HELIX HXA 20 User Manual

Integrated active crossover of HXA 20
The HXA 20 has an integrated active crossover of 90 Hz/ 12 dB Oct. The operating
mode can be selected with the switch 10.
Only for HXA 20X:
The HXA 20X has an active adjustable crossover with a variable frequency range
from 15 Hz to 5000 Hz. To adjust the frequencies use switch 10 ( HP, Full range, LP )
and switch 11 ( 15 Hz - 1 kHz and 1 kHz - 5 kHz ) and the potentiometer 13. The
residual signal is applied to RCA connectors 17 and 18 where it can be used to conn-
nect an additional amplifier.
Example: If the chanels A and B are switched on Highpass 180 Hz, the frequencies
up to 180 Hz (Lowpass) are provided to the RCA connectors 17 and 18, e.g. to conn-
nect a subwoofer amplifier
In general: Amplifier highpass channel A + B
=RCA output 17 lowpass channel A
=RCA output 18 lowpass channel B
Amplifier lowpass channel A + B
=RCA output 17 highpass channel A
=RCA output 18 highpass channel B
11 Switch for selecting the frequencies range
With this switch the adjustment range of the potentiometer 13 can be selected from
15 Hz to 1 kHz and from 1 kHz to 5 kHz.
13 Frequency controller
Frequency adjustment controller for the channels A+B .
17 - 18 RCA outputs
The RCA outputs supply the residual signal for connecting an additional amplifier.
Important information!
Scale to adjust the frequencies at potentiometer 13.
Important!
Do not ground speaker output terminal to vehicle chassis.This can destroy your
amplifier. Please pay attention to connect all loudspeakers in proper phase, i.e.
plus to plus and minus to minus.
Attention!
If you need further informations, please take a look at our web-site
www.audiotec-fischer.com
Technical Specifications:
Cont. Power rating at 4 Ohm p. channel 2x60/80 Watts RMS/Max. Power
Cont. Power rating at 2 Ohm p. channel 2x90/125 Watts RMS/Max. Power
Cont. Power bridged into a 4 Ohm load 1x180/250 Watts RMS Max. Power
Frequency Response 20Hz-20kHz,+/-0,2dB
Total Harmonic Distortion (THD) <0,009%
TIM Distortion <0,016%
Signal to Noise Ratio >100dB
Input Impedance 10kOhm
Input Sensitivity 800 mV-8,5V
Fuse 15 Ampere
Dimensions (HxWxD) in mm 31,5x185x236
Weight net 1,8 kgs
HXA 20 Switchable Frequency Crossover Highpass/Lowpass 90Hz
and Full Range
HXA 20X Adjustable Crossover Frequency range 15Hz-5000Hz HP/LP
Hz
15
32
55
80
110
160
250
450
1K
1,3
1,5
Hz
1K
1,8
2,2
2,7
3,3
4K
5K
Switch 11 at Position
15kHz - 1kHz
Switch 11 at Position
1kHz - 5kHz
AUDIOTEC FISCHER GMBH
Gewerbegebiet Lake II · Huenegraeben 26 · D-57392 Schmallenberg
Tel.: ++49 2972 9788 0 · Fax: ++49 2972 9788 88
E-mail: info@audiotec-fischer.com · Internet: www.audiotec-fischer.com

HELIX HXA 20 Specifications