Late but for a 15w amplifier you need a 12V 1.5A or 12V 2A power supply But! Considering that this amplifier has 2 channels 15W each you need a 12v 3A power supply

what bluetooth module did you use in this mini amp? and how did you power up the bluetooth module using this amp?

Sure

You can buy passive tone board.. No power supply needed.. You can buy that in any online store..

try 500mA

2.5A according to my math

It must be the bluetooth module itself

9-12v/1-3A Is reccomended

also the power source please. Thanks!

@@bryanleiporsado6845 This maybe a little late to your question but I am using this board (amplifier) with my bookshelf speakers 4 ohms 20 Watts (Sharp) and with a regulated power supply rated at 13.8V (but actually measured at 12V) and 3 amperes. My audio source is the headphone output jack of my PC.

@@herminigildojakosalem8664 Hey thanks! Been using this for a while now, using my Kenwood LS-VH7 rated 6ohm 30w each. My power source is a 12v 2a adaptor, my only problem now is that I get this crackling noise and the hum gets louder once I touch the volume knob itself, and also getting a lot louder with the volume going up. I don't really know what's the reason behind all that but when I play songs loud I couldn't notice the hum anymore because it's covered by the song so yep. Thank you for the reply. 👍

@@bryanleiporsado6845 The hum you get when you touch the volume control knob could be household AC hum. I am guessing your Vol Con aluminum shaft is bare (no plastic knob attached). As to your other hum, I'd hazard a guess: it might be due to poor (inadequate) ground connection from your audio source (audio jack contacts contaminated or dirty. And the crackling noise which I guess are sudden and intermittent, I hate to alarm you but that is exactly what I got from another amplifier board (TDA7377 40+40 W) i bought also from China just before it quit altogether after just three days of trouble-free use. Good luck. Enjoy the hobby.

@@bryanleiporsado6845 Also, verify that your power supply can actually deliver 2 A. If you have an idle car battery that is still good, try powering your amplifier with it and see if the hum goes away. FWIW, so far I have no complaints with my 7297 Amplifier board. No hum, no cracling sound. Knock on wood. He-he-he.

In the meantime I purchased this amp. It does exactly what my 2 kg big amp did but using less space and power. It also sounds at the same level (power and quality) so I have nothing to complain about.

no this one no.

Thanks

Ashish Chaurasiya.. yes for such a little amp I think that has enough power and enough of bass.. I seen a lot of worst sounding amps.. this is quite impresive..

ALS-TechReview thak you. i want to make a boom box for outdoor parties & picnics using a 12 volt 7.5 ah battery. can you please suggest me amp this one or any other. Thanks.

Ashish Chaurasiya hmm.. for boom box for picnic I think you need something more powerfull than this.. mybe a nobsound or breeze audio tpa3116 amp..

ALS-TechReview thanks for your precious reply but one of your videos i saw a comparison between tda7297 and tpa 3116. & you said tda7297 is better than tpa 3116.

Ashish Chaurasiya.. yes in this case it is.. but the more powerfull tpa are expensive.. in you buy a good tpa than is good to.. check out through my channel, you mybe find something more interesting.. there are almost everywere links to se the prices.. but deffinitly is this tda the cheapest one and it works fine..

Very high.

TDA7297 if ic is original St

@@dibyamartandasamanta583 OK thanks yach

Tda7297 is better because pam8610 is noisy

Lela Mario its a AB amplifier

sHikERe666 *** thank you

Lela Mario you have this amplifier?

sHikERe666 *** yes and it works and so loud:)

Ab 2 channel

@KentoDC21 im thinking to buy one. I got a pair of aiwa two way bass reflex speakers from old stereo system.. I guess they're 40w 6 ohm each.. and I have 12v 4a power supply.. what's your suggest about this rig?

No. Only use 9v 3 amp tranceformer. 9 v to Dc conversion 13v dc . It's fine