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Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
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Unbalanced line-level
10 kOhms
150 Ohms
-20 dBV to -10 dBV
+4 dBu balanced (left, right, mono sum)
2 dB to 22 dB (adjustable)
< 0.02% (20 Hz to 20 kHz)
20 Hz to 20 kHz (+/- 0.2 dB)
< -85 dB (referred to +4 dBu)
1 green LED per channel indicating 15 dB range below +4 dBu output level output level
< 0.004%
Crosstalk< -75 dB at 1 kHz
< -60 dB at 10 kHz
> 18 dB above +4 dBu
0 to 55 deg. C (32 to 131 deg. F)
GROUND-REFERENCED, 24 Vdc at 75 mA
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.