4 channels
4 channels is backordered and will ship as soon as it is back in stock.
Pickup available at MC Audio
Usually ready in 1 hour
Delivery and Shipping
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.
4 channels
4 channels
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
The HELIX C FOUR is a premium 4 channel Class AB amplifier engineered for audiophile-grade car audio systems. Built around a high-current analog topology, it delivers natural tonality, dynamic control and refined musical detail for demanding front stage and multi-channel applications.
Designed to remain stable down to 2Ω per channel, the C FOUR offers flexibility for active 2-way or 3-way configurations, powerful rear-fill setups or bridged operation for higher output demands. Its Class AB architecture focuses on linear signal reproduction and low distortion, making it ideal for high-resolution systems.
The amplifier’s robust power supply and carefully selected internal components ensure consistent performance, clean transient response and strong channel separation. When paired with HELIX or BRAX DSP platforms and tuned via DSP PC-Tool, the C FOUR integrates seamlessly into advanced active systems.
Available through MC Audio Sydney. As an authorised Helix dealer in Australia, MC Audio Sydney supplies genuine HELIX amplification with professional installation and system calibration support.
4 channels
HELIX
