Dolby DP503 Two-Channel Digital Audio Encoder
The Dolby DP503 is a two-channel digital audio encoder designed for professional audio applications. It efficiently encodes high-quality audio signals into a digital format, suitable for broadcast, recording, and post-production environments. It ensures pristine audio quality and reliable performance.
- Model
- Dolby DP503
- Calibration
- Available on request
- Price · starting from
- $1,100
- Status
- In stock
- RFQ ref
- DP503
This unit
The Dolby DP503 Two-Channel Digital Audio Encoder is a professional-grade audio processing unit designed for high-quality encoding in broadcast, production, and telecommunications environments. This 1U rack-mount encoder supports Dolby AC-2, Dolby Digital (AC-3), and MPEG-1 Layer II algorithms across data rates from 40 kbps to 448 kbps, with selectable sampling rates of 32 kHz, 44.1 kHz, or 48 kHz. The unit delivers exceptional audio fidelity with dynamic range exceeding 100 dB and THD+N performance down to 0.01% for Dolby Digital at 1 kHz.
Technical Specifications Audio Processing
Supported algorithms: Dolby AC-2, Dolby Digital (AC-3), MPEG-1 Layer II
Data rates: 40 kbps to 448 kbps
Sampling rates: 32 kHz, 44.1 kHz, 48 kHz (Dolby AC-2 limited to 48 kHz)
Channel configurations: Single-channel, dual-mono, joint-stereo
A/D converters: 20-bit resolution
Frequency response: 20 Hz ±0.25 dB (lower limit); upper limit varies with data rate
Dynamic range: >100 dB
Channel separation: >0.2 dB
THD+N (Dolby Digital): <0.01% @ 1 kHz; <0.02% from 20 Hz to upper response limit
THD+N (AC-2, MPEG-1 II): <0.1% @ 1 kHz; 55 dB (50 Hz–10 kHz)
Data/control: RS-449 (37-pin); RS-232 (three 9-pin connectors); TTL status outputs (9-pin)
Clock: Internal ±25 ppm (RS-422 output); external ±100 ppm (RS-422 input) Physical & Environmental
Form factor: 1U rack mount
Dimensions: 44 mm H × 483 mm W × 324 mm D
Weight: 4.8 kg
Display: 16-character LCD with control keys; LED status indicators
Operating temperature: 0–50°C, natural convection
Storage temperature: -40–70°C
Operating humidity: <90%, non-condensing
Key Features
Multiple algorithm support for broadcast and telecommunications workflows
Precise frequency response and low distortion for transparent encoding
Flexible analog input impedance selection and adjustable peak levels
Dual digital audio inputs (AES/EBU and S/PDIF) with independent timing control
Comprehensive status monitoring and remote control via serial interfaces
Typical Applications
Broadcast audio encoding and distribution
Production facility signal processing
Telecommunications audio transport
ISDN-based audio transmission systems
Compatibility & Integration The DP503 integrates with professional audio workflows via standard AES/EBU and S/PDIF digital inputs, or active balanced analog XLR inputs. Serial interfaces enable remote operation, auxiliary data handling, and ISDN terminal adapter control. FCC Part 15 Class A and Industry Canada compliance support North American deployment.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 20 Hz to upper limit (varies with data rate) | Voltage / Current Range: 50–60 Hz |
Dolby DP503 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Dolby DP503. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Dolby DP503 price
This Dolby DP503 is listed at $1,100. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Dolby DP503 calibration cost
NIST-traceable calibration for the Dolby DP503 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
