AMP204X24V 4-channel amplifier with integrated active crossover

Helix
Your price:
€ 281,00
Price per single item (VAT included)
Available on backorder · estimated arrival in stock in 7 days

Information and details

Calculating shipping costs to
Amplifier Type
4 channels
Amplifier Class
D
RMS Power 4 Ohm
4x100 Watt
RMS Power 2 Ohm
4x190 Watt
RMS Power Mono 2Ω
2x380 Watt
S/PDIF Digital Input
No
High Level Input
YES
Signal-to-Noise Ratio
99 dB S/N
Total Harmonic Distortion
0,02 % THD
Size
248 x 114 x 40 mm

Helix AMPLIFY 204 X-OVER 24V 4-channel amplifier with integrated active crossover

HELIX AMPLIFY 204 X-OVER - 24V Edition represents Audiotec Fischer's most advanced vision on the concept of modern amplification for professional applications and 24 Volt vehicles. With the AMPLIFY series, HELIX rethinks the traditional car audio amplifier focusing on specialized models, designed to perform a specific task at its best, without unnecessary compromises.

The AMPLIFY 2 series constitutes the technical and tonal heart of this family: compact, efficient and powerful Class D amplifiers, equipped with a fully bridgeable multichannel architecture. This solution allows extremely flexible channel management, while always maintaining high tonal precision. The sound quality is characterized by bright and detailed high frequencies, a controlled and natural midrange and solid, dynamic and well-defined bass, clearly exceeding category expectations both in terms of audio quality and real power. AMPLIFY 204 X-OVER - 24V Edition is the ideal solution for fullrange systems on commercial vehicles, trucks, campers and professional applications at 24 Volt.

The four fully bridgeable channels allow 4-channel configurations, 3 channels with subwoofer or 2 channels in bridged mode, easily adapting to different system architectures. The delivered power reaches 4 x 100 watts RMS at 4 ohm, 4 x 190 watts RMS at 2 ohm or 2 x 380 watts RMS at 4 ohm in bridged configuration, guaranteeing ample dynamic headroom even in high-performance systems. The X-OVER version integrates a high-quality active crossover, ideal for creating optimized systems without external DSP, always keeping maximum sound fidelity and absolute control of the audio signal as the main objective.

Sound performance and power beyond standard

The HELIX AMPLIFY 2-Series is born with a precise objective: to exceed reference standards in every application, offering high audio quality and real power without compromises. All amplifiers in the range guarantee detailed sound reproduction, minimal distortion and excellent signal-to-noise ratio, combined with fully bridgeable multichannel outputs for maximum installation flexibility. AMPLIFY does not simply fall within a category: it redefines the performance of its class, becoming the ideal choice for audio upgrades oriented towards maximum efficiency and reliability.

AMPLIFY X-OVER - Maximum flexibility for traditional audio upgrades

The AMPLIFY X-OVER models, such as the AMP204X24V, are designed for conventional audio upgrades with factory or aftermarket car radios. The heart of the system is the integrated active crossover, equipped with adjustable high-pass and low-pass filters and input mode selector, which allows precise signal management and quick system configuration.
Possible configurations include:

  • Active front systems (tweeter + separate woofer)
  • Passive front and rear systems
  • Front system + subwoofer via bridged channels

The selectable High-Level and RCA inputs, with sensitivity up to 16 V, ensure perfect integration with any source. The ADEP.3 circuit guarantees compatibility with OEM car radios, while the Auto Turn-On function simplifies installation. The DirectDSP function allows you to completely bypass the internal crossover, sending the unfiltered signal to the power stage: ideal solution for future upgrades with external DSP.

AMPLIFY for 24 Volt electrical systems

The AMPLIFY AMP204X24V is specifically designed for vehicles with 24V electrical systems, such as trucks, buses and commercial vehicles. These vehicles are often equipped with limited OEM audio systems that are difficult to replace.
Thanks to dedicated 24 Volt power supply and high efficiency Class D technology, the amplifier guarantees:

  • Stable and reliable power
  • Continuous operation even under harsh conditions
  • Clear improvement in sound quality A robust, professional and high-performing solution, ideal for intensive and long-term applications.

Compact and functional design

The design of the HELIX AMPLIFY 2-Series combines technical functionality and modern aesthetics. Compact dimensions allow installation even in limited spaces. The removable top cover protects connections and controls, improving both reliability and aesthetics of the installation. Matte surfaces, decisive lines and a minimalist style give the amplifier a technical and elegant appearance, perfectly integratable in any modern cabin.

Scheda tecnica

n-20250512094847-amplify-204-x-over.pdf

HELIX AMPLIFY 204 X-OVER 2 x Allen key 3 x Connection cable 2 x Fuse 1 x Mounting material 1 x Instruction manual

Helix AMPLIFY 204 X-OVER 24V Technical specifications

Power output:

  • RMS ≤ 1% THD+N at 28.8V @ 4 Ohm 4 x 100 Watt / @ 2 Ohm 4 x 190 Watt
  • RMS ≤ 1% THD+N at bridge @ 4 Ohm 2 x 380 Watt
  • Maximum power output per channel up to 240 Watt RMS at 2 Ohm
  • Amplifier technology Class D
  • Inputs 4 x RCA/Cinch
  • 4 x speaker input high-level
  • 1 x remote input
  • RCA/Cinch input sensitivity: 1-8 Volt High-level: 2-16 Volt
  • RCA/Cinch input impedance: 8 kOhm High-level: 9-33 Ohm
  • Outputs 4 x speaker output
  • Frequency response 10-20,000 Hz
  • High-pass 45-400 Hz adjustable (can be disabled)
  • Low-pass 45-400 Hz adjustable (can be disabled)
  • High-pass/low-pass slope High-pass: 12 dB/oct. / Low-pass: 12 dB/oct.
  • Signal-to-noise ratio (A-weighted) 99 dB at full power
  • Distortion (THD at 1 kHz, 1 W at 4 Ohm) < 0.012%
  • Distortion (THD+N at 1 kHz, 1 W at 4 Ohm) < 0.02%
  • Damping factor 70
  • Operating voltage 21-32 Volt (max. 5 sec. down to 12 Volt)
  • Idle current 750 mA
  • Fuse 2 x 15 A LP-Mini-fuse (APS)
  • Rated power DC 24 V = 40 A max.
  • Operating temperature range from -40 °C to +70 °C
  • Adjustable active crossover, input mode switch, Start-Stop capability, high-level input with auto turn-on function, ADEP.3, DirectDSP function
  • Dimensions 40 x 248 x 114 mm
€ 281,00 Price incl. VAT