HELIX HEC HD USB – HD-Audio USB Interface
HELIX HEC HD USB – HD-Audio USB Interface is backordered and will ship as soon as it is back in stock.
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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.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
HELIX HEC HD USB – HD-Audio USB Interface
The HELIX HEC HD USB Interface expands your HELIX amplifier or DSP with a High-Resolution Audio USB input, transforming your smartphone, tablet, or PC into a true HD-Audio player.
With direct digital signal transmission up to 192 kHz / 32-bit, this interface ensures lossless audio playback, bypassing unnecessary AD-DA conversions for pure, high-fidelity sound. Ideal for audiophiles seeking studio-grade performance in their vehicle, it’s the perfect add-on for uncompromising clarity and dynamics.
HD-Audio Playback Without Compromise
Enjoy native high-resolution playback directly from your device. Supporting PCM streams up to 192 kHz / 32-bit, it provides pristine digital-to-DSP transmission for superior sound quality.
Seamless Connectivity Across Devices
The HEC HD USB Interface is compatible with Windows, macOS, iOS, and Android, supporting both Full Speed (96 kHz) and High Speed (192 kHz) modes. Simply connect via USB to start streaming — no conversion, no loss, no fuss.
Precision Engineering
An asynchronous USB connection with dedicated clock generators guarantees ultra-low jitter and precise signal timing. Automatic signal detection ensures smooth handover between devices and playback modes.
Key Features
- High-Resolution USB audio input (up to 192 kHz / 32-bit)
- Direct digital transmission to HELIX DSP for lossless sound
- Asynchronous USB clock system for ultra-low jitter
- Compatible with Windows, macOS, iOS & Android
- Automatic signal detection and switching
- Includes model-specific side panel for easy installation
Specifications
Input Sampling Rate: 32 – 192 kHz / 16, 24, or 32-bit
Input Format: PCM digital audio
Connection Type: USB (Mini-USB or OTG, depending on device)
Operating Modes:
• Full Speed (default): up to 96 kHz / 32-bit, plug-and-play
• High Speed: up to 192 kHz / 32-bit (Windows driver required)
Compatibility: Windows, macOS, iOS, Android
Power Supply: via USB connection (no charging support)
📦 Professional installation available at MC Audio Sydney — authorised HELIX dealer and specialist in DSP and high-resolution audio integration.

