DTA Controller - US 4+

When it works it is good. Phone shows app connected and blue indicator light is lit on the unit but app will not change volume. Have to disconnect and reconnect multiple times to get it to work. If I switch between Bluetooth and radio I have to disconnect and reconnect to get it to work. The app will say that it is not connected when the phone says it is. Other than that I love the radio. A remote control would have been a better idea than Bluetooth. Or maybe both.

The app is not as bad as others have reported, at least in my experience on iOS 10.3.3. As noted on page 5 of the manual, you should enable regular standby mode rather than “ECO” standby if you want to allow Bluetooth connections. But, in addition to that, there is another setting described at the bottom of page 19 — “auto power standby.” By default, this feature is enabled, and it will save electricity. But if you want the unit to respond to your Bluetooth device when it is not active, you should turn off the auto power standby feature.

If you have the two settings made described above, then when you start the app, it may be able to connect to your Yamaha system right away. If not, perform the following steps:
Open Settings
From the main Settings page, select Bluetooth (and make sure that it is enabled)
In the section My Devices, you should see the TSX-B235 (assuming that you’ve previously paired with it).
Tap the device name (not the “i” in the blue circle), which will restart the Bluetooth connection
Return to the DTA Controller app, which should not be able to talk to your Yamaha sound system
Note: there are other potential complicating factors, such as having another Bluetooth device make a connection while your iOS device was out of range.

Whatever problems earlier reviewers had, they are not apparent to me. Clock and alarm settings etc using this app are easy and straightforward. Perhaps others were expecting more handholding help menus or expansive features ? It’s just a small basic tabletop audio player folks. It does everything Yamaha promised, nothing more, nothing less.