Ground Zero GZTA 4125X-II24V, Owner'S Manual

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Trimode crossover
TRI MODE operation output allows a subwoofer to be operated in mono mode while the main speakers are playing in stereo. Leave the
crossover switch on “Full” position.
Use 100 volt, non-polar capacitors for a high pass crossover to filter out low frequencies and Air- core or
Ferrit- ore coils with a minimum diameter of 1 mm / 0.039” for the lowpass crossover to filter out high frequencies.
The capacitor and inductor values as written in the below table. The front and rear channels of this amplifier get this capability. Only the
rear left and right channels are shown on the following pictures.
Values for 6dB passive crossover
Specifications
Model GZTA 4125X-II24V
Type
4 Kanal Class A/B
RMS Power @ 4 Ω
(28 Volt)
4 x 90 W
(1% THD+N)
RMS Power @ 2
Ω
(28 Volt)
4 x 130 W
(1% THD+N)
RMS Power @ 4 Ω bridgemode
(28 Volt)
2 x 260 W
(1% THD+N)
2 x 320 W
(10% THD+N)
Damping factor > 100
Lowpass
40 Hz – 4000 Hz
Highpass
5 Hz – 500 Hz
Bass boost 0 ~ +12 dB (45 Hz) (CH 3 & 4)
Frequency response
5 Hz – 38 KHz (± 1 dB)
Input sensitivity
500 mV – 9 V (± 5%)
Operating voltage 20 – 32 Volt ( Remote on 10 – 32 Volt )
Fuse 2 x 20A
Dimensions
W x H x L mm
230 x 53 x 396 mm
Dimensions
W x H x L inch
9.04” x 2.09” x 15.59“
Frequency Inductor Capacitor
80 Hz 7,5 mH 470 uF
100 Hz 6,5 mH 330 uF
120 Hz 5,5 mH 370 uF
150 Hz 4 mH 220 uF