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Bluetooth Receiver with built in interface for dumb bluetooth devices

Fozzie Bear

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Feb 12, 2025
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Hi I joined this forum to ascertain if anyone is aware of a bluetooth receiver that will connect a dumb bluetooth device to an amplifier.

Most bluetooth accessories such as speakers etc transmit a bluetooth network identifier. This is used to identify the correct device to connect to. Under most circumstances you need a device with an operating system such as a mobile phone, tablet or PC with software that can scan for and connect to the network identifier of bluetooth devices.

In my scenario I have a bluetooth boundary mic VEC CM-2000BT which is a dumb bluetooth device which merely transmits its ID. I also have a preamplifier which has bluetooth audio connection which also advertises its bluetooth ID. There is no way to connect the boundary mic to the preamplifier without some sort of intermediary device which has an interface to scan and connect to bluetooth devices.
There are hundreds if not thousands of bluetooth receivers and transmitter/receivers available, some with displays but none that I can find that imitate a phone or operating system to be able to connect to a bluetooth ID. I have even thought about using something like a raspberry pi pico device which can connect to the boundary mic but would not really know where to start.
Does anyone know of such a smart bluetooth receiver. It's likely to be a proprietary or niche product but there must be something out there somewhere.
Thanks in advance
Fozzie
 
As the VEC CM-2000BT is a mic, I wonder if can connect directly to an amp as a mic probably uses the HSP and the amp A2DP.
What you can try is connecting the mic to a mobile.
Now connect the mobile to the amp and use the amp as speakers.
 
As the VEC CM-2000BT is a mic, I wonder if can connect directly to an amp as a mic probably uses the HSP and the amp A2DP.
What you can try is connecting the mic to a mobile.
Now connect the mobile to the amp and use the amp as speakers.
Many thanks for the response @Vincent Kars that might work but is not a long term solution. We need the CM-2000BT as a boundary mic for meetings in our community hall and need it to connect to the existing audio visual setup as that has a hearing loop etc. It needs to be reasonably foolproof so that they mic (which is rechargeable) is just switched on and placed on the meeting table without having to connect to bluetooth each time. Most of the users are technophobes and would rather not use the mic if it means fiddling to set it up each time :facepalm:
Fozzie
 
but is not a long term solution.
Really?
It is possible to connect Bluetooth device without interfaces. I did so in the past. It was a matter of putting both in pairing mode and keep them close to each other.
If this fails with your mic and amp, you need a interface. Period.

https://fccid.io/2AV73CM-2000BT/User-Manual/User-Manual-5016675 says a PC, tablet or mobile.
So a PC/Tablet/Mobile connected to the amp permanently. Hopefully you have to pair the mic only once and the moment it is powered on, it will connect to the PC/Tablet/Mobile without user interference.
 
Thanks again @Vincent Kars . I will try your suggestion about putting both devices in pairing mode and seeing if they will connect. Regarding using a phone or tablet no doubt this would work if I could use a phone with a headphone jack output. However although it might be ok for a one off his fevie needs to be on permanently and so would need to be on charge all the time and secured so somone cannot walk away with sghich a valuable device. I am looking for a device that is made specifically for the task. That said I am researching if something like a Raspberry Pi maybe even a Pico Pi might work as a receiver if I can find someone to write the code in python.
 
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