<p>HELIX M FOUR – 24V Edition<br>If you like to rev up your front and rear speakers, the M FOUR – 24V Edition 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 – 24V Edition 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.<br><br>Needless to say that the M FOUR – 24V Edition 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.<br><br>Features<br>Small footprint Class D amplifier with high output power of 100 Watts RMS @ 4 and 2 Ohms load<br>Start-Stop capability down to 12V supply voltage<br>Smart highlevel input with ADEP circuit (Advanced Diagnostics Error Protection) and Auto Turn-On function<br>Integrated, active crossover with highpass, lowpass and bandpass<br>“Input mode” switch for flexible input signal routing<br>SMD (Surface Mounted Device) manufacturing technology combines minimum space requirement with maximum reliability<br>Exclusive, extremely compact and clean design with illuminated HELIX-logo and low heat dissipation thanks to extraordinary efficiency<br>Special features:<br>Smart highlevel input<br>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 – 24V Edition.<br>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.<br><br>Start-Stop capability<br>The switched power supply of the HELIX M FOUR – 24V Edition assures operation even if the battery’s voltage drops down to 12 Volts during engine crank.</p>

TECHNICAL DATA

Output power RMS ≤ 1% THD+N
– @ 4 Ohms 4 x 100 Watts
– @ 2 Ohms 4 x 100 Watts
– @ 1 Ohm –
– bridged @ 4 Ohms 2 x 200 Watts
– bridged @ 2 Ohms –
Max. output power per channel* Up to 135 Watts RMS @ 4 / 2 Ohms
Amplifier technology Class D
Inputs 4 x RCA / Cinch
4 x Highlevel speaker input
1 x Remote In
Input sensitivity RCA / Cinch 0.5 – 6 Volts
Highlevel 1.3 – 13 Volts
Input impedance RCA / Cinch 20 kOhms
Input impedance highlevel 9 – 33 Ohms
Outputs 4 x Speaker output
Output voltage RCA / Cinch –
Signal converter for digital input –
Frequency response 10 Hz – 30,000 Hz
Bass boost –
Highpass 15 Hz – 4,000 Hz adjustable
Lowpass 40 Hz – 4,000 Hz adjustable
Bandpass 15 Hz – 4,000 Hz adjustable
Subsonic –
Phase –
Slope high- / lowpass 12 dB/Oct.
Slope subsonic / lowpass –
Signal-to-noise ratio digital input –
Signal-to-noise ratio analog input 98 dB (A-weighted)
Distortion (THD) 0.05 %
Damping factor 100
Operating voltage 18 – 36 Volts (max. 5 sec. down to 12 Volts)
Idle current 550 mA
Fuse 2 x 15 A Maxi-fuse (APX)
Power rating DC 24 V ⎓ 25 A max.
Additional features Active, 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”