Amplifier Owner’s Manual
© 2018 Phoenix Gold • www.phoenixgold.com
RX2 750.5
MULTI-CHANNEL POWER AMPLIFIERS
Features listed below are in order from left to right on
the amplifier.
REMOTE LEVEL CONTROL
This port is for connecting the remote subwoofer level
control. This allows up to 20dB of volume adjustment.
This is not a bass boost, it controls the level of the low
pass signal.
MODE - (FRONT, REAR AND SUB INPUTS)
Mode allows either 2ch, 4ch or 6(5) channel inputs
to be used to drive the amplifier and no use of
Y-connectors are needed.
● Select
FRONT
if you only have 2ch of signal. The
amplifier will split the signal internally and send to Rear
and Sub channels.
● Select
F+R
if you have 4ch of signal. The amplifier
will split the signal internally from the front and rear
channels and send to Sub channel.
● Select
F+R+S
if you have 6ch of signal. The amplifier
will sum the 2ch sub input to create channel 5. This
setup will also have full control from your source unit for
front rear and sub levels.
X-OVER (REAR)
Full
or
HPF
is selectable. Select Full if you are using an
outboard crossover/processor or you wish the Rear
channels to amplify full range signal. Select
HPF
(High
Pass Filter) to activate the internal crossover which is
continuously variable from 50Hz to 200Hz.
SUBSONIC
Controls the subsonic highpass filter crossover point.
Continuously variable from 10Hz to 40Hz to remove low
frequencies to increase system efficiency, output and
speaker protection on the Sub channel (5).
GAIN (REAR)
Used to adjust the input sensitivity to match the input
level signal on the Rear channels. Continuously variable
from 0.2V to 6V. Adjust this with the help of a DMM and
a test signal or an Oscilloscope. See
System Tuning
section for setup instructions.
REAR, FRONT AND SUB INPUTS
Connect preamp signal cables from headunit to
these inputs. These inputs are controlled by the
MODE
switch. Be sure to select the correct mode for the
amount of inputs you will be using for your installation.
GAIN (SUB)
Used to adjust the input sensitivity to match the
input level signal on the Sub channels. Continuously
variable from 0.2V to 6V. Adjust this with the help of a
DMM and a test signal or an Oscilloscope. See
System
Tuning
section for setup instructions.
HPF (HIGH PASS FILTER - FRONT)
Controls the highpass crossover point for the Front
channels. Continuously variable from 50Hz to 200Hz.
BASS EQ (SUB)
Selectable Bass EQ with boost adjustment to 0dB, 6dB
or 12dB.
X-OVER (FRONT)
Full
or
HPF
is selectable. Select Full if you are using an
outboard crossover/processor or you wish the Front
channels to amplify full range signal. Select
HPF
(High
Pass Filter) to activate the internal crossover which is
continuously variable from 50Hz to 200Hz.
LPF (LOW PASS FILTER - SUB)
Controls the lowpass crossover point for the SUB
channel. Continuously variable from 50Hz to 200Hz.
GAIN (FRONT)
Used to adjust the input sensitivity to match the input
level signal on the Front channels. Continuously
variable from 0.2V to 6V. Adjust this with the help of a
DMM and a test signal or an Oscilloscope. See
System
Tuning
section for setup instructions.
HPF (HIGH PASS FILTER - FRONT)
Controls the highpass crossover point for the Front
channels. Continuously variable from 50Hz to 200Hz.
11.81in /300.00 mm
8.
11
in /
20
6.
00 m
m
1.
98
in
/5
0.
5 m
m
8.11in /206.00 mm
