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Radio Design Labs RU-SH1
Stereo Headphone Amplifier

OUR PART #:  RU-SH1

Radio Design Labs' RU-SH1 is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources.
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Our Price: $159.71
List Price: $213.64
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Radio Design Labs RU-SH1
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Radio Design Labs' RU-SH1 is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. The module mounts in RACK-UP series rack mounts or in various RDL® mounting accessories. The RU-SH1 is a dual channel headphone amplifier with balanced/unbalanced left and right inputs. Each input accepts operating levels between -20 dBV and +20 dBu. Two recessed slide switches located on the top of the rear enclosure are set prior to mounting the module. One switch is provided for setting the input sensitivity. The mode switch selects between stereo and mono operation. In the mono position, the left input is used to drive both output channels. When the module is used in a monaural system, only the left channel input must be wired.

The front panel level control is a long-life potentiometer controlling matched VCAs. Audio does not pass through this control, assuring years of noise-free level adjustment. The output amplifiers deliver more than 50 mW into either high or low impedance headphones through a durable, metal 1/4" (6.3 mm) standard headphone jack. Module operation is from a 24 Vdc ground-referenced power supply. It can also operate from a 12 Vdc supply with a 6 dB reduction in headroom and a maximum output power of 10 mW.

NOTE: Radio Design Labs' PS-24AS power supply is NOT included but is required in order to power this product.  Please see the "Accessories" tab or click here for more information on the PS-24AS power supply.

Features:

  • Rack-Mounted Headphone Amplifier
  • RACK-UP® Series Headphone Amplifier
  • Integral Long-Life VCA Stereo Level Control
  • Balanced or Unbalanced Inputs
  • Switch-Selectable Input Sensitivity
  • Switch-Selectable Mono (Left) or Stereo Operation
  • Amplifier To Drive High or Low Impedance Headsets

Typical Performance:

  • Inputs (2): 10 kO balanced or unbalanced bridging
  • Input Level: +4 dBu nominal (Low input sensitivity); -15 dBV nominal (High input sensitivity)
  • Maximum Input Level: +21 dBu (Low input sensitivity); +3 dBu (High input sensitivity)
  • Output Signal (normal rated): 10 mW into 100 O
  • Output Signal (maximum): 50 mW into 100 O
  • THD+N: < 0.5% @ 1 kHz
  • Frequency Response: 30 Hz to 20 kHz (+/- 2 dB)
  • Noise: < -70 dB below normal operating level
  • Gain: User-adjustable on front panel; 18.5 dB (maximum, High input sensitivity); Unity (maximum, Low input sensitivity)
  • CMRR: > 60 dB (50 to 120 Hz)
  • Crosstalk: Below noise floor (20 Hz to 20 kHz)
  • Power Requirement: GROUND-REFERENCED, 24 to 33 Vdc @ 50 mA
Rack Adapter for (3) RACK-UP Series Modules
Radio Design Labs RU-RA3R Rack Adapter for (3) RACK-UP Series Modules
The RU-RA3R from RDL rack mounts (3) RACK-UP modules in fixed or mobile installations. Metal RACK-UP series products drop into the chassis, slide into position and are secured by tightening two screws provided with the RACK-UP product ...
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10.4" Rack Mount for 1 Rack-Up Series Product
Radio Design Labs RU-HRA1 10.4" Rack Mount for 1 Rack-Up Series Product
Radio Design Labs' Ru-HRA1 rack mounts 1 RACK-UP module or mounting frame for AMS accessories.  Fits 10.4" racks.Shipping Weight: 0.34 lbsPackage Dimensions: 2" x 2" x 12.25" (5.08 x 5.08 x 31.12 cm)
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24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs' PS-24AS is a 24 VDC/500 mA switching power supply with a North American AC plug. Compatible with various RDL products.Radio Design Labs PS-24AS Specifications: Input: 100 to 240 VAC Output: 24 Vdc, 500 mA (UL, ...
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DIN Rail Adapter for Rack-Up
Radio Design Labs DRA-35R DIN Rail Adapter for Rack-Up
The DRA-35R provides DIN rail mounting for any RDL RACK-UP® or MAX RACK-UP module, allowing full access to the front and rear panels of the mounted modules. The DRA-35R attaches to a 35 mm DIN Rail. 
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