Specifications; Troubleshooting Guide - Ground Zero GZRA 1.2500D Owner's Manual

Model
Type
RMS Power @ 4 Ω
CEA Standard CEA-2006-A
RMS Power @ 2 Ω
CEA Standard CEA-2006-A
RMS Power @ 1 Ω
CEA Standard CEA-2006-A
RMS Power @ 2Ω Linkmode
CEA Standard CEA-2006-A
Damping factor
Lowpass
Subsonic filter
Bass boost
Frequency response
Input sensitivity
Bass remote control
Fuse
Dimensions
W x H x L mm
Dimensions
W x H x L inch
Symptoms
No sound
Amp not switching on
No sound in one channel
Amp turning off at medium /
high volume
Protection LED is on

Specifications

Trouble shooting guide
Check Points
Is the POWER LED illuminated?
Is the diagnostic LED illuminated?
No power to the amplifier
No power to remote wire with receiver on
Check speaker leads
Check audio leads
Check speaker load impedance
Temperature shut down
Speaker wires short
GZRA 1.2500D
1 Channel Class D
1 x 750 W
(1% THD+N)
1 x 1000 W
(10% THD+N)
1 x 1400 W
(1% THD+N)
1 x 2000 W
(10% THD+N)
1 x 2200 W
(1% THD+N)
1 x 3000 W
(10% THD+N)
1 x 4400 W
(1% THD+N)
1 x 6000 W
(10% THD+N)
> 150
30 Hz – 250 Hz
10 Hz – 50 Hz
0 ~ +12 dB (45 Hz)
10 Hz – 250 Hz (± 3 dB)
200 mV – 9 V (± 5%)

External fuse 200A included
552 x 47 x 230
21.73" x 1.85" x 9.06"
Cure
Check fuses in amplifier.
Be sure remote lead is connected.
Check +12 Volt connection
Check ground connection
Check for speaker short or amplifier overheating
Check power wire or connections
Check connections to radio
Inspect for short circuit or an open connection
Reverse left and right RCA inputs to determine if it
is occurring before the amp
Be sure proper speaker load impedance
recommendations are observed
(If you use an ohm meter to check speaker
resistance, please remember that DC resistance
and AC impedance may not be the same.)
Turn radio volume down
Separate speaker wires and insulate
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