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Radio Design Labs ST-SH2
Stereo Headphone Amplifier

OUR PART #  STSH2

Our Price: $127.19
List Price: $170.13
You save 25%! (Low Price Guarantee)
In Stock

Recommended Accessories

Radio Design Labs' ST-SH2 is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. For fixed level installations not requiring user volume control, the ST-SH2 is wired to the audio source and to a headphone jack. Frequently, it is desirable to mount a volume knob by the headphone jack. The LEVEL ADJUST terminals (L) and (R) may be wired to the respective wipers of a stereo 10 kO potentiometer to provide volume adjustment. It is recommended that the ST-SH2 be located less than 39" (1 m) from the jack and volume control.

The exceptional low noise (better than 100 dB below operating level), low distortion, audio clarity and excellent crosstalk performance makes this module ideally suited to a wide variety of demanding audio applications. Use this module in conjunction with other RDL® modules as part of a high quality, flexible audio/ video system.

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:

  • Stereophonic Headphone Amplifier
  • Provision for External Stereo Level Control
  • Balanced or Unbalanced Input
  • Bridge a Line and Feed Headsets
  • Amplifier To Drive High or Low Impedance Headsets

Specifications:

  • Inputs (2): 10 kO balanced or unbalanced, bridging
  • Input Signal: -20 dBu (-22 dBV) to +6 dBu (for normal output level: +4 dBu, 100 ù) -10 dBu to +16 dBu (for 250 mW, 8 O output)
  • Output Load Impedance: 8 O to 5 kO (drives low or high impedance headphones)
  • Output Signal (normal rated): +4 dBu into 100 O
  • Output Signal (maximum): 250 mW into 8 O, 20 Vp-p into 2 kO
  • THD+N: < 0.005% (0.0015% typical @ 1 kHz)
  • Frequency Response: 20 Hz to 40 kHz (+/- 0.25 dB)
  • Noise: < -100 dB below normal operating level
  • Total Dynamic Range: > 115 dB
  • Gain: Adjustable from -2 to 24 dB
  • CMRR: > 50 dB at 100 Hz
  • Crosstalk: < -65 dB (10 Hz to 20 kHz); < -80 dB @ 1 kHz
  • Power Requirement: GROUND-REFERENCED, 24 to 33 Vdc @ 175 mA
Stick-On Mounting Rack for 10 UnitsRadio Design Labs SR-10 Stick-On Mounting Rack for 10 Units

Radio Design Labs' STR-10 Racking System holds up to 10 STICK-ON units.  It holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or the top (depending on where the adjustment is located on ...

In Stock

Free Shipping Available

Our Price:$64.12List Price: $85.76You save 25%!

24 VDC 500mA Switching Power SupplyRadio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply

Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...

In Stock

Our Price:$22.93List Price: $30.67You save 25%!

Din Rail Adaptor for STICK-ON Radio Design Labs DRA-35S Din Rail Adaptor for STICK-ON

The DRA-35S is a 35 mm DIN rail mounting bracket that provides positive mounting for any RDL STICK-ON® module. The oblique mounting angle of the DRA-35S allows an installer to mount several STICK-ON modules to a single DIN rail. Access to ...

In Stock

Our Price:$19.02List Price: $22.44You save 15%!

Kit to Mount ST, TX Series Modules on FP PanelRadio Design Labs MB3-RDL Kit to Mount ST, TX Series Modules on FP Panel

TX or STICK-ON Module fastens to MB-3 which slides into FP-RRA/H track.

In Stock

Our Price:$5.01List Price: $6.70You save 25%!

Mounting Kit for STICK-ON, TX, or Rack-Up moduleRadio Design Labs MB1-RDL Mounting Kit for STICK-ON, TX, or Rack-Up module

Two mounting brackets mounts a STICK-ON, TX, or Rack-Up module to a flat surface.

In Stock

Our Price:$3.39List Price: $4.00You save 15%!

Rackmount Kit for 10 Stick-On UnitsRadio Design Labs STR-19B Rackmount Kit for 10 Stick-On Units

Radio Design Labs' STR-19B Racking System holds up to 10 STICK-ON unitss in a 19 inch rack and only occupies two rack spaces. The STR-19B holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or ...

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

Free Shipping Available

Our Price:$159.34List Price: $213.14You save 25%!

Rackmount System for 12 Stick-On UnitsRadio Design Labs STR-19A Rackmount System for 12 Stick-On Units

Radio Design Labs' STR-19A Racking System holds up to 12 STICK-ONs in a 19" rack and only occupies two rack spaces.

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

Free Shipping Available

Our Price:$134.02List Price: $179.28You save 25%!

Single RACK-UP Mounting Bay Utility ChassisRadio Design Labs UC-1 Single RACK-UP Mounting Bay Utility Chassis

Radio Design Labs' UC-1 is an ULTRASTYLE design tabletop chassis for mounting RDL modules and accessories. The front panel features a single RACK-UP mounting bay. The rear panel has an identical mounting bay and is supplied with matching ...

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

Our Price:$84.01List Price: $112.37You save 25%!

Mounting Frame for Stick/TXRadio Design Labs SR-4 Mounting Frame for Stick/TX

Radio Design Labs' SR-4 is a universal module chassis that can mount to a backboard, wall or nearly any other support. It provides mounting for 4 STICK-ON power amplifiers or 7 standard STICK-ON modules. TX ™ modules may also be mounted. ...

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

Our Price:$83.21List Price: $111.30You save 25%!

STICK-ON Series 19"W Mounting Rack for up to12 ModulesRadio Design Labs SR-12A STICK-ON Series 19"W Mounting Rack for up to12 Modules

Radio Design Labs' SR-12A chassis can be mounted in a rack or on a backboard to provide mounting of 12 STICK-ONs.

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

Our Price:$64.12List Price: $85.76You save 25%!

Single Stereo Headphone JackRadio Design Labs ACB1 Single Stereo Headphone Jack

Features all metal construction with single stereo headphone jack, ready for wiring through the nylon bushing opening.

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

Our Price:$29.39List Price: $39.31You save 25%!

Mounting Strip for STICK-ON UnitsRadio Design Labs Smk 12 Mounting Strip for STICK-ON Units

The SMK-12 allows removable surface (up to 6 units) or edge (typically 12, max. 16) mounting of STICK-ON units. They can be fastened to its surface using screws or adhesive foam pads.

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

Our Price:$27.45List Price: $36.72You save 25%!

Detachable Terminal BlockRadio Design Labs Dtb Rdl Detachable Terminal Block

Use DTB's to quickly detach and reattach wiring harness to STICK-ON units.

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

Our Price:$6.77List Price: $8.00You save 15%!

Click to download

Radio Design Labs ST-SH2
Stereo Headphone Amplifier

OUR PART #  STSH2

Product Information:

Radio Design Labs' ST-SH2 is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. For fixed level installations not requiring user volume control, the ST-SH2 is wired to the audio source and to a headphone jack. Frequently, it is desirable to mount a volume knob by the headphone jack. The LEVEL ADJUST terminals (L) and (R) may be wired to the respective wipers of a stereo 10 kO potentiometer to provide volume adjustment. It is recommended that the ST-SH2 be located less than 39" (1 m) from the jack and volume control.

The exceptional low noise (better than 100 dB below operating level), low distortion, audio clarity and excellent crosstalk performance makes this module ideally suited to a wide variety of demanding audio applications. Use this module in conjunction with other RDL® modules as part of a high quality, flexible audio/ video system.

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:

  • Stereophonic Headphone Amplifier
  • Provision for External Stereo Level Control
  • Balanced or Unbalanced Input
  • Bridge a Line and Feed Headsets
  • Amplifier To Drive High or Low Impedance Headsets

Specifications:

  • Inputs (2): 10 kO balanced or unbalanced, bridging
  • Input Signal: -20 dBu (-22 dBV) to +6 dBu (for normal output level: +4 dBu, 100 ù) -10 dBu to +16 dBu (for 250 mW, 8 O output)
  • Output Load Impedance: 8 O to 5 kO (drives low or high impedance headphones)
  • Output Signal (normal rated): +4 dBu into 100 O
  • Output Signal (maximum): 250 mW into 8 O, 20 Vp-p into 2 kO
  • THD+N: < 0.005% (0.0015% typical @ 1 kHz)
  • Frequency Response: 20 Hz to 40 kHz (+/- 0.25 dB)
  • Noise: < -100 dB below normal operating level
  • Total Dynamic Range: > 115 dB
  • Gain: Adjustable from -2 to 24 dB
  • CMRR: > 50 dB at 100 Hz
  • Crosstalk: < -65 dB (10 Hz to 20 kHz); < -80 dB @ 1 kHz
  • Power Requirement: GROUND-REFERENCED, 24 to 33 Vdc @ 175 mA
Stick-On Mounting Rack for 10 UnitsRadio Design Labs SR-10 Stick-On Mounting Rack for 10 Units

Radio Design Labs' STR-10 Racking System holds up to 10 STICK-ON units.  It holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or the top (depending on where the adjustment is located on ...

In Stock

Free Shipping Available

Our Price:$64.12List Price: $85.76You save 25%!

24 VDC 500mA Switching Power SupplyRadio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply

Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...

In Stock

Our Price:$22.93List Price: $30.67You save 25%!

Din Rail Adaptor for STICK-ON Radio Design Labs DRA-35S Din Rail Adaptor for STICK-ON

The DRA-35S is a 35 mm DIN rail mounting bracket that provides positive mounting for any RDL STICK-ON® module. The oblique mounting angle of the DRA-35S allows an installer to mount several STICK-ON modules to a single DIN rail. Access to ...

In Stock

Our Price:$19.02List Price: $22.44You save 15%!

Kit to Mount ST, TX Series Modules on FP PanelRadio Design Labs MB3-RDL Kit to Mount ST, TX Series Modules on FP Panel

TX or STICK-ON Module fastens to MB-3 which slides into FP-RRA/H track.

In Stock

Our Price:$5.01List Price: $6.70You save 25%!

Mounting Kit for STICK-ON, TX, or Rack-Up moduleRadio Design Labs MB1-RDL Mounting Kit for STICK-ON, TX, or Rack-Up module

Two mounting brackets mounts a STICK-ON, TX, or Rack-Up module to a flat surface.

In Stock

Our Price:$3.39List Price: $4.00You save 15%!

Rackmount Kit for 10 Stick-On UnitsRadio Design Labs STR-19B Rackmount Kit for 10 Stick-On Units

Radio Design Labs' STR-19B Racking System holds up to 10 STICK-ON unitss in a 19 inch rack and only occupies two rack spaces. The STR-19B holds STICK-ONs at an angle allowing for control adjustment from either the edge of a STICK-ON, or ...

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

Free Shipping Available

Our Price:$159.34List Price: $213.14You save 25%!

Rackmount System for 12 Stick-On UnitsRadio Design Labs STR-19A Rackmount System for 12 Stick-On Units

Radio Design Labs' STR-19A Racking System holds up to 12 STICK-ONs in a 19" rack and only occupies two rack spaces.

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

Free Shipping Available

Our Price:$134.02List Price: $179.28You save 25%!

Single RACK-UP Mounting Bay Utility ChassisRadio Design Labs UC-1 Single RACK-UP Mounting Bay Utility Chassis

Radio Design Labs' UC-1 is an ULTRASTYLE design tabletop chassis for mounting RDL modules and accessories. The front panel features a single RACK-UP mounting bay. The rear panel has an identical mounting bay and is supplied with matching ...

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

Our Price:$84.01List Price: $112.37You save 25%!

Mounting Frame for Stick/TXRadio Design Labs SR-4 Mounting Frame for Stick/TX

Radio Design Labs' SR-4 is a universal module chassis that can mount to a backboard, wall or nearly any other support. It provides mounting for 4 STICK-ON power amplifiers or 7 standard STICK-ON modules. TX ™ modules may also be mounted. ...

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

Our Price:$83.21List Price: $111.30You save 25%!

STICK-ON Series 19"W Mounting Rack for up to12 ModulesRadio Design Labs SR-12A STICK-ON Series 19"W Mounting Rack for up to12 Modules

Radio Design Labs' SR-12A chassis can be mounted in a rack or on a backboard to provide mounting of 12 STICK-ONs.

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

Our Price:$64.12List Price: $85.76You save 25%!

Single Stereo Headphone JackRadio Design Labs ACB1 Single Stereo Headphone Jack

Features all metal construction with single stereo headphone jack, ready for wiring through the nylon bushing opening.

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

Our Price:$29.39List Price: $39.31You save 25%!

Mounting Strip for STICK-ON UnitsRadio Design Labs Smk 12 Mounting Strip for STICK-ON Units

The SMK-12 allows removable surface (up to 6 units) or edge (typically 12, max. 16) mounting of STICK-ON units. They can be fastened to its surface using screws or adhesive foam pads.

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

Our Price:$27.45List Price: $36.72You save 25%!

Detachable Terminal BlockRadio Design Labs Dtb Rdl Detachable Terminal Block

Use DTB's to quickly detach and reattach wiring harness to STICK-ON units.

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

Our Price:$6.77List Price: $8.00You save 15%!

Click to download

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