Radio Design Labs D-SH1M
Stereo Headphone Amplifier with 1/8" TRS Jack in White

OUR PART #  D-SH1M


The D-SH1M is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. It is ideally suited to applications as diverse as language translation, museums, interview studios and music stores.

The D-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.

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.

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. Module operation is from a 24 Vdc ground referenced power supply.

Features:

  • 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
  • Output: Mini-Jack

Specifications:

  • 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: 10 mW into 100 O (normal rated); 50 mW into 100 O (maximum)
  • 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
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Usually ships in 7-14 business days.
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Usually ships in 7-14 business days.
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Usually ships in 7-14 business days.
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Radio Design Labs D-SH1M
Stereo Headphone Amplifier with 1/8" TRS Jack in White

OUR PART #  D-SH1M

Product Information:

The D-SH1M is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. It is ideally suited to applications as diverse as language translation, museums, interview studios and music stores.

The D-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.

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.

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. Module operation is from a 24 Vdc ground referenced power supply.

Features:

  • 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
  • Output: Mini-Jack

Specifications:

  • 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: 10 mW into 100 O (normal rated); 50 mW into 100 O (maximum)
  • 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
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Radio Design Labs' RM-D9 is a 3 RU rack panel that allows the mounting of 9 Decora products, such as RDL remote controls and D-Series connector plates. The installer can label each installed module behind an included protection lens.The ...
Wall Mount Chasis for Decora
Radio Design Labs DC-2G Wall Mount Chasis for Decora
The DC-2G desktop chassis holds two Decora®-style products, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a tabletop or on a ...
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Can be mounted in International or US walls and cabinets. Features side and rear mounting holes which secure the box in new construction. Also has folding tabs which secure the box in an existing wall or cabinet.Dimensions: Height: 4.125 ...
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For use with RDL R style remote controls and D style connector plates; Mount with RDL WB-1U Universal Wall Box.
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The DC-2W white desktop chassis holds two Decora®-style products, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a tabletop or on a ...

Usually ships in 7-14 business days.
Need it sooner? Call us!
1RU Rack Panel Mount for 3 Decora Models
Radio Design Labs RM-D3 1RU Rack Panel Mount for 3 Decora Models
Radio Design Labs' RM-D3 is a 1 RU rack panel that allows the mounting of 3 Decora products, such as RDL® remote controls and D-Series connector plates. The installer can label each installed module behind an included protection lens. The ...

Usually ships in 7-14 business days.
Need it sooner? Call us!
Wall Mount Chasis for Decora
Radio Design Labs DC-1G Wall Mount Chasis for Decora
The DC-1G desktop chassis holds one Decora®-style product, including RDL remote controls and connector plates. Installation is facilitated using the included mounting plate, which allows the chassis to mount to a tabletop or on a vertical ...

Usually ships in 7-14 business days.
Need it sooner? Call us!
Dual-Gang Universal Wall Box
Radio Design Labs WB-2U Dual-Gang Universal Wall Box
Can be mounted in International or US walls and cabinets. Features side and rear mounting holes which secure the box in new construction. Also has folding tabs which secure the box in an existing wall or cabinet.Dimensions: Height: 4.125 ...

Usually ships in 7-14 business days.
Need it sooner? Call us!
Double Cover Plate/Gray
Radio Design Labs CP-2/G Double Cover Plate/Gray
For use with RDL R style remote controls and D style connector plates; Mount with RDL WB-2U Universal Wall Box. 

Usually ships in 7-14 business days.
Need it sooner? Call us!
Single-Gang Gray Wall Plate for SMB-1, DC-1, WB-1U, Decora-Style Products
Radio Design Labs CP-1/G Single-Gang Gray Wall Plate for SMB-1, DC-1, WB-1U, Decora-Style Products
Radio Design Labs' CP-1G is for use with RDL SMB-1, DC-1 and WB-1U for mounting RDL remote controls and jack panels.  Compatible with Decora style products and American electrical boxes.Height: 4.55" (11.6 cm)Width: 2.80" (7.1 cm)

Usually ships in 7-14 business days.
Need it sooner? Call us!

Click to download

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