Phoenix Gold MX 800.5 - MX 800.1 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.
LINE OUTPUT
Used to connect to a secondary amplier
without degrading signal strength via internal line
driver.
LINE INPUT
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
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.
GAIN
Used to adjust the input sensitivity to match the
input level signal. 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.
SUBSONIC
Continuously variable from 10Hz-55Hz to remove
low inaudible frequencies to increase system
efciency and protect speakers.
MX 800.1
MONOBLOCK POWER AMPLIFIERS
BOOST
Controls the bass boost from 0 to +18dB
FREQ
Low Pass Filter which is continuously variable from 50Hz
to 250Hz
PHASE
Controls the Phase from 0-180° from the listening
position. Properly adjusting phase will allow enhanced
bass response, dynamics and impact at any volume.
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.
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)
MX 800.1
MONOBLOCK POWER AMPLIFIERS
SPEAKER OUTPUTS
Used to connect the amplier to speakers.
MX 800.1 minimum impedance is 1 Ohm.
FUSE
On-Board fuse protection via ATC fuses. If blown,
only replace with same value fuses (3 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