Overview
The HR-DAC1 is the ideal choice in installations requiring high quality analog audio from an AES/EBU, AES-3ID or S/PDIF digital audio source. The HR-DAC1 automatically detects a valid input on any of the four input jacks: S/PDIF optical, S/PDIF coaxial, AES-3ID or AES/EBU. The AES/EBU input is 110 ? terminated; the S/PDIF coaxial and AES-3ID jacks are 75 ? terminated. A front-panel LOCK LED indicates the presence of a valid digital audio source without any phase-lock or bit errors. Sample rates from 32 kHz to 192 kHz are supported with front-panel LEDs to indicate standard digital audio rates of 44.1 kHz, 48 kHz, 96 kHz and 192 kHz. Professional operating stability is achieved with RDL's proprietary Sure-Lok™ latch-up auto recovery.
The digital input is converted to stereo audio using high speed delta-sigma conversion, digital filtering and filtered wideband analog drivers. The high performance, low-noise converters are supplemented with digitally controlled analog gating to produce unparalleled performance. The LEFT and RIGHT output levels are individually adjustable using front-panel knobs. A dual-LED VU meter displays the output level of each channel to facilitate level adjustments. Balanced +4 dBu audio outputs are provided on a rear-panel detachable terminal block and on XLR jacks. Unbalanced -10 dBV outputs are provided on phono jacks.
The HR-DAC1 is powered from 24 Vdc, which may be connected through the detachable terminal block or through the dc power jack. A front-panel power switch is provided.
Features
- Broadcast Quality Audio Digital to Analog Conversion
- Input: AES/EBU, Coaxial or Optical S/PDIF, AES-3ID
- Outputs: Balanced and Unbalanced Stereo Audio
- Adjustable Audio Output Gain Trim
- Dual-LED Audio Output Level VU Metering
- Operation Up to 24 bits, 192 kHz
- Exclusive Sure-Lok™ Auto-Recovery Sentinel
- Transformer Isolated AES/EBU Input
- Automatic Sample Rate Detection with Indicators
- Digital Signal Lock Indicator for Valid Inputs
Specifications
| Inputs (4) | 110 ? AES/EBU XLR, transformer isolated; S/PDIF optical; 75 ? S/PDIF coaxial phono jack; 75 ? AES-3ID BNC |
| Outputs (6) | Left and Right: 150 ? bal. XLR and terminal block, +4 dBu; -10 dBV unbal phono jack |
| Sample Rate | 32 kHz to 192 kHz |
| Resolution | 16 to 24 bits |
| Frequency Response | 5 Hz to 24 kHz (± 0.2 dB into high impedance load) |
| THD+N | < 0.002% (20 Hz to 20 KHz, below +22 dBu) |
| Harmonic attenuation | 2nd: -105 dB; 3rd: -108 dB; 4th, 6th: -115 dB; 5th, 7th: -110 dB; above 7th: <-115 dB, typical |
| Crosstalk | < -100 dB (5 Hz to 3 kHz); < -90 dB (3 kHz to 20 kHz) |
| Output Level | Adjustable OFF to +24 dBu (0 dBFS); Left and Right |
| Phase L to R, R to L | ±0.15° (5 Hz to 20 kHz) |
| Residual Noise | < -100 dB (10 to 20 kHz, -120 dBFS input) < -100 dB (10 to 20 kHz, -120 dBFS input) < -110 dB (locked to digital input, digital audio off) |
| Dynamic Range | > 110 dB (resolution 24-bit unweighted) |
| Indicators (10) | POWER LED, blue; LOCK LED, green; RATE: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz; dual-LED VU meters, left and right |
| Standards | AES3-2003, IEC60958 |
| Ambient Operating Environment: 0° C to 55° C | |
| Power Requirement | GROUND-REFERENCED 24 Vdc @ 175 mA |
| Package Type | Cardboard Box |
| Package Dimensions | 9.5 x 7 x 2.25 in. |
| Shipping Weight | 2.575 lbs. |
| WEEE weight | 2.225 lbs. |
| Tariff code | 8518.40.2000 |
