HELIX M ONE - Small footprint 1-channel subwoofer amplifier with integrated active crossover and 1 Ohm stability
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.
Features
- 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
- 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
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.
Technical data
| Output 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 @ 4 Ohms | - |
| - bridged @ 2 Ohms | - |
| Max. output power per channel* | Up to 720 Watts RMS @ 1 Ohm |
| Amplifier technology | Class D |
| Inputs | 2 x RCA / Cinch 2 x Highlevel speaker input 1 x Remote In 1 x Remote control input |
| Input sensitivity | RCA / Cinch 0.5 - 6 Volts Highlevel 1.1 - 13 Volts |
| Input impedance RCA / Cinch | 20 kOhms |
| Input impedance highlevel | 13 Ohms |
| Outputs | 1 x Speaker output |
| Output voltage RCA / Cinch | - |
| Signal converter for digital input | - |
| Frequency response | 10 Hz - 250 Hz |
| Bass boost | 0 - 12 dB / 25 - 75 Hz |
| Highpass | - |
| Lowpass | 50 Hz - 250 Hz adjustable |
| Bandpass | 10 Hz - 250 Hz adjustable |
| Subsonic | 10 Hz - 50 Hz adjustable |
| Phase | 0 - 180° adjustable |
| Slope high- / lowpass | - |
| Slope subsonic / lowpass | 12 / 24 dB/Oct. |
| Signal-to-noise ratio digital input | - |
| Signal-to-noise ratio analog input | 95 dB (A-weighted) |
| Distortion (THD) | 0.20 % |
| Damping factor | 100 |
| Operating voltage | 10.5 - 16 Volts (max. 5 sec. down to 6 Volts) |
| Idle current | 650 mA |
| Fuse | 2 x 35 A Maxi-fuse (APX) |
| Additional features | 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 |
| Dimensions (H x W x D) | 50 x 230 x 154 mm / 2.00 x 9.06 x 6.06” |
* In typical applications as subwoofer amplifier
Scope of delivery
1 x Cable remote control
1 x Mounting material
1 x Instruction manual
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