Helix C Four High End Four Channel Amplifier

SKU C Four
What’s in the Box:
  • 1 x High-end amplifier HELIX C FOUR
  • 2 x Allen key
  • 1 x Mounting material
  • 1 x Instruction manual
$

$2,499.00

Available in

Online & Store

In stock

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Made in Germany, HELIX produces the most sophisticated car Hi-Fi components with its decades of experience.

Helix
$2,499.00
$2,499.00

The C FOUR is a high-end 4-channel amplifier that has been designed down to the last detail for ultimate sound quality.

The C FOUR demonstrates the perfect transition to the digital era. The HDM 2 accepts digital audio signals up to 96 kHz sampling rate via its two optical inputs, which are then transformed back to the analog domain by cutting-edge BurrBrown D/A converters with 32 Bit resolution.

Main Features:

 

  • Extremely broadband Class AB amplifier with eight selected MOSFET transistors per channel for exceptional sound quality – ideal for High-Resolution audio
  • Ultra low-noise and distortion-free power amp drivers in Class A technology
  • Enormous damping factor of 1,000 @ 4 Ohms for perfect speaker control
  • Optionally available HELIX Digital Input Module (HDM) to extend the amplifier with two optical digital inputs in SPDIF format
  • Integrated, active crossover with highpass, lowpass and bandpass
  • Regulated DC / DC switching power supply with Start-Stop capability down to 6V supply voltage
  • Microprocessor-based monitoring of amplifier status including temperature-dependent fan control
  • Input Mode switch for flexible routing of the input signals
  • Cutting-edge BurrBrown D/A converters with 32 Bit resolution in combination with the optional HDM 2 module
  • Massive 24-carat gold-plated power and speaker terminals
  • Quad-layer PCB with extra-solid 70μ copper traces for lowest possible losses and SMD (Surface Mounted Device) manufacturing technology
  • Audiophile sound quality combined with impressive output power
2

Special Features:

 

  • Start-Stop capability – The switched power supply of the HELIX C FOUR assures operation even if the battery’s voltage drops down to 6 Volts during engine crank.
  • High-Resolution audio – The extremely broadband audio bandwidth of the amplifier ensures a lossless audio reproduction of High-Resolution audio content to provide the best possible sound in studio quality.

Specifications

Dimensions
N/A
cable type

Subwoofer

availability

Online, Store

colours

Black

length

3m, 5m, 8m, 12m

Model

Helix C Four

type

Accessory

channels

4

Output power RMS / max.

@ 4 Ohms: 4 x 150 / 300 Watts
@ 2 Ohms: 4 x 220 / 440 Watts
bridged @ 4 Ohms: 2 x 440 / 880 Watts

Max. output power per channel*

Up to 250 Watts RMS @ 2 Ohms

Amplifier technology

Class AB

inputs

4 x RCA / Cinch 1 x Remote In Optional via HDM 2 module: 2 x Optical SPDIF (28 – 96 kHz)

Input sensitivity

RCA / Cinch 1 – 8 Volts

Input impedance RCA / Cinch

7.5 kOhms

outputs

4 x Speaker output

frequency response

10 Hz – 80,000 Hz

Highpass

15 Hz – 4,000 Hz adjustable

Lowpass

15 Hz – 4,000 Hz adjustable

Bandpass

15 Hz – 4,000 Hz adjustable

Slope high / lowpass

12 dB/Oct.

Signal to noise ratio analog input

112 dB (A-weighted)

Distortion (THD)

< 0.007 %

Damping factor

> 1000

operating voltage

9 – 16 Volts (max. 5 sec. down to 6 Volts)

Idle current

2400 mA

Fuse

3 x 30 A LP-Mini-fuse (APS)

Additional features

Active, adjustable crossover, HDM slot, input mode switch, High-Resolution audio, Start-Stop capability

Dimensions (H x W x D)

37.1 x 430 x 240 mm /1.46 x 16.93 x 9.45″

The C FOUR is a high-end 4-channel amplifier that has been designed down to the last detail for ultimate sound quality.

The C FOUR demonstrates the perfect transition to the digital era. The HDM 2 accepts digital audio signals up to 96 kHz sampling rate via its two optical inputs, which are then transformed back to the analog domain by cutting-edge BurrBrown D/A converters with 32 Bit resolution.

Main Features:

 

  • Extremely broadband Class AB amplifier with eight selected MOSFET transistors per channel for exceptional sound quality – ideal for High-Resolution audio
  • Ultra low-noise and distortion-free power amp drivers in Class A technology
  • Enormous damping factor of 1,000 @ 4 Ohms for perfect speaker control
  • Optionally available HELIX Digital Input Module (HDM) to extend the amplifier with two optical digital inputs in SPDIF format
  • Integrated, active crossover with highpass, lowpass and bandpass
  • Regulated DC / DC switching power supply with Start-Stop capability down to 6V supply voltage
  • Microprocessor-based monitoring of amplifier status including temperature-dependent fan control
  • Input Mode switch for flexible routing of the input signals
  • Cutting-edge BurrBrown D/A converters with 32 Bit resolution in combination with the optional HDM 2 module
  • Massive 24-carat gold-plated power and speaker terminals
  • Quad-layer PCB with extra-solid 70μ copper traces for lowest possible losses and SMD (Surface Mounted Device) manufacturing technology
  • Audiophile sound quality combined with impressive output power
2

Special Features:

 

  • Start-Stop capability – The switched power supply of the HELIX C FOUR assures operation even if the battery’s voltage drops down to 6 Volts during engine crank.
  • High-Resolution audio – The extremely broadband audio bandwidth of the amplifier ensures a lossless audio reproduction of High-Resolution audio content to provide the best possible sound in studio quality.

Specifications

Dimensions
N/A
cable type

Subwoofer

availability

Online, Store

colours

Black

length

3m, 5m, 8m, 12m

Model

Helix C Four

type

Accessory

channels

4

Output power RMS / max.

@ 4 Ohms: 4 x 150 / 300 Watts
@ 2 Ohms: 4 x 220 / 440 Watts
bridged @ 4 Ohms: 2 x 440 / 880 Watts

Max. output power per channel*

Up to 250 Watts RMS @ 2 Ohms

Amplifier technology

Class AB

inputs

4 x RCA / Cinch 1 x Remote In Optional via HDM 2 module: 2 x Optical SPDIF (28 – 96 kHz)

Input sensitivity

RCA / Cinch 1 – 8 Volts

Input impedance RCA / Cinch

7.5 kOhms

outputs

4 x Speaker output

frequency response

10 Hz – 80,000 Hz

Highpass

15 Hz – 4,000 Hz adjustable

Lowpass

15 Hz – 4,000 Hz adjustable

Bandpass

15 Hz – 4,000 Hz adjustable

Slope high / lowpass

12 dB/Oct.

Signal to noise ratio analog input

112 dB (A-weighted)

Distortion (THD)

< 0.007 %

Damping factor

> 1000

operating voltage

9 – 16 Volts (max. 5 sec. down to 6 Volts)

Idle current

2400 mA

Fuse

3 x 30 A LP-Mini-fuse (APS)

Additional features

Active, adjustable crossover, HDM slot, input mode switch, High-Resolution audio, Start-Stop capability

Dimensions (H x W x D)

37.1 x 430 x 240 mm /1.46 x 16.93 x 9.45″