M ONE    定價NT$17800

Small footprint 1-channel subwoofer amplifier with integrated active crossover and 1 Ohm stability



Product Speclflcation



Small, efficient and uncompromisingly stable - the M ONE is a highly compact monoblock for subwoofer applications. Designed from latest Class D technology this tiny amp can easily control speakers with 1 Ohm impedance. Its current capability makes the M ONE a perfect partner for 2 x 2 Ohms subwoofers, where both voice coils are connected in parallel.


In addition a comprehensive and stunningly practical feature set leaves nothing to be desired. Last but not least installation will be a no-brainer due to the minimal dimensions.



  • Small footprint Class D amplifier with high output power of 600 Watts RMS @ 1 Ohm for easiest combination with all 2 x 2 Ohms subwoofers connected in parallel

  • Start-Stop capability down to 6V supply voltage

  • Smart highlevel input with ADEP circuit (Advanced Diagnostics Error Protection) and Auto Turn-On function

  • Integrated, active crossover with lowpass, bass boost, subsonic and phase control



Special features:

Smart highlevel input
The latest generation of OE car radios incorporates sophisticated possibilities of diagnosing the connected speakers. If a common amplifier will be hooked up failure messages and loss of specific features (e.g. fader function) quite often appear - but not with the M ONE.
The new ADEP circuit (Advanced Diagnostics Error Protection) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily.

Start-Stop capability
The switched power supply of the HELIX M ONE assures operation even if the battery’s voltage drops down to 6 Volts during engine crank.


  • Extremely stable output stage with high-current power transistors and 1 Ohm stability

  • Bass remote control for volume adjustment

  • SMD (Surface Mounted Device) manufacturing technology combines minimum space requirement with maximum reliability

  • Exclusive, extremely compact and clean design with illuminated HELIX-logo and low heat dissipation thanks to extraordinary efficiency​



Output power RMS / max. 

 @ 4 Ohms

 @ 2 Ohms

 @ 1 Ohm

 bridged @ 4 Ohms

 bridged @ 2 Ohms


Amplifier technology






Input sensitivity


Input impedance RCA / Cinch


Input impedance highlevel



Output voltage RCA / Cinch

Signal converter for digital input


Frequency response

Bass boost






Slope high- / lowpass


Distortion (THD)

Signal-to-noise ratio
Damping factor


Operating voltage

Idle current



Additional features






(H x W x D)


1 x 240 / 480 Watts

1 x 410 / 820 Watts

1 x 600 / 1,200 Watts


Class D


2 x RCA / Cinch
2 x Highlevel speaker input
1 x Remote In
1 x Remote control input


RCA / Cinch 0.5 - 6 Volts
Highlevel 1.1 - 13 Volts


20 kOhms


13 Ohms


1 x Speaker output




10 Hz - 250 Hz


0 - 12 dB / 25 - 75 Hz


50 Hz - 250 Hz adjustable

10 Hz - 250 Hz adjustable

10 Hz - 50 Hz adjustable

0 - 180° adjustable



95 dB (A-weighted)

0.20 %



10.5 - 16 Volts (max. 5 sec. down to 6 Volts)

650 mA

2 x 35 A Maxi-fuse (APX)


Active, adjustable crossover, bass boost, phase shift, Start-Stop capability, highlevel input with automatic turn on function and Advanced Diagnostics Error Protection (ADEP), bass volume cable remote control 


50 x 230 x 154 mm /
2.00 x 9.06 x 6.06”