Powersupply: bluetooth speaker

[Hayden]

I need to create a powersupply (battery) with charging circuit for a compact bluetooth speaker. The major issue is to get decent power out of these little amplifier modules as you need anywhere between like 24 to 50v depending on the amp module as the higher the voltage the better they perform.
any suggestions? I can maybe run 10 small liPo batteries with a BMS board but that's a fair chunk of space it takes up and it's like $200 worth of batteries.... and can I trust those Chinese BMS boards😱
Or stupid question: maybe I can run 4 cells and using a boost converter to step up to a higher voltage? I know the current draw will go up tho but it's just a silly thought😕
I think I'm exceeding the limits of physics here hahaha

what have you guys done? Anyone have any ideas???
Cheers again 🙂

 

[PRR]

...compact bluetooth speaker. .....you need anywhere between like 24 to 50v depending on the amp module as the higher the voltage the better they perform....

Really? 50V is not about the BluTooth. Do you mean "Outdoor Party Speaker"? Even then, 2*100W of power is not "compact", unless you are just toasting voicecoils instead of making music.

 

[Hayden]

I know probably a cross between a bluetooth speaker and a compact portable party one lol but a lot of these amps require at least 20 odd volts to even basically turn on and about 40-50v to get full potential yeh sure it's at "least" 1% distortion but a bluetooth speaker is not going to be high fidelity or a studio monitor. Some speakers that can be used are hundreds of watts rms at 8ohm and I just need the head room as most of the suitable amps like to be run 3ohm.... (just as an example) lets say I get a 500w at 3ohm amp and I wack an 8ohm speaker on it the wattage could drop down to lets say 150w and that's about where I need to be at...... I'm obsessed with things being an over kill for some reason haha😱😱

Just remember it's not going to be a true 500w at .005THD haha I'm just experimenting and learning
cheers man🙂🙂