AMP201X24V extremely compact mono amplifier, with crossover, 1 Ohm stable

Helix
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€ 243,00
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HELIX AMPLIFY 201 X-OVER - 24V Edition subwoofer amplifier 1-channel extremely compact, with crossover and 1 Ohm stability

Key Features

  • Highly efficient amplifier with high output power up to 240 Watts RMS at 2 Ohm per channel, for impressive dynamics and powerful sound
  • Developed specifically to enhance the audio systems of trucks and buses thanks to 24 Volt power supply technology
  • Output channels connectable in bridge for flexible system configurations and maximum output power
  • Very compact design for space-saving installation
  • Start-stop functionality up to a power supply voltage of 6 V for uninterrupted performance
  • Integrated active crossover with high-pass and low-pass filters, plus input mode selector for optimal system configuration
  • DirectDSP function: the input signal bypasses the integrated active crossover and is directed without filtering to the amplifier output stage
  • Intelligent high-level input with ADEP.3 for seamless integration into OEM audio systems
  • Advanced Class D concept for high efficiency and low heat dissipation

With the AMPLIFY series, HELIX redefines the concept of modern amplifier design, reinterpreting classic concepts in light of today's audio needs. Rather than designing a single amplifier capable of doing everything, the focus is on specialized models, each tailored to a specific type of application. This clear philosophy ensures that each variant offers exactly what is needed - and nothing more.

AMPLIFY performance for 24 Volt systems

The new AMPLIFY X-OVER - 24V editions are designed to enhance the audio system of trucks, buses and commercial vehicles equipped with 24 Volt electrical systems. Many of these platforms are equipped with basic series audio systems or with limited audio performance, and replacement of OEM components is often subject to restrictions.

Thanks to dedicated 24 Volt power supply and efficient Class D architecture, the AMPLIFY models guarantee stable output, high reliability and significant improvement in sound quality, even during long operating cycles and in demanding conditions. This makes the 24V editions a practical, robust and powerful boost solution for professional applications.

AMPLIFY 201 optimizes subwoofer performance to the best

Bass power without compromise in a compact format: the AMPLIFY 201 monoblock amplifiers are designed specifically to enhance subwoofers and guarantee high output power with excellent control - ideal for deep and dynamic bass with maximum precision. With up to 750 W RMS at 1 Ohm, adjustable subsonic and low-pass filters and phase control in the X-OVER version - or an uncompromised signal path in the DIRECT model - together with their reduced footprint, the AMPLIFY 201 amplifiers represent the perfect choice for targeted subwoofer upgrades in modern audio systems.

Series 2 marks the entry into the AMPLIFY platform and constitutes its technical and sonic core. These compact Class D amplifiers combine powerful performance, a fully bridgeable multichannel architecture and excellent efficiency with perfect integration into the real environment.

Brilliant and precise highs, controlled mids and powerful and well-defined bass: Series 2 enhances every nuance of a natural and powerful sound, exceeding the expectations of its category in both sound quality and output power. Whether it is the DIRECT, X-OVER or DSP variant: from flexible 6-channel configurations for full-range applications to powerful dedicated mono amplifiers for subwoofers, Series 2 offers tailored solutions for every configuration.

Manuale utente

n-20260806164301-helix-amplify-204-x-over-24v-edition-manual-13-08-2025.pdf

HELIX AMPLIFY 201 X-OVER - 24V Edition technical specifications

  • RMS Power ≤ 1% THD+N at 14.4 V
  • Ohm 1 x 250 Watt
  • Ohm 1 x 450 Watt
  • 1 Ohm 1 x 750 Watt*
  • Max. Output power up to 850 Watts RMS at 1 Ohm
  • Amplification technology: Class D
  • Inputs: 1 x RCA/Cinch
  • 2 x high-level speaker inputs
  • 1 x remote input
  • 1 x remote control input
  • RCA/Cinch input sensitivity: 0.5 - 6 Volt
  • High level: 3 - 32 Volt
  • RCA/Cinch input impedance: 8 kOhm
  • High level: 9 - 33 Ohm
  • Outputs: 1 x speaker output
  • Frequency response: 10 Hz - 250 Hz
  • Low-pass filter adjustable from 50 Hz to 250 Hz
  • Subsonic filter adjustable from 10 Hz to 50 Hz
  • Phase adjustable from 0° to 180°
  • High-pass/low-pass filter slope: 12 dB/Oct.
  • Low-pass: 12 dB/Oct. Subsonic slope 12 dB/Oct.
  • Signal-to-noise ratio (A-weighted) 114 dB at full power
  • Distortion (THD at 100 Hz, 1 W on 4 Ohm) < 0.003%
  • Distortion (THD+N at 100 Hz, 1 W on 4 Ohm) < 0.02%
  • Damping factor 200
  • Operating voltage 21 - 32 Volt (max. 5 sec. up to 6 Volt)
  • Idle current 750 mA
  • Fuse 2 x 15 A LP-Mini-fuse (APS)
  • Rated DC power 12 V 40 A max.
  • Operating temperature range -40 °C to +70 °C
  • Additional features: active and adjustable crossover, Start-Stop function, high-level input with automatic turn-on function, ADEP.3
  • Dimensions (H x W x D): 41.5 x 248 x 118 mm / 1.63 x 9.76 x 4.65"

* Continuous power at 1 Ohm delivered only with musical signal

Package contents:

  • 1 x HELIX AMPLIFY 204 X-OVER - 24V Edition Amplifier
  • 1 x Remote control with cable
  • 2 x Allen keys
  • 1 x Connection cable
  • 2 x Fuses
  • 1 x Mounting material
  • 1 x Instruction manual
€ 243,00 Price incl. VAT