Overview
The 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.
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
Specifications
- Inputs (2):Unbalanced line-level
- Input Impedance:10 kΩ
- Output Impedance:150 Ω
- 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
- Ambient Operating Environment:0° C to 55° C
- Power Requirement:GROUND-REFERENCED, 24 Vdc @ 75 mA
- Package Type:Cardboard Box
- Package Dimensions:2 x 2 x 4 in.
- Shipping Weight:0.205 lbs.
RDL Three-Year Limited Warranty
Installation of these products by the Purchaser shall constitute Purchaser’s acknowledgement and acceptance of the terms and
conditions for sale and of this warranty, and shall constitute the Purchaser’s determination of the suitability of this product for the
Purchaser’s intended application. Radio Design Labs, Inc., also referred to as RDL®, warrants to the Purchaser that products
manufactured by RDL are free from defects in material and workmanship. This warranty applies to the period of three years from the date
of shipment, except for component parts or products purchased from other sources and supplied by RDL. Such component parts or
products bear only the warranty of the manufacturer thereof in effect at the time of shipment to the Purchaser. RDL will, without charge,
and after written notice has been received and acknowledged by RDL, repair an RDL product if proved to be defective according to the
usage of the trade, when such equipment is received by RDL at the location it designates with shipment costs prepaid by the Purchaser.
RDL shall not be liable for any expense whether for repairs, replacements, material, service, or otherwise, incurred by the Purchaser or
modifications made by the Purchaser to the product. No equipment shall be deemed defective if it shall fail to operate in a normal or
proper manner due to exposure to excessive moisture in the atmosphere, excessive temperature extremes, improper environmental
cleanliness, or any other environment not consistent with the principles of good engineering practice. In no event shall RDL have any
liability for consequential damage or expense directly or indirectly arising from the use of the products, or any inability to use it either
separately or in combination with other equipment or materials, or from any other cause, whether used in accordance with instructions or
not. This warranty is void if equipment is altered in any way by other than RDL. RDL products are NOT intended for use in life support
appliances, devices, or systems. Use of RDL products in such applications is done solely at the liability of the reseller/installer and/or end
user. RDL reserves the right to change design parameters and specifications at any time without notice. The performance measurements
reflect the products at the time of printing. This warranty is in lieu of all others, either expressed or implied. No representative is authorized
to assume for RDL any other liability in connection with RDL products.
