Description
HELIX D FOUR
The new entry into the HELIX world! The amplifiers of the D series are solely modest with respect to pricing. Everything else is thoroughly pure HELIX quality without any compromises. Loads of power, excellent measurement data and a whole bunch of features ensure a pristine and crispy sound experience!
Absolutely nothing has been missed for powerful sound reproduction - the active crossover with highpass filter, lowpass filter, bandpass and bass boost are equally as self-evident as the intelligent highlevel input that incorporates Audiotec Fischer´s proprietary ADEP circuit. It is even possible to add an optional volume remote control for the amp channels C and D which is very useful if those outputs are firing a subwoofer.
The elegant design not only states right from the beginning the amp's heritage but also allows an easy integration into your car thanks to its compact dimensions. That is sound-tuning at its best!
Features
- 4-channel high- and lowlevel input
- Smart highlevel input with ADEP circuit (Advanced Diagnostics Error Protection) and Auto Turn-On function
- Fully active crossover with highpass, lowpass, bandpass and bass boost
- Extremely stable MOSFET power supply
- “Input mode” switch for flexible input signal routing
- Highlevel input sensitivity up to 14 Volts max.
- Cable remote control for volume adjustment of the channels C & D optionally available
- Massive aluminum heatsink for best cooling conditions
Technical data
- Output power RMS ≤ 1% THD+N
- @ 4 Ohms 4 x 65 Watts
- @ 2 Ohms 4 x 90 Watts
- bridged @ 4 Ohms 2 x 180 Watts
- Max. output power per channel* Up to 160 Watts RMS @ 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
- 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
- Slope high- / lowpass 12 dB/Oct.
- Signal-to-noise ratio analog input 108 dB (A-weighted)
- Distortion (THD) 0.02 %
- Damping factor 65
- Operating voltage 9.6 - 16 Volts
- Idle current 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”
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