RDL®

DB-SH1

Stereo Headphone Amplifier - Decora® panel with user level control

SKU: DB-SH1
  • Panel-Mounted Headphone Amplifier
  • Wall-Mounted 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
  • Convenience of Decora® Mounting Possibilities
  • How to Customize
    Recommended Power Supply ( Not Included )
    PS-24AS (USA)PS-24AX (International)

    Description

    The DB-SH1 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.

    Specifications

    Inputs (2):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 Signal (normal rated):10 mW into 100 Ω
    Output Signal (maximum):50 mW into 100 Ω
    THD+N:< 0.5% @ 1 kHz
    Frequency Response:30 Hz to 20 kHz (± 2 dB)
    Noise: 60 dB (50 to 120 Hz)
    Crosstalk:Below noise floor (20 Hz to 20 kHz)
    Ambient Operating Environment:0° C to 55° C
    Power Requirement:GROUND-REFERENCED 24 Vdc @ 50 mA
    Package Type:Cardboard Box
    Package Dimensions:3.625 x 4.625 x 2.125 in.
    Shipping Weight:0.475 lbs.
    WEEE weight:0.325 lbs.
    Tariff code:8543.70.9860

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    Dimensions

    DB-SH1

    Downloads

    DocumentsFormat
    DatasheetPDF
    CAD FilesUnitsSizeFormat
    Engineering Functional BlockAmerican3.99 KBDXF
    Panel Diagram - FrontAmerican8.07 KBDXF
    Panel Diagram - RearAmerican12.33 KBDXF
    Panel Diagram - RearMetric12.49 KBDXF
    Panel Diagram - FrontMetric8.31 KBDXF
    High Res ImagesFormat
    db-sh1.zipTIF
    Declaration of Conformity
    Download

    Diagrams

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