HELIX 201 X-Over
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.
Specifications
| Power RMS ≤ 1% THD+N @ 14.4 V | |
|---|---|
| - @ 4 Ohms | 1 x 250 Watts |
| - @ 2 Ohms | 1 x 450 Watts |
| - @ 1 Ohm | 1 x 750 Watts* |
| - bridged @ 4 Ohms | - |
| - bridged @ 2 Ohms | - |
| Max. output power | Up to 850 Watts RMS @ 1 Ohm |
| Amplifier technology | Class D |
| Inputs | 1 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: 3 - 32 Volts |
| Input impedance | RCA / Cinch: 8 kOhms Highlevel: 9 - 33 Ohms |
| Outputs | 1 x Speaker output |
| Output voltage RCA / Cinch | - |
| Signal converter for digital input | - |
| Frequency response | 10 Hz - 250 Hz |
| Bass boost | - |
| Highpass | - |
| Lowpass | 50 Hz - 250 Hz adjustable |
| Bandpass | - |
| Subsonic | 10 Hz - 50 Hz adjustable |
| Phase | 0° - 180° adjustable |
| Slope high- / lowpass | Lowpass: 12 dB/Oct. |
| Slope subsonic | 12 dB/Oct. |
| Slope subsonic / lowpass | - |
| Signal-to-noise ratio (A-weighted) | 114 dB @ full power |
| Distortion (THD @ 1 kHz, 1 W into 4 Ohms) | - |
| Distortion (THD+N @ 1 kHz, 1 W into 4 Ohms) | - |
| Distortion (THD @ 100 Hz, 1 W into 4 Ohms) | < 0.003% |
| Distortion (THD+N @ 100 Hz, 1 W into 4 Ohms) | < 0.02 % |
| Damping factor | 200 |
| Operating voltage | 10.5 - 16 Volts (max. 5 sec. down to 6 Volts) |
| Idle current | 1,100 mA |
| Fuse | 2 x 30 A LP-Mini-fuse (APS) |
| Power rating | DC 12 V ⎓ 80 A max. |
| Operating temperature range | -40 °C to +70 °C |
| Additional features | Active, adjustable crossover, Start-Stop capability, highlevel input with automatic turn-on function, ADEP.3 |
| Dimensions (H x W x D) | 41.5 x 248 x 118 mm / 1.63 x 9.76 x 4.65” |
Installed by Audio Edge
We sell every product as part of a system designed for your vehicle — consultation, installation, and tuning included. Tell us what you drive and we’ll tell you what this can do in your car.
Proof
Used in these builds
Let’s talk about your car
Tell us what you drive and what you want it to sound like. We’ll come back with a plan — gear, fabrication, timeline, and a real number.