Page 1
INSTALLATION MANUAL
TECHNOLOGY
INW-2
IN-WALL STEREO SWITCHER
Power: Transformers rated at 72 Watts RMS continuous (216 Watts audio)
35Hz-20kHz.
Load: 4 or 8 Ohm speakers.
Size: INW-2 fits most single wall junction boxes.
Connections: Screw type connectors.
The INW-2 switches up to 2 pairs of 4 Ohm or higher impedance speakers in any
combination, while maintaining a safe load to the amplifier of 4 or 8 Ohms.
The load protection is achieved by use of an impedance matching transformer,
which offers several significant advantages. First, there is little or no heat developed
whether one or two speakers pairs are operating simultaneously, so no fire hazard exists
with the in-wall switcher. Second, all switching can be elegantly contained in a single in-wall junction
box without modification.
IMPORTANT
The INW-2 is normally supplied with the impedance matching jumper connected to the X2 position,
which multiplies the speaker impedance to 2 times the nominal value. Thus if 2 pairs of 4 Ohm speakers
are switched on at the same time, the parallel impedance load would be 2 Ohm. The transformer setting
multiplies the impedance by 2, so the total load to the amplifier appears as 4 Ohms. The jumper settings
can be adjusted to accommodate different situations.
X0
X2
L
X4
X8
X16
X0
X2
R
X4
X8
X16
Jumper settings when only
one switchbank is used (X2).
INSTALLATION
The wiring diagram illustrates connections to the INW-2. Note that all the LEFT speaker and
amplifier LEFT channel connect to one side of the unit, and the RIGHT to the other. Wires should be
stripped about 1/4", inserted in the appropriate connector opening, and the screw tightened. Check to be
sure that no stray strands stick out to cause short circuits!
2000 - 6/20/00
AUDIOPLEX TECHNOLOGY
404 GWH, P.O. BOX 440
1-800-257-2077 IN N.H. 1-603-544-8601
MELVIN VILLAGE, N.H. 03850
FAX: 1-603-544-8901
Page 2
WIRING DIAGRAM
AMPLIFIER
- R +
OUTPUTS
+ L -
IN R+
IN R-
1 RO+
1 RO-
2 RO+
2 RO-
+ L - + L -
INW 2
BACK VIEW
IN L+
IN L-
1 LO+
1 LO-
2 LO+
2 LO-
- R +- R +
#1
Your AUDIOPLEX TECHNOLOGY INW-2 Series Speaker Selector is covered by a LIFETIME warranty against any
defects in workmanship and materials. Any defects will be remedied without charge for labor or parts.
Damage incurred by shipping or accident is not considered to be a defect, and not covered by this warranty. AUDIOPLEX
TECHNOLOGY, is not responsible for defective operation caused by abuse or by modification or service by any
unauthorized person or agency.
The unit must be properly installed and operated according to instructions for the warranty to apply. Any necessary
servicing must be done by AUDIOPLEX TECHNOLOGY. The product must be returned expenses prepaid, with written
authorization from the company. The product must be shipped with the proof of purchase and in the original carton and
packing material to avoid damage.
This warranty gives you specific legal rights. You may have other rights which vary from state to state.
#2
#1#2
2000 - 6/20/00
Page 3
INSTALLATION MANUAL
TECHNOLOGY
INW-4
IN-WALL STEREO SWITCHER
Power: Transformers rated at 72 Watts RMS continuous (216 Watts audio) 35Hz-20kHz
Load: Match up to 4 pairs of 4 or 8 Ohm speakers with all on simultaneously.*
Size: INW-4 fits most single in-wall junction boxes.
Connections: Screw type connectors.
*For amplifiers requiring a load of 8 Ohms or higher you must adjust tap settings to X16 when using more than 2
sets of 4 or 6 Ohm speakers.
The INW-4 switches up to 4 pairs of 4, 8 Ohm or higher impedance speakers in any
combination, while maintaining a safe load to the amplifier. The load protection is achieved by use of an
impedance matching transformer, which offers several significant advantages. First, there is little or no heat
developed whether one or all the speakers are operating simultaneously, so no fire hazard exists with the in-wall
switcher. Second, all switching can be contained in a single in-wall junction box without modification.
IMPORTANT
The INW-4 is supplied with two impedance matching jumpers that are normally connected to the X4 position,
which multiplies the speaker impedance to 4 times the nominal value. Thus if 4 pairs of 4 Ohm speakers are
switched on at the same time, the parallel impedance load would be 1.0 Ohms. The transformer setting multiplies
the impedance by 4, so the total load to the amplifier appears as 4 Ohms. The jumper settings can be adjusted to
accommodate different situations.
INSTALLATION
Wires should be stripped about 1/4", inserted in the appropriate connector opening, and the screw tightened.
Check to be sure that no stray strands stick out to cause short circuits!
WARRANTY
Your AUDIOPLEX TECHNOLOGY INW-4 Series Speaker Selector is covered by a LIFETIME
warranty against any defects in workmanship and materials. Any defects will be remedied without
charge for labor or parts.
Damage incurred by shipping or accident is not considered to be a defect, and not covered by this
warranty. AUDIOPLEX TECHNOLOGY, is not responsible for defective operation caused by abuse
or by modification or service by any unauthorized person or agency.
The unit must be properly installed and operated according to instructions for the warranty to apply.
Any necessary servicing must be done by AUDIOPLEX TECHNOLOGY. The unit must be returned
expenses prepaid, with written authorization from the company. The product must be shipped with the
proof of purchase and in the original carton and packing material to avoid damage. This warranty gives
you specific legal rights. You may have other rights which vary from state to state.
2000 - 6/20/00
Page 4
WIRING DIAGRAM
AMPLIFIER
+ L -
OUTPUTS
BACK VIEW
- R +
INW-4
TOP
+ L -
IN L+
IN L-
1 LO+
1 LO-
2 LO+
2 LO-
3 LO+
3 LO-
4 LO+
4 LO-
+ L - + L -+ L -
- R +
IN R+
IN R-
1 RO+
1 RO-
2 RO+
2 RO-
3 RO+
3 RO-
4 RO+
4 RO-
- R +- R +- R +
#1 #1#2 #2#3 #3#4 #4
INW-4
(front view)
1
2
3
4
2000 - 6/20/00
Page 5
INSTALLATION MANUAL
TECHNOLOGY
INWNP-2
SPECIFICATIONS
Power: The INWNP-2 is rated at 100 Watts RMS continuous.
Size: The INWNP-2 will fit most standard single electrical junction boxes.
Connections: Screw type connectors.
GENERAL INFORMATION
The INWNP-2 switches up to two pairs of speakers, in any combination. from one
convenient location. The wiring diagram illustrates connections to the INWNP-2. Note that all
the LEFT speaker and LEFT amplifier connections are on one side of the unit, and all the right
ones are on the other. Wires should be stripped about 1/4", inserted in the appropriate connector
opening, and the screw tightened. Check to be sure that no stray strands stick out to cause short
circuits!
WARRANTY
Your AUDIOPLEX TECHNOLOGY INWNP-2 speaker selector is covered by a LIFETIME
warranty against any defects in workmanship and materials. Any defects will be remedied
without charge for labor or parts.
Damage incurred by shipping or by accident is not considered to be a defect, and not
covered by this warranty. AUDIOPLEX TECHNOLOGY is not responsible for defective operation
caused by abuse or by modification or service by any unauthorized person or agency.
The unit must be properly installed and operated according to instructions for the
warranty to apply. Any necessary servicing must be done by AUDIOPLEX TECHNOLOGY. The
product must be returned expenses prepaid, with written authorization from the company. The
product must be shipped with the proof of purchase and in the original carton and packing
material to avoid damage.
This warranty gives you specific legal rights. You may have other rights which vary from
state to state.
2000 - 6/20/00
Page 6
WIRING DIAGRAM
AMPLIFIER
OUTOUTS
- L + - R +
+ L -
+ L -
IN L+
IN L-
1 LO+
1 LO-
2 LO+
2 LO-
IN R+
IN R-
1 RO+
1 RO-
2 RO+
2 RO-
- R +
- R +
AUDIOPLEX TECHNOLOGY
1-800-257-2077 IN N.H. 1-603-544-8601
INWNP-2
(Front View)
404 GWH P.O. BOX 440
MELVIN VILLAGE, N.H. 03850
FAX: 1-603-544-8901
E-MAIL: sales@audioplex.com
2000 - 6/20/00
Page 7
INSTALLATION MANUAL
TECHNOLOGY
INWNP-4
SPECIFICATIONS
Power: The INWNP-4 is rated at 100 Watts RMS continuous.
Size: The INWNP-4 will fit most standard single electrical junction boxes.
Connections: Screw type connectors.
GENERAL INFORMATION
The INWNP-4 switches up to four pairs of speakers, in any combination, from one
convenient location. The wiring diagram illustrates connections to the INWNP-4. Note that all
LEFT speaker and LEFT amplifier connections are on one side of the unit, and all the right ones
are on the other side. Wires should be stripped about 1/4", inserted in the appropriate
connector opening, and the screw tightened. Check to be sure that no stray strands stick out to
cause short circuits!
WARRANTY
Your AUDIOPLEX TECHNOLOGY INWNP-4 speaker selector is covered by a LIFETIME
warranty against any defects in workmanship and materials. Any defects will be remedied
without charge for labor or parts.
Damage incurred by shipping or by accident is not considered to be a defect, and not
covered by this warranty. AUDIOPLEX TECHNOLOGY is not responsible for defective operation
caused by modification or service by any unauthorized person or agency.
The unit must be properly installed and operated according to instructions for the
warranty to apply. Any necessary servicing must be done by AUDIOPLEX TECHNOLOGY. The
product must be returned expenses prepaid, with written authorization from the company. The
product must be shipped with the proof of purchase and in the original carton and packing
material to avoid damage.
This warranty gives you specific legal rights. You may have other rights which vary from
state to state.
2000 - 6/20/00
Page 8
WIRING DIAGRAM
AMPLIFIER
+ L - - R +
OUTPUTS
INWNP-4
(BACK VIEW)
+ L -
+ L -
+ L -
#3
+ L -
#4
IN L+
IN L-
1 LO+
1 LO-
2 LO+
2 LO-
3 LO+
3 LO-
4 LO+
4 LO-
INWNP-4
(FRONT VIEW)
IN R+
IN R-
1 RO+
1 RO-
2 RO+
2 RO-
3 RO+
3 RO-
4 RO+
4 RO-
- R +
- R +
- R +
#4
- R +
#3
#2
#1
AUDIOPLEX TECHNOLOGY
404 GWH P.O. BOX 440
MELVIN VILLAGE, N.H. 03850
1-800-257-2077 IN N.H. 1-603-544-8601
FAX: 1-603-544-8901
E-MAIL: sales@audioplex.com
#2
#1
2000 - 6/20/00
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