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Radio Design Labs ST-UBA2
Unbalanced to Balanced Amplifier

OUR PART #  STUBA2

Our Price: $157.62
List Price: $210.84
You save 25%! (Low Price Guarantee)
In Stock

Recommended Accessories
Radio Design Labs' ST-UBA2 is used in any application requiring conversion from unbalanced consumer format signals to professional +4 dBu. It may be used to balance audio from CD players, cassette decks, computer sound cards, televisions, and a wide variety of other unbalanced sources. The mono sum output may be used to drive patch-bay jacks, monitors or subwoofer amplifiers.

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.

Separate Dual-LED VU metering is provided for the left and right outputs. A green LED illuminates at 15 dB below +4 dBu. The intensity of the green LED progresses from minimum at -11 dBu to full intensity at +4 dBu. The adjacent red LED illuminates at +4 dBu.

The audio clarity, low-noise, low-distortion 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.

Features:

  • Convert Stereo IHF Levels to Stereo PRO
  • Additional Summed MONO OUT
  • Independently Adjustable Gain
  • Ground-Referenced Conversion Module
  • Dual-LED VU Metering for Each Channel Included
  • Unparalleled Audio Performance

Typical Performance:

  • Inputs (2): Unbalanced line-level
  • Input Impedance: 10 kohms
  • Input Signal Range: -20 dBV to -10 dBV
  • Outputs (3): +4 dBu balanced (left, right, mono sum)
  • Gain: 2 dB to 22 dB (adjustable)
  • THD+N: < 0.02% (20 Hz to 20 kHz)
  • Frequency Response: 20 Hz to 20 kHz (+/- 0.2 dB)
  • Noise: < -85 dB (referred to +4 dBu)
  • Indicators(4): 1 green LED per channel indicating 15 dB range below +4 dBu output level output level
  • IMD: < 0.004%
  • Crosstalk: < -75 dB @ 1 kHz;  < -60 dB @ 10 kHz
  • Headroom: > 18 dB above +4 dBu
  • Power Requirement: GROUND-REFERENCED, 24 to 33 Vdc @ 75 mA
Rackmount System for 12 Stick-On Units
Radio 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.
136.70 182.87 25
In Stock
Free Shipping Available
Stick-On Mounting Rack for 10 Units
Radio 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 ...
65.41 87.48 25
In Stock
Free Shipping Available
24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs' PS-24AS is a 24 VDC/500 mA switching power supply with a North American AC plug. Compatible with various RDL products.Radio Design Labs PS-24AS Specifications: Input: 100 to 240 VAC Output: 24 Vdc, 500 mA (UL, ...
23.40 31.28 25
In Stock
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 ...
19.40 22.89 15
In Stock
Mounting Kit for STICK-ON, TX, or Rack-Up module
Radio 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.
3.46 4.08 15
In Stock
Rackmount Kit for 10 Stick-On Units
Radio 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 ...
162.53 217.40 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Free Shipping Available
Mounting Frame for Stick/TX
Radio 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. ...
84.88 113.53 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
STICK-ON Series 19"W Mounting Rack for up to12 Modules
Radio 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.
65.41 87.48 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Bracket for up to 4 STICK-ON Modules
Radio Design Labs ST-PBR4 Mounting Bracket for up to 4 STICK-ON Modules
Radio Design Labs' ST-PBR4 is a mounting frame with slots for four STICK-ON modules.  The ST-PBR4 mounts on an FP-PSB1A power supply bracket or to any flat surface.  The ST-PBR4 design allows the installer to secure the modules ...
34.59 46.27 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
6 Stick-On DIN Rail Adapter Modules
Radio Design Labs DRA-35S-6 6 Stick-On DIN Rail Adapter Modules
Radio Design Labs' DRA-35S-6 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 ...
32.87 38.78 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Strip for STICK-ON Units
Radio 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.
28.01 37.45 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Bracket for STICK-ON Modules
Radio Design Labs ST-RRB1 Mounting Bracket for STICK-ON Modules
Radio Design Labs' ST-RRB1 mounting kit contains a bracket to attach a STICK-ON module to a rear rack rail or to any flat surface. The module slides into the holder and snaps into position. The module may easily be removed.
22.67 26.74 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Detachable Terminal Block
Radio Design Labs Dtb Rdl Detachable Terminal Block
Use DTB's to quickly detach and reattach wiring harness to STICK-ON units.
6.92 8.16 15
Usually ships in 7-14 business days.
Need it sooner? Call us!

Click to download

Radio Design Labs ST-UBA2
Unbalanced to Balanced Amplifier

OUR PART #  STUBA2

Product Information:

Radio Design Labs' ST-UBA2 is used in any application requiring conversion from unbalanced consumer format signals to professional +4 dBu. It may be used to balance audio from CD players, cassette decks, computer sound cards, televisions, and a wide variety of other unbalanced sources. The mono sum output may be used to drive patch-bay jacks, monitors or subwoofer amplifiers.

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.

Separate Dual-LED VU metering is provided for the left and right outputs. A green LED illuminates at 15 dB below +4 dBu. The intensity of the green LED progresses from minimum at -11 dBu to full intensity at +4 dBu. The adjacent red LED illuminates at +4 dBu.

The audio clarity, low-noise, low-distortion 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.

Features:

  • Convert Stereo IHF Levels to Stereo PRO
  • Additional Summed MONO OUT
  • Independently Adjustable Gain
  • Ground-Referenced Conversion Module
  • Dual-LED VU Metering for Each Channel Included
  • Unparalleled Audio Performance

Typical Performance:

  • Inputs (2): Unbalanced line-level
  • Input Impedance: 10 kohms
  • Input Signal Range: -20 dBV to -10 dBV
  • Outputs (3): +4 dBu balanced (left, right, mono sum)
  • Gain: 2 dB to 22 dB (adjustable)
  • THD+N: < 0.02% (20 Hz to 20 kHz)
  • Frequency Response: 20 Hz to 20 kHz (+/- 0.2 dB)
  • Noise: < -85 dB (referred to +4 dBu)
  • Indicators(4): 1 green LED per channel indicating 15 dB range below +4 dBu output level output level
  • IMD: < 0.004%
  • Crosstalk: < -75 dB @ 1 kHz;  < -60 dB @ 10 kHz
  • Headroom: > 18 dB above +4 dBu
  • Power Requirement: GROUND-REFERENCED, 24 to 33 Vdc @ 75 mA
Rackmount System for 12 Stick-On Units
Radio 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.
136.70 182.87 25
In Stock
Free Shipping Available
Stick-On Mounting Rack for 10 Units
Radio 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 ...
65.41 87.48 25
In Stock
Free Shipping Available
24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs PS-24AS 24 VDC 500mA Switching Power Supply, North American Model
Radio Design Labs' PS-24AS is a 24 VDC/500 mA switching power supply with a North American AC plug. Compatible with various RDL products.Radio Design Labs PS-24AS Specifications: Input: 100 to 240 VAC Output: 24 Vdc, 500 mA (UL, ...
23.40 31.28 25
In Stock
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 ...
19.40 22.89 15
In Stock
Mounting Kit for STICK-ON, TX, or Rack-Up module
Radio 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.
3.46 4.08 15
In Stock
Rackmount Kit for 10 Stick-On Units
Radio 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 ...
162.53 217.40 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Free Shipping Available
Mounting Frame for Stick/TX
Radio 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. ...
84.88 113.53 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
STICK-ON Series 19"W Mounting Rack for up to12 Modules
Radio 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.
65.41 87.48 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Bracket for up to 4 STICK-ON Modules
Radio Design Labs ST-PBR4 Mounting Bracket for up to 4 STICK-ON Modules
Radio Design Labs' ST-PBR4 is a mounting frame with slots for four STICK-ON modules.  The ST-PBR4 mounts on an FP-PSB1A power supply bracket or to any flat surface.  The ST-PBR4 design allows the installer to secure the modules ...
34.59 46.27 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
6 Stick-On DIN Rail Adapter Modules
Radio Design Labs DRA-35S-6 6 Stick-On DIN Rail Adapter Modules
Radio Design Labs' DRA-35S-6 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 ...
32.87 38.78 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Strip for STICK-ON Units
Radio 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.
28.01 37.45 25
Usually ships in 7-14 business days.
Need it sooner? Call us!
Mounting Bracket for STICK-ON Modules
Radio Design Labs ST-RRB1 Mounting Bracket for STICK-ON Modules
Radio Design Labs' ST-RRB1 mounting kit contains a bracket to attach a STICK-ON module to a rear rack rail or to any flat surface. The module slides into the holder and snaps into position. The module may easily be removed.
22.67 26.74 15
Usually ships in 7-14 business days.
Need it sooner? Call us!
Detachable Terminal Block
Radio Design Labs Dtb Rdl Detachable Terminal Block
Use DTB's to quickly detach and reattach wiring harness to STICK-ON units.
6.92 8.16 15
Usually ships in 7-14 business days.
Need it sooner? Call us!

Click to download

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