Precision Audio and AV Interface Products

Radio Design Labs

HR-DAC1 Digital to Analog Converter - 24 bit 192 kHz

  • 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
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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 Ω terminated; the S/PDIF coaxial and AES-3ID jacks are 75 Ω 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.

Inputs (4):
110 Ω AES/EBU XLR, transformer isolated; S/PDIF optical;
75 Ω S/PDIF coaxial phono jack; 75 Ω AES-3ID BNC
Outputs (6):
Left and Right: 150 Ω 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:
8543.70.9860

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HALF RACK

RDL Half-Rack products are studio quality electronic equipment in durable metal enclosures ½ rack width, 1RU in height. This series includes both digital and analog products with front-panel user controls and indicators. Connectors are located on the rear panel. Chassis are finished in black powder coat. The front panels feature a full color reverse-printed polycarbonate laminate surrounded by raised end caps and the product label track. The distinctive appearance of the Half-Rack products complements rack mounting or standalone use.

Available RDL accessories permit one or two Half-Rack products to be mounted in 1 RU. Rack mounting is easy and takes only seconds. The product drops into the rack adapter, slides forward and is secured by tightening four screws. For standalone use, each product is supplied with rubber feet secured by screws.

Attractive styling, superior performance, high quality panel controls and connectors, and durable construction make RDL Half-Rack products a preferred long-term resource for system design solutions. HALF RACK SERIES modules are designed and manufactured in the U.S.A.

HR-DAC1 HR-DAC1