• Very compact Class D amplifier with high output power from 600 watts RMS to 1 ohm – ideally suited for combination with all 2 x 2 ohm subwoofers in parallel operation
  • Starting plugability down to 6V supply voltage
  • Intelligent high level input with ADEP (Advanced Diagnostics Error Protection) circuitry and auto power on
  • Integrated, active crossover with low pass, bass boost, subsonic and phase
  • Extremely stable power amp with high current power transistors and 1 ohm stability
  • Wired remote control for volume control
  • SMD (Surface Mounted Device) technology combines minimal space requirements with maximum reliability
  • Exclusive, very compact design with illuminated HELIX logo and low heat generation thanks to very high efficiency
SKU: HA11107 Category: Tag:


Small, efficient and unconditionally stable – the M ONE is a highly compact monoblock for subwoofer applications. Built in state-of-the-art Class D technology, this amp even controls speakers with only 1 ohm impedance under control. Its power delivery capability predestines it for the combination with 2 x 2 ohm subwoofers, in which both voice coils are connected in parallel.

This is accompanied by a comprehensive and extremely practical equipment that leaves nothing to be desired. And finally, thanks to the small dimensions of this mini power plant, there is always a slot.

Class D High Level Input RCA Input Remmote Control ready ADEP Active crossover Start-stop capability SMD Ultracompact dimensions


Special features:

Intelligent high-level input
Modern, factory-installed car radios are becoming increasingly intelligent in terms of diagnosing the connected speakers. If an amplifier is connected to the radio instead, it usually results in error messages up to the elimination of individual functions (such as faders). The new Advanced Diagnostics Error Protection (ADEP) circuitry eliminates all of these problems without unduly stressing the radio’s speaker outputs at high levels. 

Start Plugability
The power supply in the HELIX M ONE amplifier ensures the internal power supply even with short-term drops down to 6 volts. This ensures that the HELIX M ONE remains fully functional even when the engine is started.


Technical data

Power RMS / Max.
– @ 4 ohms 1 x 240/480 watts
– @ 2 ohms 1 x 410/820 watts
– @ 1 ohm 1 x 600 / 1,200 watts
– bridged to 4 ohms
– bridged to 2 ohms
amplifier technology Class D
inputs 2 x RCA 
2 x high level speaker input 
1 x remote In 
1 x remote control input
input sensitivity RCA 0.5 – 6 volts 
high 1.1 – 13 volts
Input impedance RCA 20 kOhm
Input impedance high level 13 ohms
outputs 1 x speaker output
Output voltage RCA – 
Signal converter for the digital input – 
frequency range 10 Hz – 250 Hz
Bass Boost 0-12 dB / 25-75 Hz
lowpass 50 Hz – 250 Hz adjustable
bandpass 10 Hz – 250 Hz adjustable
Subsonic 10 Hz – 50 Hz adjustable
phase 0 – 180 ° adjustable
Slope high / low pass – 
Slope Subsonic / Low Pass 12/24 dB / oct.
Signal-to-noise ratio digital input – 
Signal-to-noise ratio analog input 95 dB (A-weighted)
Harmonic distortion (THD) 0.20%
damping factor 100
operating voltage 10.5 – 16 volts (maximum 5 seconds down to 6 volts)
No-load current 650 mA
fuse 2 x 35 A maxi plug fuse (FK3)
Additional features Active, adjustable crossover, bass boost, 
phase shift, start-up capability, auto-engaged high level input and Advanced Diagnostics Error Protection (ADEP), bass level remote control 
Dimensions (H x W x D) 50 x 230 x 154 mm


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