The physical size of the Helix M-series amplifiers is very small, although the feature list and power are large. This is possible thanks to advanced Class D technology.
A smart speaker-level input works even in new cars thanks to the ADEP circuit. And this amplifier won't turn off at every traffic light either, thanks to Start&Stop compatibility. The distribution filters have a wide enough range of adjustment to make distributions from subwoofer to tweeter and in between.
Despite their small size, Helix's M-Series offer plenty of power and, above all, the excellent sound quality Helix has been known for as a manufacturer for decades.
@ 4 Ohms 1 x 240 W RMS, 480 W Peak
@ 2 Ohms 1 x 410 W RMS, 820 W Peak
@ 1 Ohm1 x 600 W RMS, 1200 W peak
Amplifier technologyClass D
Inputs2 x RCA
2 x Highlevel speaker input
1 x Remote In
1 x Remote control input
Input sensitivity RCA 0.5 - 6 Volts
Highlevel input sensitivity 1.1 - 13 Volts
Input impedance RCA 20 kOhms
Input impedance highlevel 13 Ohms
Outputs1 x Speaker output
Frequency response10 Hz - 250 Hz
Bass boost0 - 12 dB @ 25 - 75 Hz
Lowpass50 Hz - 250 Hz adjustable
Bandpass10 Hz - 250 Hz adjustable
Subsonic10 Hz - 50 Hz adjustable
Phase0 - 180° adjustable
Slope subsonic & lowpass 12 / 24 dB/Oct.
Signal-to-noise ratio95 dB (A-weighted)
Distortion (THD)0.20 %
Damping factor100
Operating voltage10.5 - 16 Volts (max. 5 sec. down to 6 Volts)
Idle current650 mA
Fuse2 x 35 A Maxi-fuse (APX)
Start-Stop capability
Highlevel input with automatic turn on function
Advanced Diagnostics Error Protection (ADEP)
Bass volume cable remote control
Dimensions (H x W x D)50 x 230 x 154 mm.
