HELIX D FOUR

The new HELIX D amplifiers open new horizons in terms of price performance ratio. It is the first time that HELIX offers a lot of amplifier performance for such a low budget without neglecting the proved HELIX quality. Both power packs convince at first sight through high-quality processing in many details. The fine brushed aluminum heatsink and the stylish HELIX-logo make these models very attractive.

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 appears – but not with the D 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.

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Special features:

Output power RMS / max.
– @ 4 Ohms 4 x 65 / 130 Watts
– @ 2 Ohms 4 x 90 / 180 Watts
– @ 1 Ohm
– bridged @ 4 Ohms 2 x 180 / 360 Watts
– bridged @ 2 Ohms
Amplifier technology Class AB
Inputs 4 x RCA / Cinch
4 x Highlevel speaker input
1 x Remote In
1 x Remote control input
Input sensitivity RCA / Cinch 0.5 – 6 Volts
Highlevel 1 – 14 Volts
Input impedance RCA / Cinch 30 kOhms
Input impedance highlevel 12 Ohms
Outputs 4 x Speaker output
Output voltage RCA / Cinch
Signal converter for digital input
Frequency response 10 Hz – 50.000 Hz
Bass boost 0 – 12 dB / 45 Hz
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 108 dB (A-weighted)
Distortion (THD) 0.02 %
Damping factor 65
Operating voltage 9.6 – 16 Volts
Current draw 1000 mA
Fuse 2 x 25 A Maxi-fuse (APX)
Additional features Active, adjustable crossover, bass boost, input mode switch, highlevel input with automatic turn on function and Advanced Diagnostics Error Protection (ADEP), optional cable remote control
Dimensions (H x W x D) 53 x 320 x 230 mm /
2.09 x 12.60 x 9.06”