Audiotec Fischer Helix M FOUR


If you like to rev up your front and rear speakers, the M FOUR will be exactly the right ″tool″ to do so. With generously 100 Watts RMS per channel into both 4 Ohms and 2 Ohms load this amp will heat up your voice coils in no time despite its super-compact dimensions. On the other hand the M FOUR stays totally cool thanks to the highly efficient Class D design topology. 3-channel or 2-channel configurations are possible as well, delivering up to 2 x 200 Watts RMS of clean and undistorted output power. Needless to say that the M FOUR is equipped with a bunch of intelligent attributes like ″start-stop capability″ and our proprietary ″ADEP″ highlevel input so that it easily deals with all installation challenges of modern cars. Finally the extensive audio features will offer a sound quality at its best.

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Artikelnr: M FOUR Kategori:


’@ 4 Ohms 4 x 100 W RMS, 200 W Peak

@ 2 Ohms 4 x 100 W RMS, 200 W Peak

bridged @ 4 Ohms 2 x 200 W RMS, 2×400 W Peak

Amplifier technology Class D

Inputs 4 x RCA

4 x Highlevel speaker input

1 x Remote In

Input sensitivity RCA 0.5 – 6 Volts

Highlevel input sensitivity 1.3 – 13 Volts

Input impedance RCA 20 kOhms

Input impedance highlevel 13 Ohms

Outputs 4 x Speaker output

Frequency response 10 Hz – 30 000 Hz

Highpass 15 Hz – 4000 Hz adjustable

Lowpass 40 Hz – 4000 Hz adjustable

Bandpass 15 Hz – 4000 Hz adjustable

Slope high- / lowpass 12 dB/Oct.

Signal-to-noise ratio analog input 98 dB (A-weighted)

Distortion (THD) 0.05 %

Damping factor 100

Operating voltage 10.5 – 16 Volts (max. 5 sec. down to 6 Volts)

Idle current 1,100 mA

Fuse 2 x 30 A Maxi-fuse (APX)

Start-Stop capability

Highlevel input with automatic turn on function

Advanced Diagnostics Error Protection (ADEP)

Dimensions (H x W x D) 50 x 230 x 154 mm

Mer information

Vikt 7 kg







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