Description
The DiGiCo MOD-SDR-ADC32B is an eight-channel 32-bit microphone preamp and A/D converter card designed for the DiGiCo SD-Rack. It uses high-resolution conversion technology to capture incoming audio with exceptional clarity and detail. The design provides an extended dynamic range that helps preserve the character and nuances of microphone signals. Advanced analogue circuitry works alongside the digital conversion stage to maintain a clean signal path. This makes the card suitable for applications where accurate audio reproduction is essential.
High-Performance Mic Preamplification
The card provides eight channels of microphone input processing for professional live sound and production environments. Its carefully designed analogue front end is intended to deliver clean and consistent signal capture. Dedicated low-noise circuitry helps minimize unwanted noise while maintaining audio detail. The high-quality conversion stage provides a transparent transition from analogue microphone signals to digital audio. This allows engineers to capture a wide range of sources with precision and consistency.
Exceptional Dynamic Range
The MOD-SDR-ADC32B is designed to provide an impressive 122 dBA dynamic range, allowing quiet details and powerful transients to be reproduced with clarity. Its low-noise architecture helps maintain a clean signal even in demanding applications. The analogue and digital stages are carefully optimized to preserve audio integrity throughout the conversion process. With extremely low THD+N performance, the card is designed for transparent signal reproduction. Its wide dynamic capability is particularly valuable for live music and detailed acoustic sources.
Advanced Analogue Design
The card incorporates dedicated analogue circuitry designed around DiGiCo's Stadius conversion philosophy. Ultra-low-noise linear power supplies help provide clean and stable power to the analogue stage. Maximized-performance operational amplifiers contribute to accurate and transparent signal handling. A fully shielded analogue section helps protect sensitive circuitry from unwanted interference. MUSE acoustic-series blocking capacitors and capacitor-damping technology further support the carefully engineered signal path.
Fast and Transparent Conversion
The MOD-SDR-ADC32B is engineered for rapid analogue-to-digital conversion with a conversion time of approximately 104 μs. Fast conversion helps maintain responsive system operation while preserving accurate timing throughout the signal chain. Its low-latency architecture makes it well suited to professional live sound applications. The card is designed to maintain signal integrity without introducing unnecessary coloration.
Product Specifications:
Product Type: 8-Channel 32-Bit Mic Pre-Amp Card
Compatibility: DiGiCo SD Rack
Number of Channels: 8
Input Type: Microphone Input
Input Connectors: 8 × XLR
A/D Conversion: 32-bit
ADC Architecture: Twin 32-bit ADC per channel
Sample Rates: 48 kHz / 96 kHz
Audio Path: Fully differential
Conversion Time: 73 µs
Gain Range: -20 dB to +60 dB
Phantom Power: +48 V
Dynamic Range A-D: 123 dBA
EIN: 128 dB
A-A Noise: -90 dBu
A-D Noise: -120 dBFS
THD+N: <0.002% at 0 dB, 1 kHz
A-A Frequency Response: 20 Hz to 20 kHz, ±0.15 dB
A-D Frequency Response at 48 kHz: 20 Hz to 22.5 kHz, ±0.1 dB
A-D Frequency Response at 96 kHz: 20 Hz to 44.5 kHz, ±0.1 dB
CMRR at 1 kHz: 77 dB
Phase Response: 0° phase shift from 20 Hz to 22 kHz
Power Supply: Dedicated ultra-low-noise linear analogue power supplies
Phantom Power Supply: Dedicated +48 V supply
Analogue Stage: Fully shielded
Clipping: Precision clipping with reduced artefacts
Control: Gain and phantom power controllable from console or software
Console Integration: Integrated into console channel strip
Construction: Roadworthy metal XLR connectors
Product Weight: 2.03 lbs.
Product Dimensions (L x W x H): 11.20" x 1.20" x 11.61"