HELIX AMPLIFY 201 X-Over monoblock 250/450/750 watts RMS

HELIX AMPLIFY – Powerful. Clear. Consistent.

With AMPLIFY, HELIX redefines the standards for modern amplifier design: through a contemporary interpretation of classic concepts. Instead of "one-size-fits-all" solutions, AMPLIFY focuses on specialized models precisely tailored to different applications. This rigorous philosophy guarantees that each model delivers maximum performance for its intended use – while concentrating on the essentials.

The 2 Series marks the entry point into the AMPLIFY platform – and simultaneously forms its technical and sonic core. These compact Class D amplifiers combine power, a fully bridgeable multi-channel architecture, and outstanding efficiency with practical integration capabilities. Brilliant and precise highs, controlled mids, and tight, powerful bass – with sound quality and performance far exceeding expectations in its class, the 2 Series brings all facets of natural and powerful sound to every vehicle. Whether as a DIRECT, X-OVER, or DSP variant (from summer 2025): Everything is offered, from flexible 6-channel configurations for full-range applications to a powerful 1-channel subwoofer powerhouse. AMPLIFY 201 – The Specialists for Subwoofer Performance Uncompromising bass power in the smallest space: The AMPLIFY 201 monoblocks are specially designed for use as subwoofer amplifiers and deliver confident performance with high control – ideal for powerful low-frequency reproduction with maximum precision. With up to 750 W RMS at 1 ohm, adjustable subsonic and low-pass filters, and adjustable phase in the X-OVER version, or an uncompromisingly pure signal path in the DIRECT version, as well as their compact design, the AMPLIFY 201 amplifiers are the ideal choice for targeted subwoofer upgrades in modern sound systems. Sound and performance – above the standard. The AMPLIFY 2 series not only stands for perfectly tailored solutions for different applications, but also for the clear goal of exceeding the expectations of its class in terms of sound and performance in each of these applications. All amplifiers in the series offer brilliant sound quality, low distortion, and outstanding signal-to-noise ratios – coupled with consistently bridgeable multi-channel outputs for maximum power and installation flexibility. The result: A series that doesn't define itself by its class, but sets new standards within it – making it the first choice for anyone seeking application-oriented performance without compromise. AMPLIFY X-OVER – Maximum Flexibility for Classic Upgrades The AMPLIFY X-OVER models are the ideal solution for conventional sound upgrades with factory radios or aftermarket head units. Switchable high-level and RCA inputs allow seamless integration into a wide variety of system configurations. The high-level input is designed for input voltages up to 32 V and guarantees maximum compatibility with modern factory radios as well as premium sound systems. Additionally, an integrated automatic turn-on function allows the amplifier to be activated via the music signal – without an external remote signal. The active crossover offers precise signal tuning with high-quality 12 dB low-pass and subsonic filters, phase control, an input mode switch, and the option to connect the included remote control. The package is rounded off by the ADEP.3 circuit, which prevents interference in OEM systems and ensures seamless integration. Form follows function. The design of the HELIX AMPLIFY 2 series combines modern functionality with a clean, technically sophisticated look. Its compact dimensions allow for flexible installation, even in confined spaces. A removable cover conceals connections and controls, providing additional protection and creating a clean, high-quality overall impression. Matte surfaces, precise lines, and a minimalist design language create a stylish, exclusive look that blends seamlessly into any modern vehicle interior.

Features

• Highly efficient subwoofer amplifier with a high output power of up to 750 watts RMS @ 1 ohm – perfect for use with two 2-ohm subwoofers in parallel operation
• Ideal for targeted subwoofer retrofitting of factory sound systems thanks to an integrated, active crossover and a high-power stereo high-level input with up to 32 V RMS input sensitivity
• High-level input with ADEP.3 circuitry for interference-free integration into OEM sound systems
• Crossover with low-pass filter, subsonic filter, and phase for optimal system configuration
• Automatic turn-on via music signal for maximum compatibility with factory systems Sound systems
• Very compact design for easy integration even in limited spaces
• Start-stop capability down to 6V supply voltage for uninterrupted performance
• Advanced Class-D design for high efficiency with minimal heat generation
• Wired remote control for volume adjustment

Technical specifications

* Continuous 1 ohm power output achieved with music signal only

Scope of delivery

1 x HELIX AMPLIFY 201 X-OVER amplifier
1 x wired remote control
2 x Allen keys
1 x Connection cable
2 x fuses
1 x mounting hardware
1 x instruction manual