Prestel DSP-6464M Digital Audio Information Processor User Manual
Quick guide for the Prestel DSP-6464M digital audio processor, covering system features, technical specifications, control interfaces, and hardware configuration.
Table of contents
Quick guide from the manual
The Prestel DSP-6464M is a high-performance digital audio processing server designed for large-scale network audio applications. It features a Linux-based thermal computing platform, dual-host backup capabilities, and a modular architecture supporting up to 8 audio I/O cards. The system is managed via a graphical user interface supporting software, web, and mobile control.
Product Features
- 64x64 network transmission with backup.
- 8 card slots for flexible I/O configuration (Analog, AEC, USB, VoIP).
- Built-in multi-channel audio player with 64G storage (WAV/MP3).
- Dual power supply redundancy (AC/DC).
- Support for custom Lua scripts for system expansion.
Hardware Configuration
The server provides 8 card slots that can be equipped with various modules:
- DA-AI4: 4-channel microphone/line input card.
- DA-AO4: 4-channel line output card.
- DA-EI4: 4-channel AEC (Echo Cancellation) input card.
- DA-USB2: 2x2 USB sound card.
- DA-VoIP4: 4-channel IP voice card.
Control and Indicators
The front panel includes a 3.12-inch flip display, power and status indicators, and touch-based control buttons. Rear panel connectivity includes:
- RS232/485 (6Pin 3.81 mm Phoenix).
- GPIO (16Pin 3.81 mm Phoenix).
- Dante Primary/Secondary (RJ45 1000Mbps).
- Network control port.
- AC mains power (IEC connector).
- DC backup power (24VDC 2A 2pin 5.81 mm Phoenix).
Technical Specifications
- Frequency Response: 20Hz~20kHz (±0.2dB).
- Dynamic Range: >118dB.
- Total Harmonic Distortion (THD+N):<0.002%.
- Input Impedance: 5.5kΩ.
- Operating Temperature: 0~45°C.
- Power Requirements: 110VAC-240VAC, 50~60Hz.
Practical help
Common problems
Ensure both main and subordinate servers have the exact same configuration to allow the heartbeat signal and mirror backup mechanism to function correctly.
Verify that the correct audio I/O cards (e.g., DA-AI4, DA-AO4) are installed in the 8 available slots and configured via the control software.
Before use
- Ensure the power supply matches the 110-240VAC range.
- Connect the device to a stable network environment for Dante and control communication.
- Install the required control software on a computer to manage system parameters.
- Verify that all required audio cards are properly seated in the 8 slots.
- Check that the operating environment is within 0-45°C and below 85% humidity.
Specs in practice
- 64x64 Network Channel
- The capacity for simultaneous network audio transmission streams.
- AEC (Echo Cancellation)
- Specialized processing to remove acoustic echoes, supported via independent modules.
- Dual Power Redundancy
- The unit supports both AC mains and a 24VDC backup power source for uninterrupted operation.
Model compatibility
- Supports Dante protocol via RJ45 ports.
- Compatible with software, web, and mobile control interfaces.
- Supports custom Lua scripts for system customization.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.