Helix HDM 1 – C ONE – SPDIF digital input module for HELIX C ONE
The HDM 1 fits the HDM slot of the HELIX C ONE amplifier and adds one optical digital stereo input. Digital audio up to 96 kHz is transmitted via optical fibre, galvanically isolated, and converted to analog by two BurrBrown D/A converters.
The SPDIF Direct In function routes the signal from the module straight to the amplifier output stages, bypassing the input stage – ideal when the amplifier is fed by a digital signal processor.
Key Features
- Input: 1 x optical SPDIF with SPDIF Direct In switch
- SPDIF Direct In: signal goes directly to the output stages
- D/A conversion: BurrBrown converters with 32-bit resolution
- Sample rate: 28–96 kHz
- Ground isolated: optical fibre transmission
- Side panel: device-specific side panel for C ONE included
Compatibility
- HELIX C ONE
Technical Specifications
| Inputs | 1 x Optical |
| Input sampling rate |
28 kHz to 96 kHz |
| Input format |
SPDIF |
| Additional features | SPDIF Direct In function |
Scope of Delivery
1 x HDM 1 module
1 x Device-specific side panel for HELIX C ONE
1 x Allen screw
1 x Allen key
1 x Instruction manual
