Page 1
INSTALLATION MANUAL
TECHNOLOGY
25 VOLT STEREO VOLUME CONTROL
Attenuator type: Tapped auto transformer.
Switch: 12 position rotary, make-before-break contacts,
Connector: Screw-tight type, non-removable.
low torque specifications for smooth feel.
Input Power Rating: 25 volts: 25 Watts RMS continuous, 35 Hz-20 KHz.
Frequency Response: +0, -21/2 dB worst case (-6 dB tap), +0, -1 dB all other taps,
35 Hz-20 KHz. Most controls better these specifications.
Transformers: Grain-oriented, high silicon steel laminations.
Attenuation: -20 dB in 10 steps, 6 steps @ -2 dB each, 2 step @ 4 dB, last step OFF.
Mounting: Fits in most standard single electrical junction boxes,
depth less than 2 1/4".
Installation must be made by qualified service personnel, and must meet all local codes.
INSTALLATION
1. Make connections by stripping wire insulation back about 3/16". Twist any loose strands tightly.
2. Insert the wires from the amplifier into the INPUT openings of the connector, hot to hot and ground
to ground, then tighten screws. Check for stray wire strands that might cause a short circuit. Make
sure the metal part of the screw connector engages the bare wire, NOT the insulation!
3. Similarly, connect speaker wires to the control OUTPUT openings and tighten screws.
4. Select the appropriate POWER and IMPEDANCE taps on the matching transformer and connect it's
OUTPUT to the speaker voice coil terminals.
5. Install control in its operating location. Suggestion: Leave control 3 or 4 positions CCW from
maximum before firing-up the system for the first time to avoid "blasting" the speakers, while still
having enough sound to observe operation.
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
E-MAIL: sales@audioplexl.com
1999 -4/22/99
Page 2
WARRANTY:
Your AUDIOPLEX TECHNOLOGY Stereo Speaker Volume Control 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 product 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.
1999 - 4/22/99
WIRING DIAGRAM
+ L -
70(25) VOLT
MATCHING
TRANSFORMER
+ L -
AMPLIFIER
SPEAKER OUTPUT
70(25) VOLT
MATCHING
TRANSFORMER
- R +
- R +
OUTPUT
L+
L+R+ R+L- L-R- R-
25 / 70 VOLT
VOLUME CONTROL
(SIDE VIEW)
INPUT
Page 3
INSTALLATION MANUAL
TECHNOLOGY
70 VOLT STEREO VOLUME CONTROL
Attenuator type: Tapped auto transformer.
Switch: 12 position rotary, make-before-break contacts,
Connector: Screw-tight type, non-removable.
low torque specifications for smooth feel.
Input Power Rating: 70 volts: 25 Watts RMS continuous, 35 Hz-20 KHz.
Frequency Response: +0, -21/2 dB worst case (-6 dB tap), +0, -1 dB all other taps,
35 Hz-20 KHz. Most controls better these specifications.
Transformers: Grain-oriented, high silicon steel laminations.
Attenuation: -34 dB in 12 steps, 8 steps @ -3 dB each, 1 step @ 4 dB, 1 step
@ -6 dB, last step OFF..
Mounting: Fits in most standard single electrical junction boxes,
depth less than 2 1/4".
INSTALLATION
Installation must be made by qualified service personnel, and must meet all local codes.
1. Make connections by stripping wire insulation back about 3/16". Twist any loose strands tightly.
2. Insert the wires from the amplifier into the INPUT openings of the connector, hot to hot and ground
to ground, then tighten screws. Check for stray wire strands that might cause a short circuit. Make
sure the metal part of the screw connector engages the bare wire, NOT the insulation!
3. Similarly, connect speaker wires to the control OUTPUT openings and tighten screws.
4. Select the appropriate POWER and IMPEDANCE taps on the matching transformer and connect it's
OUTPUT to the speaker voice coil terminals.
5. Install control in its operating location. Suggestion: Leave control 3 or 4 positions CCW from
maximum before firing-up the system for the first time to avoid "blasting" the speakers, while still
having enough sound to observe operation.
1-800-257-2077 IN N.H. 1-603-544-8601
1999 - 4/22/99
AUDIOPLEX TECHNOLOGY
404 GWH, P.O. BOX 440
MELVIN VILLAGE, N.H. 03850
FAX: 1-603-544-8901
E-MAIL: sales@audioplex.com
Page 4
WARRANTY:
Your AUDIOPLEX TECHNOLOGY Stereo Speaker Volume Control is covered by a 10 year warranty
against any defects in workmanship and materials. Any defects will be remedied without charge for labor
or parts during this period of time following the date of purchase.
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 product 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.
1999 - 4/22/99
WIRING DIAGRAM
+ L -
70(25) VOLT
MATCHING
TRANSFORMER
+ L -
AMPLIFIER
SPEAKER OUTPUT
70(25) VOLT
MATCHING
TRANSFORMER
- R +
- R +
OUTPUT
L+
L+R+ R+L- L-R- R-
25 / 70 VOLT
VOLUME CONTROL
(SIDE VIEW)
INPUT
Page 5
INSTALLATION MANUAL
TECHNOLOGY
25 VOLT & 70 VOLT MONO VOLUME CONTROL
Attenuator type: Tapped auto transformer.
Switch: 12 position rotary, make-before-break contacts,
Connector: Screw-tight type, non-removable.
low torque specifications for smooth feel.
Equivalent Power Input Rating: 70 volts: 25 Watts RMS continuous, 25 volts: 10 Watts
RMS continuous, 35 Hz-20 KHz.
Frequency Response: +0, -21/2 dB worst case (-6 dB tap), +0, -1 dB
all other taps, 35 Hz-20 KHz. Most controls
better these specifications.
Transformers: Grain-oriented, high silicon steel laminations.
Attenuation: -20 dB in 10 steps, 6 steps @ -2 dB each, 2 step
@ 4 dB, last step OFF.
Mounting: Fits in most standard single electrical junction
boxes, depth less than 2 1/4".
INSTALLATION
Installation must be made by qualified service personnel, and must meet all local codes.
1. Make connections by stripping wire insulation back about 3/16". Twist any loose strands tightly.
2. Insert the wires from the amplifier into the INPUT openings of the connector, hot to hot and ground
to ground, then tighten screws. Check for stray wire strands that might cause a short circuit. Make
sure the metal part of the screw connector engages the bare wire, NOT the insulation!
3. Similarly, connect speaker wires to the control OUTPUT openings and tighten screws.
4. Select the appropriate POWER and IMPEDANCE taps on the matching transformer and connect it's
OUTPUT to the speaker voice coil terminals.
5. Install control in its operating location. Suggestion: Leave control 3 or 4 positions CCW from
maximum before firing-up the system for the first time to avoid "blasting" the speakers, while still
having enough sound to observe operation.
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 6
WARRANTY:
Your AUDIOPLEX TECHNOLOGY Mono Speaker Volume Control is covered by a 10 year warranty
against any defects in workmanship and materials. Any defects will be remedied without charge for labor
or parts during this period of time following the date of purchase.
Damage incurred by shipping or accident is not considered to be a defect, and not covered by this
warranty. AUDDIOPLEX TECHNOLOGY, is not responsible for defective operation caused by abuse or
by modification or service by any unauthorized person or agency.
The product 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.
WIRING DIAGRAM
-AMPLIFIER-
SPEAKER OUTPUT
- +
IN
+ -
70(25) VOLT
MATCHING
TRANSFORMER
OUT
+ -
+ -
VOLUME CONTROL
(BACK VIEW)
AUDIOPLEX TECHNOLOGY
404 GWH P.O. BOX 440
MELVIN VILLAGE, N.H. 03850
1-800-257-2077 1-603-544-8601 FAX: 1-603-544-8901
E-MAIL: sales@audioplex.com
VOLUME CONTROL
(SIDE VIEW)
1999 - 4/22/99
Page 7
INSTALLATION MANUAL
TECHNOLOGY
10 WATT / 70 VOLT MONO VOLUME CONTROL
SPECIFICATIONS
Attenuator type: Tapped auto transformer.
Switch: 12 position rotary, make-before-break contacts,
low torque specifications for smooth feel.
Connectors: Screw type, non-removable.
Power Input Rating: 10 Watts RMS continuous. 35 Hz-20 KHz.
Attenuation: 34 dB in 12 steps: 8 steps @ -3 dB, 1 step @ -4 dB, 1 step @ -6 dB, last
step OFF.
Transformers: Grain-oriented, high silicon steel laminations.
Mounting: Fits most standard single gang electrical junction boxes.
INSTALLATION
Installation must be made by qualified service personnel, and must meet all local codes.
1. Make connections by stripping wire insulation back about 3/16". twist any loose strands tightly to
avoid short circuits.
2. Insert the wires from the amplifier into the INPUT openings of the connector, hot to hot and ground
to ground, then tighten screws. Check for stray wires strands that could cause a short circuit. Make
sure that the metal part of the screw connector engages the bare wire, NOT the insulation!
3. Similarly, connect the speaker wires to the OUTPUT openings on the connectors and tighten the
screws.
4. Install the control in its operating position. Suggestion: Leave control 3 or 4 positions CCW from
maximum before firing up the system for the first time to avoid "blasting" the speakers, while still
having enough sound to observe operation.
WARRANTY
Your AUDIOPLEX TECHNOLOGY Mono Speaker Volume Control is covered by a LIFETIME
warranty against 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 product must be properly installed and operated according to instructions for this 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.
1999 - 4/22/99
Page 8
- +
70(25) VOLT
MATCHING
TRANSFORMER
WIRING DIAGRAM
AMPLIFIER/SPEAKER OUTPUT 70 Volt
- +
+ OUT -
- IN +
AUDIOPLEX TECHNOLOGY
404 GWH P.O. BOX 440
MELVIN VILLAGE, N.H. 03850
800-257-2077 603-544-8601 603-544-8901
www.audioplex.com
Page 9
INSTALLATION MANUAL
TECHNOLOGY
10 WATT / 70 VOLT STEREO VOLUME CONTROL
SPECIFICATIONS
Attenuator type: Tapped auto transformer.
Switch: 12 position rotary, make-before-break contacts,
low torque specifications for smooth feel.
Connectors: Screw type, non-removable.
Power Input Rating: 10 Watts RMS continuous. 35 Hz-20 KHz.
Attenuation: 34 dB in 12 steps: 8 steps @ -3 dB, 1 step @ -4 dB, 1 step @ -6 dB, last
step OFF.
Transformers: Grain-oriented, high silicon steel laminations.
Mounting: Fits most standard single gang electrical junction boxes.
INSTALLATION
Installation must be made by qualified service personnel, and must meet all local codes.
1. Make connections by stripping wire insulation back about 3/16". twist any loose strands tightly to
avoid short circuits.
2. Insert the wires from the amplifier into the INPUT openings of the connector, hot to hot and ground
to ground, then tighten screws. Check for stray wires strands that could cause a short circuit. Make
sure that the metal part of the screw connector engages the bare wire, NOT the insulation!
3. Similarly, connect the speaker wires to the OUTPUT openings on the connectors and tighten the
screws.
4. Install the control in its operating position. Suggestion: Leave control 3 or 4 positions CCW from
maximum before firing up the system for the first time to avoid "blasting" the speakers, while still
having enough sound to observe operation.
WARRANTY
Your AUDIOPLEX TECHNOLOGY Stereo Speaker Volume Control is covered by a LIFETIME
warranty against 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 product must be properly installed and operated according to instructions for this 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.
1999 - 4/22/99
Page 10
+ L -
WIRING DIAGRAM
AMPLIFIER
SPEAKER OUTPUT
- R +
70(25) VOLT
MATCHING
TRANSFORMER
+ L -
70(25) VOLT
MATCHING
TRANSFORMER
- R +
OUTPUT
L+
INPUT
L+R+ R+L- L-R- R-
10 WATT/70 VOLT
VOLUME CONTROL
(SIDE VIEW)
STEP DOWN TRANSFORMER
REQUIRED FOR 8 OHM SPEAKERS (NOT INCLUDED)
800-257-2077 603-544-8601 603-544-8901
1999 - 4/22/99
AUDIOPLEX TECHNOLOGY
404 GWH P.O. BOX 440
MELVIN VILLAGE, N.H. 03850
www.audioplex.com
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