Symetrix RC-3 User's Guide

Fast First-Time Setup

Symetrix RC-3 User’s Guide

Making Hardware Connections

1 Connect your line-level audio

inputs and outputs to the
AUDIO IN and AUDIO OUT
Euroblock connectors.

2 Connect your remote controls to

the CONTROL Euroblock connec­tors.

3 Connect the external power

supply to the 308 unit, then
plug the power supply into an
AC outlet.

4 Apply line-level audio signal to

the inputs.

5 Adjust the remote controls to

maximum level. Then set your
system power amp levels to the
desired maximum level. As you
adjust the remote controls, the
308 passes audio signals. At full
volume setting, the 308 is at
unity gain.

6 Turn down the remote controls

to the lowest listening level you
expect the system to be oper­ated at.

7 The EQ DEPTH trimpots are set

for maximum loudness contour
from the factory. At the lowest
VCA setting, the EQ DEPTH is
–15 dB @ 1k. Adjust the trimpots
counterclockwise if you want
less EQ response. To turn off
this feature, turn the trimpots
completely counterclockwise.

 Fast Setup is complete.

Basic Remote Setup Showing One Channel

(VOLUME CONTROL POTS 10K OHMS LINEAR TAPER)

POWER

INPUT

CHANNEL 1

Control Voltage
0 to 10V

Ramp Generator GND
0 to 10V

Volume

SYMETRIX RC-3 REMOTE CONTROL PIN CONNECTION
TO THE 308 PINS

RC-3 Pins 308 Channel 1 Pins 308 Channel 2 Pins

CONNECT TO
SYMETRIX
PS-3 OR PS-3E
POWER
SUPPLY ONLY.

+10V +10V +10V

CTL CTL1 CTL2

RAMP1

Symetrix RC-3 Remote Control

CTL1

+10V

GND2

RAMP2GND1

CTL2

EQ DEPTH AUDIO OUT

+24V

GND

GND

CTL

+10

21

AUDIO INCONTROL

2

121

308

GND GND1 GND2

RAMP/CONTROL VOLTAGE PIN CONNECTION TO THE 308 PINS

Device Pins 308 Channel 1 Pins 308 Channel 2 Pins

Ramp generator GND GND1 GND2

Control voltage CTL1 CTL2

1