Audio amplifier Helix M ONE, 1200W, perfect for a subwoofer

Small, efficient and uncompromisingly stable - "M ONE" is a very compact monoblock for a subwoofer. Built with the latest Class D technology, this small amplifier can easily drive speakers with an impedance of 1 ohm. Its current capacity makes the M ONE the perfect partner for 2 x 2 Ohm subwoofers where both voice coils are connected in parallel.

• Power RMS/MAX:
• @ 4 Ohms 1 x 240 / 480 W
• @ 2 Ohms 1 x 410 / 820 W
• @ 1 Ohm 1 x 600 / 1,200 W
• Frequency range: 10 Hz - 250 Hz
• Sensitivity: 95 dB
• Damping factor: > 100
• Dimensions: 50 x 230 x 154 mm

• 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 high-level 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 requirements with maximum reliability
• Exclusive, extremely compact and clean design with illuminated HELIX-logo and low heat dissipation thanks to extraordinary efficiency

Special features:

• Smart high level 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 (eg fader function) appear quite often - 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 ensures operation even if the battery's voltage drops down to 6 Volts during engine cranking.

• 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 -
• Amplifier technology Class D
• Inputs:
  2 x RCA/Cinch
  2 x High-level speaker input
  1 x Remote In
  1 x Remote control input
• Input sensitivity RCA / RCA 0.5 - 6 Volts
• High level 1.1 - 13 Volts
• Input impedance RCA / RCA 20 kOhms
• Input impedance high level 13 Ohms
• Outputs 1 x Speaker output
• Output voltage RCA / RCA -
• 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, high-level 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

User Guide