Small, efficient and uncompromisingly stable - the M ONE X 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 X a perfect partner for 2 x 2 Ohms subwoofers, where both voice coils are connected in parallel. And for even more output power, two M ONE X amplifiers can be combined to one single powerhouse – thanks to the TwinPower Link.

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 up to 1,180 Watts RMS output power @ 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 and Auto Turn-On function
• Integrated, active crossover with lowpass, bass boost, subsonicand phase control
• TwinPower Link for connecting two amplifiers in bridged mode
• Bass remote control for volume adjustment
• 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 X.
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 X assures operation even if the battery’s voltage drops down to 6 Volts during engine crank.

Technical data

Power RMS ≤ 1% THD+N
- @ 4 Ohms: Normal operation (One amplifier) 1 x 400 Watts | TwinPower Link (Two amplifiers) 1 x 1,400 Watts
- @ 2 Ohms: Normal operation (One amplifier) 1 x 700 Watts | TwinPower Link (Two amplifiers) 1 x 2,060 Watts
- @ 1 Ohm: Normal operation (One amplifier) 1 x 1,030 Watts
- bridged @ 4 Ohms
- bridged @ 2 Ohms

Max. output power per channel*: Up to 1,180 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: 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: 0 - 12 dB / 30 - 80 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: 150

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

Idle current: 800 mA

Fuse: 3 x 40 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 320 x 154 mm / 2.00 x 12.60 x 6.06”

* In typical applications as subwoofer amplifier