Description
HELIX H 400X
The best of both worlds – extremely fast MOSFET driver circuits in Class A operation combined with enormously load-stable, power-potent “afterburners” in bipolar technology. This is the recipe for success for the particularly flat amplifiers, which, thanks to their sophisticated processor control, don’t get their feathers ruffled in any situation. Improved repeatedly over the years, these powerhouses with the characteristic and transparent enclosure covers have reached a sound level that is unrivalled, and not just in the value-for-money category.
Features
- Extremely stable amplifiers in an extraordinary shallow heatsink
- Unique Bipolar output transistor technology for unparalleled natural and warm sound experience
- Fastest drivers for lowest possible THD
- Processor-controlled technology for optimized operation
- Fully active crossover with highpass, lowpass and bandpass filter
- “Input mode” switch for flexible input signal routing
- RMI (Realmixed Input) for generating an optimised mono-summing signal from
the left and right channels - Smart protection circuits against overheating, over- and undervoltage, speaker short circuiting, low impedance and faulty connection
- 24 carat gold-plated solid connection terminals suitable for 25 mm? / gauge 4
- Completely made in Germany by using only selected components
Additional Information
Specification
Performance Specifications
HELIX H 400X
Output power RMS ≤ 1% THD+N @ 4 Ohms
4 x 70 Watts
Output power RMS ≤ 1% THD+N @ 2 Ohms
4 x 125 Watts
Output power RMS ≤ 1% THD+N bridged @ 4 Ohms
2 x 250 Watts
Amplifier technology
Class AB
Inputs
4 x RCA / Cinch, 1 x Remote In
Input sensitivity
RCA / Cinch 0.7 – 8 Volts
Input impedance RCA / Cinch
10 kOhms
Outputs
4 x Speaker output
Frequency response
20 Hz – 20,000 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
110 dB (A-weighted)
Distortion (THD)
< 0.009 %
Damping factor
> 300
Operating voltage
9 – 16 Volts
Idle current
2200 mA
Operating temperature range
-40° C to +70° C
Fuse
2 x 25 A LP-Mini-fuse (APS)
Additional features
Active, adjustable crossover, input mode switch, Colour Protection System
Product Data
Physical Specifications: HELIX H 400X
Dimensions (H x W x D): 31.5 x 200 x 336 mm / 1.24 x 7.87 x 13.23”
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Delivery Information
Next working day delivery if ordered before 12:00, unless item is special order.
Helix H 400X 4 Channel Amplifier
4 channel amplifier 4 x 70 / 140 Watts @ 4 Ohms
£599.99
Want it fitted?We can fit anything we sell at our Nottingham workshop.
HELIX H 400X
The best of both worlds – extremely fast MOSFET driver circuits in Class A operation combined with enormously load-stable, power-potent “afterburners” in bipolar technology. This is the recipe for success for the particularly flat amplifiers, which, thanks to their sophisticated processor control, don’t get their feathers ruffled in any situation. Improved repeatedly over the years, these powerhouses with the characteristic and transparent enclosure covers have reached a sound level that is unrivalled, and not just in the value-for-money category.
Features
- Extremely stable amplifiers in an extraordinary shallow heatsink
- Unique Bipolar output transistor technology for unparalleled natural and warm sound experience
- Fastest drivers for lowest possible THD
- Processor-controlled technology for optimized operation
- Fully active crossover with highpass, lowpass and bandpass filter
- “Input mode” switch for flexible input signal routing
- RMI (Realmixed Input) for generating an optimised mono-summing signal from
the left and right channels - Smart protection circuits against overheating, over- and undervoltage, speaker short circuiting, low impedance and faulty connection
- 24 carat gold-plated solid connection terminals suitable for 25 mm? / gauge 4
- Completely made in Germany by using only selected components
Performance Specifications
HELIX H 400X
Output power RMS ≤ 1% THD+N @ 4 Ohms
4 x 70 Watts
Output power RMS ≤ 1% THD+N @ 2 Ohms
4 x 125 Watts
Output power RMS ≤ 1% THD+N bridged @ 4 Ohms
2 x 250 Watts
Amplifier technology
Class AB
Inputs
4 x RCA / Cinch, 1 x Remote In
Input sensitivity
RCA / Cinch 0.7 – 8 Volts
Input impedance RCA / Cinch
10 kOhms
Outputs
4 x Speaker output
Frequency response
20 Hz – 20,000 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
110 dB (A-weighted)
Distortion (THD)
< 0.009 %
Damping factor
> 300
Operating voltage
9 – 16 Volts
Idle current
2200 mA
Operating temperature range
-40° C to +70° C
Fuse
2 x 25 A LP-Mini-fuse (APS)
Additional features
Active, adjustable crossover, input mode switch, Colour Protection System
Physical Specifications
HELIX H 400X
Dimensions (H x W x D)
31.5 x 200 x 336 mm / 1.24 x 7.87 x 13.23”
Next working day delivery if ordered before 12:00, unless item is special order.