Helix Extension Card 2.0 – BT HD

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Wireless HD Audio – Flexible, Powerful, and Future-Proof

With the Extension Card 2.0 BT HD, your DSP or DSP amplifier becomes a fully-fledged Bluetooth® audio streaming center. Thanks to the modern Bluetooth 5.0 standard and support for high-quality audio codecs such as aptX™ HD, AAC, and SBC, you can enjoy wireless music playback in impressive sound quality – up to 576 kbps at 24-bit/48 kHz. An optical digital output (SPDIF) is also available, providing additional connectivity options.

High-Definition Audio Quality

The integrated Qualcomm® aptX™ HD codec enables wireless transmission in true Hi-Res Audio quality. Digital signal transmission occurs directly from the module to the DSP – without any additional AD/DA conversion – for lossless playback and superior sound performance.

Full Control – Directly via the Remote Control

The Extension Card supports control commands such as play/pause, track skip, connect, pair, and disconnect via a connected DSP remote control (e.g., CONDUCTOR or DIRECTOR). The DIRECTOR's display also shows the artist, track title, and currently used audio codec.

Wireless DSP Tuning

Thanks to the high bandwidth of Bluetooth® 5.0, complete DSP tuning can be performed wirelessly in conjunction with a Bluetooth-enabled PC and the DSP PC-Tool software (version 5 and later). Say goodbye to cumbersome USB cables!

Seamless Integration & Maximum Compatibility

The Extension Card 2.0 BT HD is compatible with all HELIX and MATCH DSP products with an Extension Card 2.0 slot. A model-specific cover plate and a high-performance antenna are included for easy and secure installation – a well-thought-out solution down to the smallest detail.

Features at a Glance

Extends the DSP device with Bluetooth® audio streaming and an optical digital output

• High-resolution audio transmission via aptX™ HD with up to 576 kbps / 24-bit @ 48 kHz
• Supported codecs: SBC, AAC, aptX, aptX HD
• Direct digital signal processing without conversion – for maximum sound quality
• Wireless DSP configuration via DSP PC Tool 5 (or higher)
• Display of artist, title, and codec via DIRECTOR Display (from software version 2.10)
• Playback function control via DSP remote controls
• SPDIF output (optical) for digital signal transmission
• Includes cover plate with threaded inserts and high-performance antenna
• Made in Germany

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Technical Specifications

• Feature Value
• Bluetooth® Standard 5.0 + EDR
• Supported profiles: A2DP, AVRCP, SPP
• Supported codecs: SBC, AAC, aptX™, aptX™ HD
• Maximum number of paired devices: 8
• Frequency range: 2402 – 2480 MHz
• Range: Up to 10 meters
• SPDIF output: 96 kHz / 24-bit or 48 kHz / 24-bit (depending on the DSP)

Compatibility

Compatible with all HELIX and MATCH DSP products with an Extension Card 2.0 slot

Scope of delivery

1x Extension Card 2.0 BT HD

1x Cover plate with threaded insert

1x High-performance antenna

1x Mounting screw set