D FOUR

Helix

Discontinued

Your price:
€ 234,00
Price per single item (VAT included)
Amplifier Type
4 channels
Amplifier Class
AB
RMS Power 4 Ohm
4x65 Watt
RMS Power 2 Ohm
4x90 Watt
RMS Power Dual Mono 4 Ohm
2x180 Watt
Crossover
Yes
S/PDIF Digital Input
No
High Level Input
YES
Signal-to-Noise Ratio
108 dB S/N
Total Harmonic Distortion
0,02 % THD
Size
320 x 230 x 53 mm

Helix D FOUR 4-channel amplifier from the new D series, modest price and pure Helix quality! Excellent power ratings, measurement data and many other functions ensure clear and rich sound experience.

Powerful sound reproduction: active crossover with highpass filter, lowpass filter, bandpass and bass boost, intelligent high-level input that incorporates Audiotec Fischer's ADEP circuit. It is possible to add an optional remote volume control for amplification channels C and D which is very useful if these outputs are activating a subwoofer.

The elegant design not only affirms the amplifier's heritage, but also allows for easy integration into your car thanks to its compact dimensions. This is sound-tuning at its best!

Helix D FOUR main features:

4-channel high and low input

Intelligent high level 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

Input sensitivity of maximum level up to 14 Volt max.

Cable remote control for volume adjustment of channels C & D available optionally

Massive aluminum heat sink for best cooling conditions

The latest generation of OE car radios incorporates sophisticated diagnostic capabilities for connected speakers. If a common amplifier is connected, error messages and loss of specific features (for example the fader function) appear quite often, but not with the DURURO.

The new ADEP circuit (Advanced Diagnostics Error Protection) avoids all these problems without unnecessarily loading the speaker outputs of the OE radio at high volumes.

Helix D FOUR technical specifications:

RMS / max output power.

- @ 4 Ohm 4 x 65/130 Watt

- @ 2 Ohm 4 x 90/180 Watt

- Connected at 4 Ohm 2 x 180/360 Watt

Class AB

Inputs 4 x RCA / Cinch

4 x High-level speaker input

1 x Remote In

1 x Remote control input

RCA / Cinch input sensitivity 0.5 - 6 Volt

Highlevel 1 - 14 Volt

RCA / Cinch input impedance 30 kOhms

High level input impedance 12 Ohm

Outputs 4 x Speaker output

Frequency response 10 Hz - 50,000 Hz

Bass boost from 0 to 12 dB / 45 Hz

Highpass 15 Hz - 4000 Hz adjustable

Lowpass 40 Hz - 4000 Hz adjustable

Bandpass 15 Hz - 4000 Hz adjustable

Highpass / lowpass slope 12 dB / oct.

Analog input with signal-to-noise ratio 108 dB (weighted to axis)

Distortion (THD) 0.02%

Damping factor 65

Operating voltage 9.6 - 16 Volt

Idle current 1000 mA

Fuse 2 x 25 A Maxi-fuse (APX)

Additional functions Active and adjustable crossover, bass boost, input mode switch, high-level input with auto turn-on function and advanced diagnostic 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"

Manuale utente

n-20180726124658-ba-helix-d-four.pdf
Discontinued