Welcome to MC Audio

Call Us - 0415 072 361

HELIX  |  SKU: AMPLIFY 204 X-OVER

HELIX AMPLIFY 204 X-Over - 4 Channel Bridgeable Amplifier | Active Crossovers

Regular price $595.00
Tax included Shipping calculated at checkout.

Pickup available at MC Audio

Usually ready in 1 hour

Delivery and Shipping

Order processing time

In stock items

Orders for in-stock items are processed within 1 – 5 business days (excluding weekends and holidays) after receiving your order confirmation email. You will receive another notification when your order has shipped.

Pre-order

If you have placed an order for a pre-order item, please note that your order will not be processed until the release date of the product. We will process your order and ship it to you as soon as the product becomes available.

For any questions or concerns about your pre-order feel free to contact us at any time.

Items availability

If you have ordered multiple items, including pre-order items, we will hold your order until all items are available for shipment. If you wish to receive your in-stock items sooner, please place a separate order for those items.

We may cancel your order if the item(s) is out-of-stock and is no longer available. You will receive an email if your complete order is canceled.

In the situation that part of your order is out-of-stock, we will remove the out-of-stock item(s) from your order and we will ship the remaining item(s). You will not be charged for out-of-stock items ordered, and will be informed by an email notification.

If any items in your order require customization or are on backorder, we will contact you with an estimated delivery date.

Tracking your order

Once your order has been shipped, you will receive a shipping confirmation email with a tracking number. You can use the tracking number to monitor the status of your shipment.

If you require any further information on this product, pricing, shipping or anything else for that matter please don’t hesitate to contact us for a quick reply.

HELIX AMPLIFY 204 X-Over - 4 Channel Bridgeable Amplifier | Active Crossovers

Payment & Security

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

With the AMPLIFY series, HELIX redefines the idea of modern amplifier design – by reinterpreting classic concepts through the lens of today’s audio demands. Rather than designing one amplifier to do everything, the focus lies on specialized models, each tailored for a specific type of application. This clear philosophy ensures every variant delivers exactly what’s needed – and nothing you don’t.

The 2-Series marks the entry into the AMPLIFY platform – and forms its technical and tonal core. These compact Class D amplifiers combine powerful performance, a fully bridgeable multi-channel architecture, and excellent efficiency with seamless real-world integration. Brilliant and precise treble, a controlled mid-range as well as tight, powerful bass – the 2-Series brings out every nuance of natural, powerful sound, outperforming the expectations of its class in both sound quality and output. Whether as a DIRECT, X-OVER, or DSP variant (coming in summer 2025): from flexible 6-channel setups for fullrange applications to dedicated mono powerhouses for subwoofers – the 2-Series offers tailored solutions for every configuration.

AMPLIFY 204 – The versatile solution for fullrange applications

The AMPLIFY 204 amplifiers combine four fully bridgeable outputs with outstanding sound quality and impressive performance – ideal for powerful front-end or multi-channel setups. Whether as a classic 4-channel system, a 3-channel configuration with subwoofer, or a bridged 2-channel layout: the 204 adapts flexibly to a wide range of vehicles and system requirements. With an output of 4 x 100 watts RMS at 4 Ω, 4 x 190 watts RMS at 2 Ω, or 2 x 380 watts RMS bridged at 4 Ω, it delivers more than enough power for ambitious setups. Available as an X-OVER version with integrated active crossover or a DIRECT model optimized for pure signal transmission via external DSPs – always with a focus on superior sound performance.

Sound and power – above the standard

The AMPLIFY 2-Series is more than just a range of application-specific solutions – it's a clear commitment to a very specific mission: to outperform expectations in each of those applications – both in sound quality and power delivery. All amplifiers in the series offer brilliant sound performance, minimal distortion, and an outstanding signal-to-noise ratio – combined with fully bridgeable multi-channel outputs for maximum output and installation flexibility. The result: a lineup that doesn’t define itself by its class, but sets new benchmarks within it – making AMPLIFY the first choice for those seeking application-focused performance without compromise.

AMPLIFY X-OVER – Maximum flexibility for classic upgrades

The AMPLIFY X-OVER models are the ideal choice for conventional sound upgrades using factory or aftermarket head units. At the heart of these models lies the integrated active crossover, featuring high-quality adjustable high- and lowpass filters as well as an input mode switch. This enables precise signal tuning and simplifies the implementation of various system configurations. Whether you’re running an active front system with separate tweeter and woofer channels, passive front and rear speaker setups, or a combined front system with a subwoofer via bridged channels – the X-OVER models provide maximum flexibility for system design. Switchable highlevel and RCA inputs with up to 16 V input sensitivity allow seamless integration into nearly any OEM or aftermarket environment. The integrated ADEP.3 circuit ensures error-free communication with factory radios, while the automatic turn-on function reduces installation complexity. As an additional feature, the DirectDSP function allows the input signal to bypass the internal crossover entirely and be routed unfiltered to the output stage – perfect for users who plan to upgrade their system with an external DSP later on.

Form follows performance

The design of the HELIX AMPLIFY 2-Series blends modern functionality with a refined, technical aesthetic. Its compact dimensions allow for flexible installation, even in tight spaces. A removable top cover conceals all connections and controls, offering additional protection as well as a clean and streamlined appearance that highlights the amplifier’s high-quality character. Matte surfaces, sharp contours, and a minimalist design language create a sleek, exclusive look that integrates seamlessly into any modern vehicle interior.

📦Available for online purchase through MC Audio Sydney, this product is ideal for enthusiasts seeking superior audio without unnecessary complexity. As an authorised Helix dealer in Australia, MC Audio Sydney supplies genuine Helix-engineered speaker components with support available for product selection and system integration.

Technical data

HELIX AMPLIFY 204 X-Over - 4 Channel Bridgeable Amplifier | Active Crossovers

HELIX

HELIX AMPLIFY 204 X-Over - 4 Channel Bridgeable Amplifier | Active Crossovers

High Performance

Our expert team offers a wide range of services, from speaker replacements and DSP amplifier integration to complete soundproofing. Whether you're looking for bass-heavy subwoofers or seamless Android Auto integration, we've got you covered.