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Description
UBBU 4 - 4 Channel Unbalanced to Balanced & Balanced to Unbalanced ConverterSignature Series Balance Converters The Signature UBBU4 is a broadcast specification twin stereo unbalanced to balanced, and balanced to unbalanced analogue audio interface that is equally suitable for professional & home studio use. It is most commonly used for interconnecting domestic type recording playback devices to broadcast professional equipment. Its primary job is to interface domestic type audio outputs (unbalanced) to the balanced audio
Signature Series/Balance ConvertersThe Signature UBBU4 is a broadcast specification twin stereo unbalanced to balanced, and balanced to unbalanced analogue audio interface that is equally suitable for professional & home studio use.
It is most commonly used for interconnecting domestic type recording/ playback devices to broadcast/ professional equipment.
Its primary job is to interface domestic type audio outputs (unbalanced) to the balanced audio inputs on broadcast and professional audio equipment while simultaneously connecting balanced outputs from professional equipment to the unbalanced inputs on domestic products.
As well as providing the balancing interface the UBBU4 also provides variable gain/ loss to allow the two connected pieces of equipment to match audio levels.
All the stereo circuits can both work as dual mono. All the inputs are electronically isolated with RF filters to prevent extraneous signals, and fed via multi-turn preset gain controls on the rear panel to their outputs.
The rear panel gain controls are multi-turn presets to allow accurate gain setting and are also recessed to prevent accidental movement.
Power is provided by an internal switch mode power supply, with a wide input range. There is also an input for external 12v DC power. The 12v DC input can be connected to the optional Signature PS1external DC Master Power Station, for situations where a redundant power supply is desirable.
A bright front panel LED indicates that the unit is operational.
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.2 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 4
Where’s the owners manual?
I really like this. The only drawback is that there is no owners manual!
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Reviewed in the United States on April 4, 2026
★★★★★ 1
poor purchase
It only lasted 2 mo before it quit working
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Clean teeth, smart features, and convenient to use!
I’ve gone through a few electric toothbrushes over the years, and this one stands out mostly because of how practical it is day to day. The cleaning power is solid, my teeth feel noticeably smoother after each use, especially along the gumline. The different modes are useful, I mostly stick to the standard clean mode, but the sensitive option is great when my gums feel a little irritated.
The built in UV sanitizing and drying feature is something I didn’t think I needed, but now I appreciate it. It’s nice knowing the brush head isn’t just sitting there wet between uses. The included rinse cup and storage setup make everything feel more organized on the counter, which is a small but real upgrade.
Battery life has been reliable so far, and the wireless charging base keeps things simple. It also comes with multiple brush heads, which adds value, especially if you plan to stick with it long term.
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Reviewed in the United States on April 19, 2026
★★★★★ 4
Cleans your teeth!
This is my first experience with an electric toothbrush. I was a little confused with how to charge this but you need to take out the cup and plug it into that spot. So it’s nice that it comes with a cup but it does go in the charging spot. The UV disinfectant and dryer is very cool indeed. I can’t tell what the difference is in all the different settings. The toothbrush does a really good job of cleaning and you can feel your teeth clean even for a while after you brush. You should put it in your mouth first before you turn it on or else you’ll spray toothpaste all over the place. Overall this was a good foray into electronic toothbrushing for me. I don’t think it’s the top quality as some of the name brands but it works and gets the job done. I love that it comes with replacement heads.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
JTF Sonic Electric Toothbrush with UV Sanitizing & Drying: 5 Modes for Effective
Super cute, comes with lots of replacement heads. The sanitizing slot is really cool and makes everything feel extra clean.
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Reviewed in the United States on April 25, 2026