The DS-SH1 is used in applications needing earphones of any impedance to be driven from consumer or expert audio sources. The DSSH1 is ideally matched to applications as diverse as language translation, museums, interview studios and music stores. The module installs conveniently in a precut opening in a wood or metal enclosure or in numerous RDL mounting devices. The DS-SH1 is a dual channel headset amplifier with balanced/unbalanced left and best inputs. Each input accepts operating levels in between 20 dBV and 20 dBu. Two recessed slide changes 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 chooses in 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, just the left channel input must be wired. The front panel level control is a long life potentiometer managing matched VCAs. Audio does not pass through this control, assuring years of noise complimentary level adjustment. The output amplifiers provide more than 50 mW into either high or low impedance earphones through a resilient, metal 6.3 mm conventional headset 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. - Power Supply Consisted of
Panel-Mounted Headphone Amplifier.
Wall Mounted Headphone Amplifier.
Integral Long Life VCA Stereo Level Control.
Balanced or Unbalanced Inputs.
Switch Selectable Input Sensitivity.