Phoenix Gold MX 800.5 - MX 600.4 Controls and Connections; Terminal Descriptions; Control Knobs and Switches

Amplifier Owner’s Manual
© 2019 Phoenix Gold • www.phoenixgold.com © 2019 Phoenix Gold • www.phoenixgold.com
Amplifier Owner’s Manual
Features listed below are in order from left to right
on the amplier.
GAIN (FRONT)
Used to adjust the input sensitivity to match
the input level signal on the Front channels.
Continuously variable from 0.2V to 10V. Adjust
this with the help of a DMM and a test signal or
an Oscilloscope. See System Tuning section for
setup instructions.
X-OVER (FRONT)
Full, HPF, LPF 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) or LPF (Low
Pass Filter) to activate the internal crossover
which is continuously variable from 40Hz to 500Hz
using FREQ
FRONT, REAR INPUTS
Connect preamp signal cables from head unit to
these inputs. For a high-level signal, you will need
RCA to Speaker Wire Adaptors (Stinger X12LINE
or similar).
INPUTS (FRONT/REAR)
If you are using RCA or high level signal from an
aftermarket head unit, select UNBAL. If you are
using high level from a OEM Factory source unit
or amplier select BAL.
MX 600.4
MULTI-CHANNEL POWER AMPLIFIERS
GAIN (REAR)
Used to adjust the input sensitivity to match the input
level signal on the Front channels. Continuously
variable from 0.2V to 10V. Adjust this with the help of a
DMM and a test signal or an Oscilloscope. See System
Tuning section for setup instructions.
X-OVER (REAR)
Full, HPF, LPF 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) or LPF (Low Pass Filter) to activate the
internal crossover which is continuously variable from
40Hz to 500Hz using FREQ
POWER/PROTECT LED
Amplier status indicator. Blue indicates all systems
working and amplier is on. Red indicates protection
mode, from Thermal, Short Circuit or Blown Fuse. (See
Troubleshooting)
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. Note: Remote level control affects only
Rear Channels when LPF is selected.
MX 600.4
MULTI-CHANNEL POWER AMPLIFIERS
SPEAKER OUTPUTS
Used to connect the amplier to speakers. MX
600.4 minimum impedance is 2 Ohms on all
channels. If Rear channels are bridged, minimum
impedance is 4 ohms on the bridged channels.
Bridging rear channels is accomplished buy using
RL+ and RR- output.
FUSE
On-Board fuse protection via ATC fuses. If blown,
only replace with same value fuses (2 x 30A)or
risk damage to unit and voiding the warranty.
+12V
This must be connected to the fused positive terminal
(+12V) of the car’s battery. A fuse must be located
within 18 inches of the battery to protect the vehicle
and should be fused at, or above, the ampliers fuse
rating.
REMOTE (REM)
This must be connected to switched +12V, usually a
trigger wire coming from the head unit or an ignition
lead if one is not available.
GROUND
This must be connected to the negative terminal of the
car’s battery or bolted to a clean, unpainted part of the
chassis of the vehicle, use of an Stinger Expert Ground
Terminal (SPTE) is recommended. Bad grounds account
for 90% of amplier issues, make sure you ground the