• “Ultra HD Class D” concept that combines the sound quality of the Class AB technology with the advantages of a Class D amplifier
  • Two speaker outputs each with 490 watts RMS to 2 ohms
  • Digital SPDIF format optical signal input including SPDIF Direct In switch to route the digital input signal directly to the power amplifier
  • BurrBrown DA converter of the latest generation with 32-bit resolution
  • Integrated, active crossover with high pass, low pass, bandpass and configurable bass boost
  • Intelligent high-level input with ADEP circuit
  • Wired remote control for volume control
  • Extremely compact dimensions and low heat generation thanks to very high efficiency
SKU: P812001 Category: Tag:


Power and sensitivity abound – the new P TWO combines two features in a unique way. With a continuous output power of 2 x 490 watts into 2 ohms, this compact amplifier is able to get powerful subwoofers on their toes. The technical concept for all woofers with 2 x 2 ohm double voice coils, such as the new HELIX Q subwoofers, is virtually predestined.

But despite its sheer power, the P TWO is by no means a pure subwoofer amplifier. On the contrary, their Ultra HD Class D technology allows for extended audio response up to 40kHz, coupled with high attenuation factor, lowest distortion, and excellent signal-to-noise ratio. Thus, the P TWO is equally the ideal game partner for heavy-duty front systems in audiophile system configurations.

Ultra-HD Class D High-Res Audio High Level Input ADEP RCA Input Optical input Remmote Control ready Car Remote Switch Active crossover Start-stop capability PSM Regulated Power Supply SMD Made-in-Germany



Special features:

Ultra HD Class D amplifier technology
Compared to conventional class D amplifiers, this concept achieves an extended frequency response of over 40 kHz with a reduced harmonic distortion factor thanks to a cleverly designed new negative feedback. The result: the sound quality of a Class AB amplifier combined with the efficiency of Class D concepts.

Signal converter with native 32-bit resolution
The HELIX P TWO uses a high-quality DA converter of the latest generation in the optical signal input with a native resolution of 32 bits instead of the usual 24 bits. This results in an unprecedented level of signal conversion precision, further optimizing sound at lower signal levels.

Intelligent high-level input
Modern, factory-installed car radios are becoming increasingly intelligent in terms of diagnosing the connected speakers. If an amplifier is connected to the radio instead, it usually results in error messages up to the elimination of individual functions (such as faders). The new Advanced Diagnostics Error Protection (ADEP) circuitry eliminates all of these problems without unduly stressing the radio’s speaker outputs at high levels.

Start Plugability
The power supply in the HELIX P TWO amplifier ensures the internal power supply even with short-term drops down to 6 volts. This ensures that the HELIX P TWO remains fully functional even when the engine is started.


Power RMS / Max.

– @ 4 ohms 2 x 280/560 watts

– @ 2 ohms 2 x 490/980 watts

– @ 1 ohm – 

– bridged to 4 ohms – 

– bridged to 2 ohms – 

amplifier technology Ultra HD Class D

inputs 2 x RCA 

2 x High-level speaker input 

1 x Optical SPDIF (28 – 96 kHz) 

1 x Remote In 

1 x Remote control input

input sensitivity RCA 2 – 8 volts 

high 5 – 20 volts

Input impedance RCA 10 kOhm

Input impedance high level 13 ohms

outputs 2 x speaker output

Output voltage RCA – 

Signal converter for the digital input BurrBrown 32 bit DA converter

frequency range 10 Hz – 40,000 Hz

Bass Boost 0 – 9 dB / 40 Hz – 120 Hz

highpass 15 Hz – 4,000 Hz adjustable

lowpass 15 Hz – 4,000 Hz adjustable

bandpass 15 Hz – 4,000 Hz adjustable

Subsonic – 

phase – 

Slope high / low pass Butterworth 12 dB / oct.

Slope Subsonic / Low Pass – 

Signal-to-noise ratio digital input 105 dB (A-weighted)

Signal-to-noise ratio analog input 105 dB (A-weighted)

Harmonic distortion (THD) <0.005%

damping factor > 200

operating voltage 10.5 – 16 volts (max 5 secs down to 6 volts)

No-load current 2400 mA

fuse 3 x 30 A LP mini plug-in fuse

Additional features Active, adjustable crossover, bass boost, input mode switch, high-level input with Advanced Diagnostics Error Protection (ADEP), auto remote switch, SPDIF Direct In switch, wired remote control for volume control

Dimensions (H x W x D) 50 x 260 x 190 mm


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