RDL HR-ADC1 Analog to Digital Audio Converter

RDL HR-ADC1 Analog to Digital Audio Converter

MSRP: $1,184.36
$888.27
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SKU:
RDL-HRADC1
Availability:
Normally Ships From Manufacturer, Contact us for Pricing and Availability
Type:
Analog to Digital

Overview

The HR-ADC1 is a broadcast quality A/D converter that provides exceptional audio accuracy and clarity with any audio source or style. Superior analog performance fine tuned through audiophile listening practices produces very low distortion (0.0006%), exceedingly low noise (-135 dB) and remarkably flat frequency response (+/- 0.05 dB). This performance is coupled with unparalleled metering flexibility and programmability with average mastering level monitoring and peak value storage. With external sync capability plus front-panel settings up to 24 bits and up to 192 kHz sample rate, the HR-ADC1 is the single instrument needed for A/D conversion in demanding applications.

The HR-ADC1 accepts balanced +4 dBu or unbalanced -10 dBV stereo audio through rear panel XLR or RCA jacks or through a detachable terminal block. An external AES/EBU, AES-3ID or S/PDIF sync source may be connected through a rear-panel XLR, RCA or BNC jack. Digital audio outputs are provided in AES/EBU, AES-3ID or S/PDIF formats. The rear-panel switch-selected output format is available on the corresponding XLR, RCA or BNC jack.

Front panel LEFT and RIGHT controls permit input gain adjustment to produce the desired average signal level for the digital conversion. The zero decibel (0 dB) reference level of the audio metering string may be set to -14, -16, -18 or -20 dBFS. The meter may also be set to display peak or VU average audio levels. Audio peaks between -10 dBFS and 0 dBFS (clipping) are displayed separately to the right of the standard audio level meter. The peak display may be set to either flash or store the peak values. Flash duration settings provide for instantaneous, 1/3 second hold or 2/3 second hold. If the peak display is set to STORE then the highest peak recorded remains displayed until the PEAK RESET button is pushed.

The HR-ADC1 provides rear-panel inputs for an external sync source. If valid external sync is connected, the EXTERNAL SYNC LOCK LED illuminates. The front-panel SYNC button sets the converter to synchronize to the external source. When external sync is not used, the HR-ADC1 converts at the sample rate selected using the front-panel RATE button. The number of BITS is user-selectable on the front panel. The peak LEDs double as the programming indicators during setup. The MODE MENU has four selection categories: METERING RSP (peak or average response) for the main audio meter; METERING 0 REF (sets meter scaling to -14, -16, 18 or -20 dBFS for a 0 dB reading); DISPLAY BRT (sets LED display brightness for ambient light); DISPLAY PEAK (sets peak LED string to FLASH, hold 1/3 second, hold 2/3 second, or STORE the maximum peak reading. Programming selections are automatically stored after five seconds and are retained in memory when the HR-ADC1 is re-powered.

The HR-ADC1 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 Analog to Digital Audio Conversion
  • Inputs: Balanced and Unbalanced Stereo Audio
  • Output: AES/EBU, Coaxial S/PDIF, AES-3ID
  • External Sync Inputs: AES/EBU, Coaxial S/PDIF, AES-3ID
  • Adjustable Audio Input Gain Trim
  • Peak or Average Ballistic Metering with Selectable 0 dB Reference
  • Peak Metering with Selectable Hold or Peak Store Modes
  • Operation Up to 24 bits, 192 kHz
  • Selectable Internally Generated Sample Rate and Bit Depth
  • Front-Panel External Sync Enable Selector and Indicator
  • Sample Rate, Bit Depth, External Sync Lock Indicators
  • Transformer Isolated AES/EBU Output

 

Specifications

 

  • Audio Inputs (5):Balanced (2): 30 kΩ XLR; Balanced terminal block; Unbalanced (2): 30 kΩ RCA jacks
  • Input Level:Left and Right front-panel user controls, Balanced: +4 dBu nominal; +2 dBu to +26 dBu;Unbalanced: -10 dBV nominal; -11 dBV to +11 dBV (for 0 dBFS)
  • External Sync Inputs (3):110 Ω AES/EBU XLR, xfmr isolated; 75 Ω S/PDIF RCA jack; 75 Ω AES-3ID BNC
  • Outputs (3):110 Ω AES/EBU XLR, transformer isolated; 75 Ω S/PDIF RCA jack; 75 Ω AES-3ID BNC (selectable)
  • Sample Rates:44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
  • Resolution:16, 20 or 24 bits (front-panel selectable)
  • Frequency Response:10 Hz to 20 kHz (± 0.125 dB); 20 Hz to 20 kHz (± 0.05 dB)
  • THD+N:< -105 dBFS (0.0006%, 20 Hz to 20 KHz, internal sample rate)
  • Crosstalk:< -115 dB (50 to 60 Hz); < -105 dB (15 kHz)
  • Residual Noise:< -135 dB (10 Hz to 20 kHz)
  • Dynamic Range:> 114 dB (resolution 24-bit unweighted)
  • Programmable Features Menus (4):Metering Ballistic; Meter 0 Reference; Peak hold/store; Display intensity
  • Indicators (49):Power; External sync lock; Sample rate (6); BITS (3): Audio metering (26); Peak metering (12)
  • Power Requirement:24 Vdc @ 300 mA, Ground-referenced
  • Dimensions:Height: 1.7 in, 4.3 cm; Length: 8.6 in, 20.6 cm; Depth: 4.59 in, 11.66 cm
  • Package Type:Cardboard Box
  • Package Dimensions:9.5 x 7 x 2.25 in.
  • Shipping Weight:2.575 lbs.
RDL Three-Year Limited Warranty Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge, and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser. RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized to assume for RDL any other liability in connection with RDL products.
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