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PRX800.5V
PRX500.4V
PRX500.2V
PRX600.1V
PRX1000.1V
PRX1500.1V
End Panel Connections
High Input: Use this connection method when feeding the amplifier with a high-level speaker input from a factory
radio or OEM amplifier.
Low Level Output: (MONO Amps) Use this output connection to feed the audio signal to additional amplifiers.
Remote: (all models) Use only "PRX" Remotes for this amplifier model. The adjustment will increase/decrease the
output level of the amplifier. The remote controller only operates the subwoofer channel of the PRX800.5V.
Input Mode Switch: (PRX800.5V/PRX500.4V) Place the switch on the number of audio inputs being used. If 2CH or
4CH is selected on the PRX800.5V, the subwoofer channel will be provided.
Setup And Adjustment
Control View
FULL RANGE AMP SET UP & ADJUSTMENT
Gain
The gain control is NOT a volume control. The gain control adjusts the amount of signal required to drive the
amplifier to full output. With the gain at full clockwise rotation, less signal voltage is required to drive the amp to
full output. With the gain at full counter clockwise rotation, more signal voltage is required to drive the amp to full
output. For optimal performance, set the gain control to minimum
High Pass Filter (HPF)
The high pass crossover/filter is designed to remove low frequency information from a speaker. This is generally
used to protect smaller devices from trying to reproduce low frequency information that might damage them. The
crossover frequency is adjustable from 50 Hz to 1 kHz and uses 12 dB per octave slope. To engage the HPF simply
slide the switch to the position on the marked HPF. Crossover frequency selection is made by rotating the dial:
clockwise raises the frequency, counter-clockwise lowers the frequency. Most mid-bass or midrange drivers should
be set between 80 and 400 Hz depending on how high the subwoofer(s) plays. For mid-range drivers that are 5" or
smaller we suggest setting the HPF to 120Hz. The HPF can also be combined with passive crossovers on a separate
or coaxial speaker set to provide low frequency protection to the midrange driver, or to form band-pass filter for a
midrange speaker already using a passive low-pass filter.
Low Pass Filter (LPF)
The Lowpass crossover/filter is designed to remove high frequency information from a speaker. This is generally
used to prevent mid bass speakers or subwoofers from trying to reproduce mid and high frequency information that
they are not designed to reproduce. The crossover frequency is adjustable from 50Hz to 250Hz and uses a 18dB per
octave slope. To engage the LPF slide the switch to the position marked LPF. Frequency selection is made by rotating
the dial: clockwise raises the frequency and counter clockwise lowers the frequency. Most subwoofers should be
set between 80Hz and 100Hz depending on how low the mid-bass or midrange drivers are capable of playing.
Full Range
Sliding the selector switch to this position turns off all crossovers and allows a full range signal to pass. The flat
position should be selected when using outboard electronic crossovers.
Top Mounted Control Panel
Remove the two allen head screws to remove the top panel an access the controls.
6V
0.2V
FULL
HPF 50Hz
1KHz
6V
0.2V
FULL
HPF 50Hz
1KHz
LEVEL
X-OVER
HPF FRONT
LEVEL
X-OVER
HPF REAR
6V
0.2V
0dB 12dB
50Hz 250Hz 15Hz
50Hz
SUB
LEVEL
BASS EQ
LPF
SUBSONIC
D E S I G N E D A N D D E V E L O P E D I N T H E U N I T E D S TAT E S
BRIDGE
BRIDGE
SUB
RR
RR
RL
RL
FR
FR
FL
FL
+12V
REMOTE
SPEAKER OUTPUT
POWER INPUT
M O D E L / / P R X 8 0 0 . 5 V
GND
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