Description
Helix Amplify 204 Direct
The Helix Amplify 204 Direct is a very compact 4 channel amplifier from the Amplify 2-Series, made to be fed by an external DSP or DSP amplifier. It delivers 4 x 100 W RMS at 4 Ohms, 4 x 190 W RMS at 2 Ohms or 2 x 380 W RMS bridged at 4 Ohms, so it works as a classic 4 channel, a 3 channel with a subwoofer on the bridged pair, or a bridged 2 channel amplifier.
“Direct” means Helix’s DirectDSP inputs. There is no conventional input filtering, no crossover and no bass boost in the signal path. Your DSP does all the filtering and tuning, and the amplifier simply amplifies that signal as cleanly and transparently as possible. A quality gain stage and clipping LED make level setting easy, and a stereo/mono switch on each stereo input allows bridged operation from a single RCA signal without a Y-adaptor.
It runs from a normal 12 V supply (10.5 to 16 V), rides through start-stop dips down to 6 V for up to 5 seconds, and its removable top cover keeps the install neat.
Features
- 4 channel Class D amplifier, fully bridgeable
- 4 x 100 W RMS at 4 Ohms, 4 x 190 W RMS at 2 Ohms, 2 x 380 W RMS bridged at 4 Ohms
- DirectDSP inputs made for Helix DSPs, no input filtering in the signal path
- Stereo/mono switch per stereo input for bridged operation from a single RCA signal
- Clipping LED for fast, accurate gain adjustment
- Start-stop capable, holds up for up to 5 seconds down to 6 V
- Very compact 248 x 118 mm footprint with removable top cover
Full technical data is on the Product Specification and Product Data tabs.
Additional Information
Specification
Performance Specifications
Helix Amplify 204 Direct
Channels
4 (bridgeable)
Power RMS @ 4 Ohms (≤ 1% THD+N, 14.4 V)
4 x 100 Watts
Power RMS @ 2 Ohms (≤ 1% THD+N, 14.4 V)
4 x 190 Watts
Power RMS bridged @ 4 Ohms (≤ 1% THD+N, 14.4 V)
2 x 380 Watts
Max. output power per channel (one channel driven, ≤ 10% THD+N @ 14.4 V)
Up to 240 Watts RMS @ 2 Ohms; up to 480 Watts RMS @ 4 Ohms bridged
Amplifier technology
Class D
Inputs
4 x RCA / Cinch (DirectDSP), 1 x Remote In
Input sensitivity
1 – 8 Volts
Input impedance
67 kOhms
Outputs
4 x Speaker output
Frequency response
10 Hz – 20,000 Hz
Signal-to-noise ratio (A-weighted)
99 dB @ full power
Distortion (THD @ 1 kHz, 1 W into 4 Ohms)
< 0.012 %
Distortion (THD+N @ 1 kHz, 1 W into 4 Ohms)
< 0.02 %
Damping factor
70
Operating voltage
10.5 – 16 Volts (max. 5 sec. down to 6 Volts)
Idle current
1,100 mA
Fuse
2 x 30 A LP-Mini-fuse (APS)
Power rating
12 V DC, 70 A max.
Operating temperature range
-40 °C to +70 °C
Additional features
Start-Stop capability, Clipping LED, DirectDSP inputs
Order number
AC20410
Product Data
Physical Specifications: Helix Amplify 204 Direct
Dimensions (H x W x D): 41.5 x 248 x 118 mm / 1.63 x 9.76 x 4.65″
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Delivery Information
Next working day delivery if ordered before 12:00, unless item is special order.
Helix Amplify 204 Direct 4 Channel Amplifier
Helix Amplify 204 Direct, part number AC20410. A very compact, bridgeable 4 channel Class D amplifier with DirectDSP inputs, delivering 4 x 100 W RMS at 4 Ohms or 4 x 190 W RMS at 2 Ohms.
£204.99
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Helix Amplify 204 Direct
The Helix Amplify 204 Direct is a very compact 4 channel amplifier from the Amplify 2-Series, made to be fed by an external DSP or DSP amplifier. It delivers 4 x 100 W RMS at 4 Ohms, 4 x 190 W RMS at 2 Ohms or 2 x 380 W RMS bridged at 4 Ohms, so it works as a classic 4 channel, a 3 channel with a subwoofer on the bridged pair, or a bridged 2 channel amplifier.
“Direct” means Helix’s DirectDSP inputs. There is no conventional input filtering, no crossover and no bass boost in the signal path. Your DSP does all the filtering and tuning, and the amplifier simply amplifies that signal as cleanly and transparently as possible. A quality gain stage and clipping LED make level setting easy, and a stereo/mono switch on each stereo input allows bridged operation from a single RCA signal without a Y-adaptor.
It runs from a normal 12 V supply (10.5 to 16 V), rides through start-stop dips down to 6 V for up to 5 seconds, and its removable top cover keeps the install neat.
Features
- 4 channel Class D amplifier, fully bridgeable
- 4 x 100 W RMS at 4 Ohms, 4 x 190 W RMS at 2 Ohms, 2 x 380 W RMS bridged at 4 Ohms
- DirectDSP inputs made for Helix DSPs, no input filtering in the signal path
- Stereo/mono switch per stereo input for bridged operation from a single RCA signal
- Clipping LED for fast, accurate gain adjustment
- Start-stop capable, holds up for up to 5 seconds down to 6 V
- Very compact 248 x 118 mm footprint with removable top cover
Full technical data is on the Product Specification and Product Data tabs.
Performance Specifications
Helix Amplify 204 Direct
Channels
4 (bridgeable)
Power RMS @ 4 Ohms (≤ 1% THD+N, 14.4 V)
4 x 100 Watts
Power RMS @ 2 Ohms (≤ 1% THD+N, 14.4 V)
4 x 190 Watts
Power RMS bridged @ 4 Ohms (≤ 1% THD+N, 14.4 V)
2 x 380 Watts
Max. output power per channel (one channel driven, ≤ 10% THD+N @ 14.4 V)
Up to 240 Watts RMS @ 2 Ohms; up to 480 Watts RMS @ 4 Ohms bridged
Amplifier technology
Class D
Inputs
4 x RCA / Cinch (DirectDSP), 1 x Remote In
Input sensitivity
1 – 8 Volts
Input impedance
67 kOhms
Outputs
4 x Speaker output
Frequency response
10 Hz – 20,000 Hz
Signal-to-noise ratio (A-weighted)
99 dB @ full power
Distortion (THD @ 1 kHz, 1 W into 4 Ohms)
< 0.012 %
Distortion (THD+N @ 1 kHz, 1 W into 4 Ohms)
< 0.02 %
Damping factor
70
Operating voltage
10.5 – 16 Volts (max. 5 sec. down to 6 Volts)
Idle current
1,100 mA
Fuse
2 x 30 A LP-Mini-fuse (APS)
Power rating
12 V DC, 70 A max.
Operating temperature range
-40 °C to +70 °C
Additional features
Start-Stop capability, Clipping LED, DirectDSP inputs
Order number
AC20410
Physical Specifications
Helix Amplify 204 Direct
Dimensions (H x W x D)
41.5 x 248 x 118 mm / 1.63 x 9.76 x 4.65″
Next working day delivery if ordered before 12:00, unless item is special order.