Hello everyone
I got this old iphone/ipod docking station that I never use anymore. I want to modify it into a bluetooth speaker, but my knowledge on the subject is very limited so I decided to seek some help 🙂
I got this old iphone/ipod docking station that I never use anymore. I want to modify it into a bluetooth speaker, but my knowledge on the subject is very limited so I decided to seek some help 🙂
- info on the back has it rated for a 100W total
- 2 smaller speakers and one big one
- it hums when its idle (hate it) and the radiator on the back gets pretty hot
- wooden construction
- I want it to be ON 24/7, always ready to be connected to
- as long as there is no humming when idle - cheaper = better. The station itself cost 20$ and I'm not very picky when it comes to sound 🙂
I recently bought this one
GHXAMP TPA3116 2.1 Subwoofer Bluetooth Amplifier Digital Audio Board 50W*2+100W Bass AUX For 2.1 Bluetooth 5.0 Speaker DIY NEW-in Amplifier from Consumer Electronics on Aliexpress.com | Alibaba Group
Basically the same board but "Bluetooth 5.0" updated.
However, other than when pairing it said "M200 BT5.0", there is no way to verify it's actually Bluetooth 5.0. The BT chip is JL with a random number, I would be surprised it's just the device name is 5.0.
When connected, it seems only support SBC codec which is the very basic quality. I believe it's the same for some unknown BT 4.2 chip.
So, if you're picky about Bluetooth audio, you might want to go for separate Bluetooth board that supports aptX (Android) or AAC (iPhone/new Android) if those exist.
I will probably go for that next but I don't know how to integrate the Bluetooth board to the amp board.
Most of my other Bluetooth speakers and headphone amp support aptX.
I'm using the amp with 8ohm bookshelf speakers and a 8ohm passive subwoofer as my computer speakers, so probably should work for you too.
It's working great, really like the controls in front, compared to the my old TPA3116 which has only 3 knobs.
Right now I'm using a 24V MeanWell power supply but I also used it with 19V laptop adapter before that.
Going to use the computer's power supply with a 12V to 24V booster (waiting for some PCIE power cables) so it will be switched on and off with my computer.
GHXAMP TPA3116 2.1 Subwoofer Bluetooth Amplifier Digital Audio Board 50W*2+100W Bass AUX For 2.1 Bluetooth 5.0 Speaker DIY NEW-in Amplifier from Consumer Electronics on Aliexpress.com | Alibaba Group
Basically the same board but "Bluetooth 5.0" updated.
However, other than when pairing it said "M200 BT5.0", there is no way to verify it's actually Bluetooth 5.0. The BT chip is JL with a random number, I would be surprised it's just the device name is 5.0.
When connected, it seems only support SBC codec which is the very basic quality. I believe it's the same for some unknown BT 4.2 chip.
So, if you're picky about Bluetooth audio, you might want to go for separate Bluetooth board that supports aptX (Android) or AAC (iPhone/new Android) if those exist.
I will probably go for that next but I don't know how to integrate the Bluetooth board to the amp board.
Most of my other Bluetooth speakers and headphone amp support aptX.
I'm using the amp with 8ohm bookshelf speakers and a 8ohm passive subwoofer as my computer speakers, so probably should work for you too.
It's working great, really like the controls in front, compared to the my old TPA3116 which has only 3 knobs.
Right now I'm using a 24V MeanWell power supply but I also used it with 19V laptop adapter before that.
Going to use the computer's power supply with a 12V to 24V booster (waiting for some PCIE power cables) so it will be switched on and off with my computer.
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Using that board is there any noise coming from the speakers when there is no active audio input? Any humming or other type of noise when speakers are idle?
@mcdull; Thx 4 the BT info. You can run it from 12V directly unless you want/need to get the last few dB's out of it.
The subwoofer outputs on these boards are marked 3-4 Ohm but are 2 Ohm stable. TPA3116 in PBTL is ok down to 1.6 Ohm.
The subwoofer outputs on these boards are marked 3-4 Ohm but are 2 Ohm stable. TPA3116 in PBTL is ok down to 1.6 Ohm.
He used almost the same board quote earlier, but without integrated Bluetooth module, for the DIY bluetooth speaker. I'm planning to use the same board next with CSR8675 and TPA3105A.
However, I noticed that in the first board review video, the big capacitor was there:
YouTube
But in the next video, seems it was replaced with a small one?
YouTube
What's the reason for that? because he's using lower voltage?
LG speaker with aptx-HD doesnt cost a lot. PX7 or something. Could probably be modded to sound great
Cheers!
Cheers!
I tried running 2 PCI-E 8-pin cables (can pull 12V/300W) from my PC's ATX power supply to the amplifier.
Then I can hear noise load and clear from the speakers even on Bluetooth.
Before that I was using a dedicated Mean Well PS or laptop adapter and no noise at all.
I guess it's the ground noise as the power supply is sharing with other PC components? Any way to eliminate the noise?
What I'm trying to do is to power off the amplifier when I shutdown or put my computer to sleep.
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