Helix C FOUR, replacement device, Oulu
A new plexiglass will be included. No original packaging
Helix C series amplifiers are pure HighEnd. The class A pre-stage supplies hand-selected Mosfet transistors, of which there are 32 in this 4-channel amplifier. The damping factor is more than 1000, with this amplifier the cone of any speaker remains perfectly under control. The regulated power supply keeps the power the same regardless of the car's system voltage in the operating range of 9-16 volts. The Start&Stop compatible terminal stays on even with a voltage of 6 volts, so that the music doesn't stop even at traffic lights.
With the optional HDM (Helix Digital input Module) module, the sound can be input to the amplifier directly in digital form.
Technical information: - Regulated DC-/DC power supply with start-stop Capability down to 6 volts supply voltage
- Ultra low-noise and ultra low-distortion driver stages in class A configuration
- Microprocessor-based monitoring of amplifier status including temperature-dependent fan
control
- Extremely stable output stages comprising eight hand-selected MOSFET transistors per channel
for exceptional sound quality & performance
- Integrated active crossover with highpass, lowpass and bandpass filters
- 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 HDM2 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
4 x 150 / 300 Watts @ 4 Ohms
4 x 220 / 440 Watts @ 2 Ohms
2 x 440 / 880 Watts @ 4 Ohms bridged
Inputs: 4 x RCA, 1 x Remote In
1 x Opt. Digital In (optional) Optional via HDM 2 module:
2 x Optical SPDIF (28 - 96 kHz)
Input sensitivity: RCA / RCA 1 - 8 Volt
Outputs: 4 x Speaker output
Frequency response 10 Hz to 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 highpass /lowpass 12 dB/Oct.
Signal-to-noise ratio 112 dB (A-weighted)
Distortion (THD) 0.007%
Damping factor 1.000
Additional features: Adjustable, active crossover,
HDMI slot, input mode
switch, Start-Stop Capability
Dimension: 37.1 x 430 x 240 mm / 1.46 x 16.93 x 9.45″.
