Audiotec Fischer Helix H 400X Buku Petunjuk - Halaman 7
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16 - 17 Mono/Stereo selector
For switching the amplifier into 4-channel operation mode both
switches must be in stereo position (position 1). To use the amp
in 3-channel mode (front / sub), the front channel has to be set
in stereo and the sub channel to mono (position 2).
Warning:
The impedance of the woofer in bridged mode must not be lower
than 4 Ohms!
18 Speaker terminals for channels A and B
To connect the speaker cables.
19 Speaker terminals for channels C and D
To connect the speaker cables.
Never connect the speaker wires to the chassis of the vehicle.
This can destroy your amplifier. All speaker systems must be con-
nencted in-phase, this means plus to plus and minus to minus.
The plus pole is normally marked on the speaker. In addition, the
amplifire can operate channels A and B as well as C and D in
stereo or mono mode (bridged).
The impedance per channel should not be lower than 2 Ohms.
20 Frequency level control for highpass of CH A and B
Control for the adjustment of the crossover frequency from 15Hz
to 4 kHz.
21 Frequency level control for lowpass of CH A and B
Control for the adjustment of the crossover frequency from 15Hz
to 4 kHz.
22 Frequency level control for highpass of CH C and D
Control for the adjustment of the crossover frequency from 15Hz
to 4 kHz.
23 Frequency level control for lowpass of CH C and D
Control for the adjustment of the crossover frequency from 15Hz
to 4 kHz.
24 CPS - colour protection system
The LEDs show the operation status of the amp. Green=O.K.;
Yellow=the speakers wires are shorted to ground; Red=overhea-
ted. If the amp shuts off due to overheating it will take some
time (depending on the outside temperature) until it switches on
again.
www.audiotec-fischer.com
TECHNICAL DATA PRECISION P400
Cont. power rating at 4 Ohms per channel . . . . . . . . . . . . . . . . . . . . . . . 4 x 70/140 Watt RMS/Music
Cont. power rating at 2 Ohms per channel
Cont. power rating bridged at 2 Ohms per channel
Frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Hz - 20 000 Hz
Highpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Hz - 4 kHz adjustable
Lowpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Hz - 4 kHz adjustable
Bandpass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Hz - 4 kHz adjustable
Total harmonic distortion (THD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < 0,009%
Signal to noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 100 dB
Damping factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 300
Input impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 kOhms
Input sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0,7 - 8,0 V
Dimensions (H x W x D) mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31,5 x 200 x 336
. . . . . . . . . . . . . . . . . . . . . . 4 x 125/250 Watt RMS/Music
. . . . . . . . . . . . . . . . 2 x 250/500 Watt RMS/Music
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