RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black)

RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black)

RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black)

B&H # RDDBSH1 MFR # DB-SH1
RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black)

RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black) Back View

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Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 7-14 business days 
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Product Highlights

  • Panel-Mounted Headphone Amplifier
  • Wall-Mounted Headphone Amplifier
  • Long-Life VCA Stereo Level Control
  • Balanced or Unbalanced Inputs
  • Switch-Selectable Input Sensitivity
  • Switch-Selectable Mono (Left) or Stereo
  • Drive High or Low Impedance Headsets
  • Decora Mounting Possibilities
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  • 1Description
The black version of the Radio Design Labs DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. The DB-SH1 is ideally suited to applications as diverse as language translation, museums, interview studios and music stores.

The module mounts conveniently in a precut opening in a wood or metal enclosure or in various RDL mounting accessories. The DB-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 side 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 ¼" (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.
In the Box
RDL DB-SH1 Stereo Headphone Amplifier - Decora Panel with User Level Control (Black)
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description
    Inputs 10 kΩ 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 Normal: 10 mW into 100 Ω
    Maximum: 50 mW into 100 Ω
    THD + N < 0.5% at 1 kHz
    Frequency Response 30 to 20,000 Hz (± 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 to 20,000 Hz)
    Operating Temperature 32 to 131°F (0 to 55°C)
    Power Requirement 24 VDC at 50 mA
    Dimensions Not specified by the manufacturer
    Weight WEEE: 0.330 lb (0.149 kg)
    Packaging Info
    Package Weight 0.5 lb
    Box Dimensions (LxWxH) 4.9 x 4.3 x 2.2"

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