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Helix D Four
Product Code: Helix D Four
Availability: In Stock
Availability: In Stock
£199.99
Helix D Four 4 Channel Amp 720W Max
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!
Core 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
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 appears
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.
Technical Specs
| 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 |
| 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” |
