9
Trimode operation
Connecting the speaker for trimode operation - notes
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
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
10
Specifications
Model
GZNA 2800XII
RMS Power @ 4
Ω
CEA Standard CEA-2006-A
2 x 430W
(1% THD+N)
2 x 520W
(10% THD+N)
RMS Power @ 2
Ω
CEA Standard CEA-2006-A
2 x 800W
(1% THD+N)
2 x 950W
(10% THD+N)
RMS Power @ 1
Ω
CEA Standard CEA-2006-A
2 x 1200W
(1% THD+N)
2 x 1400W
(10% THD+N)
RMS Power @ 4
Ω
bridged
CEA Standard CEA-2006-A
1 x 1600W
(1% THD+N)
1 x 1900W
(10% THD+N)
RMS Power @ 2
Ω
bridged
CEA Standard CEA-2006-A
1 x 2400W
(1% THD+N)
1 x 2800W
(10% THD+N)
Damping factor
> 150
Signal to noise Ratio
> 90 dB
Lowpass
30 – 400 Hz / 300 – 4000 Hz
Highpass
5 – 400 Hz / 50 – 4000 Hz
Bandpass
5 Hz – 4000 Hz
Subsonic filter
5 Hz – 4000 Hz
Bass boost
0 ~ +12 dB
Bass boost frequency
30 Hz ~ 80 Hz
Phase shift
0 – 180°
Frequency response
10 Hz – 38 KHz
(± 1 dB)
Efficiency @ 4
Ω
~ 80 %
Input sensitivity
200 mV – 9 V
(± 5%)
Channel separation
50 dB
THD
< 0,10 %
Bass remote
9
At Lowpass- operation
Fuse
External ANL-fuse 200A
(included in delivery)
Dimensions
W x H x L mm
305 x 62 x 600
Dimensions
W x H x L inch
12 x 2.44 x 23.62“
