This is a placeholder topic for “Stereo Bluetooth Amplifier Board” comments.
This is a small size and cost-effective Bluetooth 5.0 digital amplifier module with a volume adjustment function. It can connect to two speakers and match a wide…
Read moreCan you bridge the output to create Mono?
If you want a mono amplifier you would bridge the input, not the output. But if you mean can you bridge the output to drive a single speaker from both channels, it appears not. Detailed information about the device is hard to find, but there is at least one reference to the chip as a Class D amplifier, which means that the outputs cannot be bridged without damaging the device. To get 40W from a chip that size it is very likely a Class D. You may be able to get detailed information if you post your query directly with DFRobot.
Dual Channel Stereo Bluetooth Amplifier Board - DFRobot
Of course, you can always feed a mono signal to one input and connect your speaker to the corresponding output.
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Hi James
Short answer. It would be a Class D amplifier so NO.
As Jefff stated if you want Mono you connect L and R at the input. I have not bothered to look but I believe as this unit is a complete Bluetooth device the Audio inputs would not be readily accessible so I am afraid you will be stuck with stereo.
Cheers Bob
I just had a look and there is no schematic on the Core site. There may be one available if you want to dig deep enough.
Hi @James135701, Welcome to the Forums!!!
Both @Robert93820 and @Jeff105671 are on the money with this one.
The best way to get a mono output would be to set the source device to send a mono signal.
There are ways to do this on most operating systems out there.
I know on MacOS and iOS there an option in the Accessibility settings and I’m sure there’d be a way on Android, Windows and Linux as well.
