HELIX M FOUR 4-Channel Amplifier

HELIX M FOUR

If you like to rev up your front and rear speakers, the M FOUR will be exactly the right "tool" to do so. With generously 100 Watts RMS per channel into both 4 Ohms and 2 Ohms load this amp will heat up your voice coils in no time despite its super-compact dimensions. On the other hand the M FOUR stays totally cool thanks to the highly efficient Class D design topology. 3-channel or 2-channel configurations are possible as well, delivering up to 2 x 200 Watts RMS of clean and undistorted output power.

Needless to say that the M FOUR is equipped with a bunch of intelligent attributes like "start-stop capability" and our proprietary "ADEP" highlevel input so that it easily deals with all installation challenges of modern cars. Finally the extensive audio features will offer a sound quality at its best.

Features

• Small footprint Class D amplifier with high output power of 100 Watts RMS @ 4 and 2 Ohms load

• 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 highpass, lowpass and bandpass

• “Input mode” switch for flexible input signal routing

• 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 FOUR.
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 FOUR assures operation even if the battery’s voltage drops down to 6 Volts during engine crank.

Technical data

Output power RMS / max. - @ 4 Ohms4 x 100 / 200 Watts- @ 2 Ohms4 x 100 / 200 Watts- @ 1 Ohm-- bridged @ 4 Ohms2 x 200 / 400 Watts- bridged @ 2 Ohms- Max. output power per channel*Up to 135 Watts RMS @ 2 OhmsAmplifier technologyClass DInputs4 x RCA / Cinch
4 x Highlevel speaker input
1 x Remote InInput sensitivityRCA / Cinch 0.5 - 6 Volts
Highlevel 1.3 - 13 VoltsInput impedance RCA / Cinch20 kOhmsInput impedance highlevel13 OhmsOutputs4 x Speaker outputOutput voltage RCA / Cinch- Signal converter for digital input- Frequency response10 Hz - 30,000 HzBass boost- Highpass15 Hz - 4,000 Hz adjustableLowpass40 Hz - 4,000 Hz adjustableBandpass15 Hz - 4,000 Hz adjustableSubsonic- Phase- Slope high- / lowpass12 dB/Oct.Slope subsonic / lowpass- Signal-to-noise ratio digital input- Signal-to-noise ratio analog input98 dB (A-weighted)Distortion (THD)0.05 %Damping factor100Operating voltage10.5 - 16 Volts (max. 5 sec. down to 6 Volts)Idle current1,100 mAFuse2 x 30 A Maxi-fuse (APX)Additional featuresActive, adjustable crossover, input mode switch, Start-Stop capability, highlevel input with automatic turn on function and Advanced Diagnostics Error Protection (ADEP)Dimensions (H x W x D)50 x 230 x 154 mm /
2.00 x 9.06 x 6.06”