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Connections
For balanced input connections, use a 3-pole cable (hot, cold, ground) wired to a
Euroblock connector.
3-Pin Euroblock Connector - Input
1
1. hot (+)
2
2. cold (-)
3
3. ground/shield
For output signals, connect a 4-pole Euroblock connector to the main output
connector. Do NOT connect any terminal to ground. Do NOT connect the cold (-)
terminals together for common returns. Make sure to set the Config switches in
the correct position to match your intended use. Speaker wire of 14-18 AWG
(0.8 to 2.5 mm) is recommended for connections up to 50 feet.
1
2
3
4
Config
The first 2 Config dipswitches allow the output to be configured for 100 V, 70 V,
8 Ω, or 4 Ω operation. Always use the correct configuration for the speakers
being driven! The mode of operation configures both the maximum voltage of
the output and the gain through the device.
1. Out A - hot (+)
2. Out A - cold (-)
3. Out B - hot (+)
4. Out B - cold (-)
The 8 Ω setting should be used for a pair of 16 Ω speakers or a single 8 Ω speaker.
The 4 Ω setting should be used for 4 x 16 Ω, 2 x 8 Ω, or a single 4 Ω speaker.
Use 70 or 100 V setting for Constant Voltage high impedance speaker systems.
Make sure the sum of the power tapping on the speakers plus margin does not
exceed the amplifier's maximum power rating.
The 3rd dipswitch engages a high-pass filter at 80 Hz, which should be used on
all Constant Voltage systems to avoid saturation on the transformer-enabled
speakers, but can also be used to help maintain clear sound from small speakers
or bass-heavy audio.
Remote
Color
RJ-45 Pin
(T568B)
White/
1
Orange
Orange
2
3
White/Green
Brown
8
RJ45 receptacle to connect an optional remote volume control per channel.
Use a standard cable to connect the CRC-V accessory. Or connect a custom
potentiometer with the pinout information. Cable length above 305 m (1000 ft)
is not recommended.
GND GPI1 GPI2 VCC
GPO
Shield
1
2
8
Signal Wake-up
If the amps are powered on, but do not receive any input signal (below signal
present level) for 20 minutes, the system will enter standby mode to save
power consumption. As soon as a signal is detected at any input, the unit will exit
standby mode and resume normal function.
Quick Start Guide
Remote
(1 channel
Remote
products )
A+B
Remote B
VCC 10V
VCC 10V
VCC 10V
Volume
Volume
Volume
Control
Control
Control
Channel A
Channel B
Volume
N/A
Control
N/A
Channel B
Ground
Ground
Ground
13
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