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HELIX AMPLIFY 204 DIRECT
• 4-channel amplifier
• Class D
• 4 x 190W
• No internal crossovers
• Superb sound quality!
• Dimensions: 40 x 248 x 114 mm (H x W x D)
With the new AMPLIFY series, HELIX redefines modern amplifier design!
Instead of designing one amplifier to do everything, the Amplify series offers several models tailored to a specific application. This clear philosophy ensures that each model provides exactly what you need, and nothing extra.
The Amplify series comes in three different versions: DIRECT, X-OVER, and DSP (the DSP model will be available in summer 2025).
X-OVER models are the ideal choice for traditional installations in cars using either factory or aftermarket head units. These amplifiers feature, among other things, a speaker-level input and extensive crossovers.
The signal in DIRECT models does not have to pass through crossover circuits, which allows for better sound quality and more precise adjustments. These amplifiers are intended for systems with a separate DSP device. As their name suggests, DIRECT series amplifiers have no crossovers at all; all adjustments are made with a separate DSP device.
The 2-Series is the most affordable line in the AMPLIFY series, still offering extensive features and incredible sound quality in a compact size.
The extensive crossovers of the X-OVER model amplifiers can be switched off if necessary, and adjustments can be made from the head unit or a separate DSP device. The signal can be fed to the device via RCA or speaker level, and the device will automatically turn on if needed (auto remote On / Off).
The Amplify 2-Series brings out every nuance of sound, exceeding expectations in its price range in both sound quality and power.
Tekniset tiedot:
Technical data:
Power RMS ≤ 1% THD+N @ 14.4 V
- @ 4 Ohms 4 x 100 Watts
- @ 2 Ohms 4 x 190 Watts
- @ 1 Ohm -
- bridged @ 4 Ohms 2 x 380 Watts
- bridged @ 2 Ohms -
Max. output power per channel* Up to 240 Watts RMS @ 2 Ohms
Amplifier technology Class D
Inputs 4 x RCA / Cinch
1 x Remote In
Input sensitivity 1 - 8 Volts
Input impedance 67 kOhms
Outputs 4 x Speaker output
Output voltage RCA / Cinch -
Signal converter for digital input -
Frequency response 10 Hz - 20.000 Hz
Bass boost -
Highpass -
Lowpass -
Bandpass -
Subsonic -
Phase -
Slope high- / lowpass -
Slope subsonic -
Slope subsonic / lowpass -
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 %
Distortion (THD @ 100 Hz, 1 W into 4 Ohms) -
Distortion (THD+N @ 100 Hz, 1 W into 4 Ohms) -
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 DC 12 V ⎓ 70 A max.
Operating temperature range -40 °C to +70 °C
Additional features Start-Stop capability, Clipping LED, DirectDSP inputs
Dimensions (H x W x D) 40 x 248 x 114 mm /
1.58 x 9.76 x 4.49"
* One channel driven (≤ 10 % THD+N @ 14.4 V)
Scope of delivery:
1 x Amplifier HELIX AMPLIFY 204 DIRECT
2 x Allen key
1 x Mounting material
1 x Connection cable
2 x Fuse
1 x Instruction manual
Technical data:
Power RMS ≤ 1% THD+N @ 14.4 V
- @ 4 Ohms 4 x 100 Watts
- @ 2 Ohms 4 x 190 Watts
- @ 1 Ohm -
- bridged @ 4 Ohms 2 x 380 Watts
- bridged @ 2 Ohms -
Max. output power per channel* Up to 240 Watts RMS @ 2 Ohms
Amplifier technology Class D
Inputs 4 x RCA / Cinch
1 x Remote In
Input sensitivity 1 - 8 Volts
Input impedance 67 kOhms
Outputs 4 x Speaker output
Output voltage RCA / Cinch -
Signal converter for digital input -
Frequency response 10 Hz - 20.000 Hz
Bass boost -
Highpass -
Lowpass -
Bandpass -
Subsonic -
Phase -
Slope high- / lowpass -
Slope subsonic -
Slope subsonic / lowpass -
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 %
Distortion (THD @ 100 Hz, 1 W into 4 Ohms) -
Distortion (THD+N @ 100 Hz, 1 W into 4 Ohms) -
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 DC 12 V ⎓ 70 A max.
Operating temperature range -40 °C to +70 °C
Additional features Start-Stop capability, Clipping LED, DirectDSP inputs
Dimensions (H x W x D) 40 x 248 x 114 mm /
1.58 x 9.76 x 4.49"
* One channel driven (≤ 10 % THD+N @ 14.4 V)
Scope of delivery:
1 x Amplifier HELIX AMPLIFY 204 DIRECT
2 x Allen key
1 x Mounting material
1 x Connection cable
2 x Fuse
1 x Instruction manual