Ground Zero RADIOACTIVE GZRA MICRO FOUR, Owner'S Manual

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Specifications
Model GZRA MICRO FOUR
Type 4 Channel Fullrange Class D
RMS Power @ 4 / 2 Ω
CEA Standard CEA-2006-A
4 x 60 W / 4 x 100 W (1% THD+N)
RMS Power @ 4
Ω
bridge mode
CEA Standard CEA-2006-A
2 x 200 W (1% THD+N)
2 x 250 W (10% THD+N)
Damping factor > 100
Lowpass 30 Hz – 400 Hz
Highpass 30 Hz – 400 Hz
Frequency response 5 Hz – 38 kHz (± 1 dB)
Input sensitivity 200 mV – 5 V (± 5%)
Fuse 25A
Min Power and GND Wire 8 mm² / 8 AWG
Dimensions
W x H x L mm
75 x 44 x 190
Dimensions
W x H x L inch
2.95“ x 1.73“ x 7.48“
Trouble shooting guide
Symptoms Check Points Cure
No sound
Is the POWER LED illuminated?
Check fuses in amplifier.
Be sure remote lead is connected.
Check signal leads.
Check again control.
Check tuner/deck volume level.
Is the diagnostic LED
illuminated? Check for speaker short or amplifier
overheating
Amp not switching on
No power to the amplifier Check power wire or connections
No power to remote wire with
receiver on
Check connections to radio
No sound in one channel
Check speaker leads Inspect for short circuit or an open connection
Check audio leads
Reverse left and right RCA inputs to determine
if it is occurring before the amp
Amp turning off at medium /
high volume
Check speaker load impedance
Check the nominal load impedance at the
amplifier is equal to or greater than 2 ohms.
(If you use an ohm meter to check speaker
resistance, please remember that DC resistance
and AC impedance may not be the same.)
Protection LED is on
Temperature shut down Turn radio volume down
Speaker wires short Separate speaker wires and insulate