interrupted by a power failure or other reason, the internal memory will retain the last selected
switched status for each of the speaker relays.
INSTALLATION
Fig. 3 shows a typical application of a 686-10 in a multiroom system. The amplifier and speakers are
connected to the Model 686-10 by the four-terminal plug-in connectors.
The order of the stereo speaker pairs used is not important. If you have only two pair of speakers connected
to positions 5 and 6, they will work just as well as they would connected to positions 1 and 2.
ThePROTECTIONRESISTORswitchconnectsafour-OhmresistorINandOUTofaseriesconnectionwith
the amplifier. The purpose of the resistor is to prevent loading the amplifier with less than four Ohms with
any combination of speakers. Since the 686-10 connects speakers in parallel, anytime two or more pair
of speakers are active the impedance would be less than four Ohms (a typical "eight-Ohm" speaker usually
has an actual impedance of less than eight Ohms somewhere between 20 Hz and 20 kHz). When all six
pair of eight-ohm speakers are active and the protection resistor is switched OUT, the parallel impedance
is less than 1-1/3 Ohms. With the resistor switched IN, the impedance will be less than 5-1/3 Ohms but
always more than four Ohms.
MAIN ROOM
Center
Speaker
Right
Speaker
Left
Speaker
SOURCE
COMPONENTS
Satellite Receiver
(To Multiroom
input jack on
AV receiver)
794/797
From Preout, Signal
Processor Out, etc.
AV Receiver
Universal Interface
(Version depends on
brand of AV receiver)
VCR
282M or
283M
794
SENDER/
EMITTER
UNIVERSAL INTERFACE
Mouse Emitters
N
GND1
GND2
+12V
ON
1
0
(ON)
OUT
+12V
(OFF)
1
2
3
4
5
6
7
8
9
1
0
1
2
3
4
5
6
7
8
9
10
XANTECH
Laser Disc
RCA patch
cords
Stereo Power Amp
R
L
To 120 V AC
(unswitched)
CD Changer
R+ R- L- L+
782-00
Power
Supply
686-10
Remote Speaker Switcher
Cassette DecK
PROTECTION
RESISTOR
SPEAKER
OUT
2
3
4
5
6
1
I
N
L+
L-
LEFT
LEFT GND
IR CONFIRM
R-
RIGHT GND
RIGHT
R+
686-10 REMOTE SPEAKER SWITCHER
EMITTERS
12 VDC
791-44
Amplified
Connecting
Block
791-44
AMPLIFIED
CONNECTING BLOCK
Speaker
Leads
(Home Runs)
HIGH
IR
RCVR
IR
OUT
12 VDC
3 Conductor Cables
for IR control signals
(Home Runs)
S-62/64/66
Wall Speakers
L
R
L
R
L
R
L
R
L
R
L
R
480-00
760-00
480-00
Smart
Pad™
760-00
490DW-00
"J" Box
IR Receiver
760-00
780-10
760-00
760-00
760-00
Smart
Pad™
Dinky Link ™
Dinky Link ™
Match Maker™
Match Maker™
Match Maker™
"J" Box Match Maker™
Match Maker™
Vol. Control
Match Maker™
Vol. Control
Vol. Control
Vol. Control
Vol. Control
IR Receiver
Vol. Control
IR Receiver
IR Receiver
REMOTE ROOM 1
REMOTE ROOM 2
REMOTE ROOM 3
REMOTE ROOM 4
REMOTE ROOM 5
REMOTE ROOM 6
Fig. 3 A Typical System using the 686-10 Remote Speaker Switcher
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686-10
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NOTE: When the 686-10 is connected to Xantech 760-00 Match Maker room volume controls, as shown
in Fig. 3, the PROTECTION RESISTOR is not necessary, since the Match Makers, when set correctly, will
provide the proper impedance match to the multiple speakers with virtually no power loss. In this case, be
sure the PROTECTION RESISTOR switch is set to the "OUT" position to prevent the waste of amplifier
power.
• • • IMPORTANT • • •
1. The Model 686-10 is intended to be mounted on a vertical surface so that the ventilation slots are at
the top and the bottom of the unit. Air should be allowed to circulate into the bottom slots and out of
the top slots, particularly when the PROTECTION RESISTOR is switched IN. The Model 686-10 will
mount onto a standard 19-inch rack.
2. PowerSupplyConsiderations. BecauseofthehighcurrentrequirementoftherelaysintheModel686-
10, the Xantech Model 782 High Current Regulated Power Supply must be used. In Fig. 3, all of the
system IR control devices are also powered from the 782 through the 686-10.
To be sure you have sufficient power supply capability in your particular system, calculate the total
current required by using the method shown in the 791-44 instructions, then add 300 mA for the
686-10. If the total exceeds 1A, use a second supply to power the IR devices separately through the
791-44.
When the installation requires more than six sets of speaker pairs, two or more 686-10's may be connected
as shown in Fig. 4.
When using multiple 686-10's, keep the following items in mind:
1. Follow the instructions that come with the 760-00 Match Maker volume controls to ensure proper
impedance matching of all the speakers to the power amplifier.
2. Fig. 4 drives 18 stereo pairs, reflecting an impedance of 3.56 Ohms to the power amplifier (assuming
all speakers are 8 Ohms each and the 760's are all set to the 8X position). This is satisfactory provided
the amplifier you are using is safe into 3.56 Ohms. If not, you may need to switch the PROTECTION
RESISTOR to the IN position on one or more of the 686-10's, or use additional amplifier(s) to drive the
686-10's individually.
3. Remember, when you switch a PROTECTION RESISTOR IN, the volume level to the speakers will
be decreased.
4. When using multiple 686-10's or in combination with a 680-10 or other devices that respond to RC68+
codes,besureeachissettoadifferentIRCODEGROUP. RefertoFig. 2and theRC68+Programmer
Instructions.
5. ToperformGroupONandOFFwithmultiple686-10's,itisnecessarytosequence(macro)thedifferent
ONandOFFcodesforeach686-10inalearningdevice,suchasthe XantechURC-1Remote,aSmart
Pad™, or a 590-00 Controller.
6. A CB18 Strip-IR Connecting Block is used in Fig. 4 to make the parallel connections from the IR
devices to the 791-44 Connecting Block. In this example, only 8 IR devices are shown connected to
the CB18. You would actually have to "double-up" on each of these connections if you need IR control
from all 18 rooms, or use an additional CB18.
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686-10
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+ 1 2 V
G
G
I
+ 1 2 V
G
G
I
+ 1 2 V
G
G
I
V
V
V
V
V
V
V
V
V
G
G
G
G
G
G
G
G
G
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G
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G
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S
S
S
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S
I N P U T
A M P L I F R
I N P U T
A M P L I F I E R
I N P U T
A M P L I F I E R
I R I N
T U A S S T
G N
+ 1
R
F
2-1-01
Rev.C
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686-10
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