TPA3255 amp cutting out

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#22
Well, turned Amp on today and now seems to be white noise that wasnt there before coming from it when volumes low. its nioticeable. went through checked all connections etc alls good.swapped out lets etc. My gain is set i guess to 26 all the way counterclockwise. Running it in PBTL with 48v dc supply. It was dead silent. Not sure what deal is now. These amps are frustrating at times.
 
#24
High Gaspar,
I am using the non bluetooth version of the board too. Bought a few weeks ago. I also noted the white noise.
Do you think the white noise can be removed by removing C1?
I am powering the amplifier with Meanwell 36 V ac dc adapter .
 
#26
lokonsky said:
Sorry to hear that, the article i send you is directly from Wuzhi it shelf. I use 2 variant of tpa3255 amp (aiyima A07 and Fosi M03) with caps mod and they works perfectly fine for my HT till now...just buy this wuzhi zk-3002 for my tactile transducer because they have active fan and can works up to 48v (aiyima and fosi can only up to 36v), so i think its not the TPA3255 fault afterall, but the board maker (wuzhi)....

edit: are you use this amp in stereo or mono mode? i dont trust PBTL mode in this board anyway...its just to damn simple, maybe better to pick Fosi M03 if you plan to play in PBTL mode (I use it for center channel)
Click to expand...
Hi Lokonsky,

Can you let me know what are the mods you did in Aiyima A07 to get over the cuttting out issue. Because my one A07 max Amp started getting cutting out issue. Im running 2 Aiyima A07 max in mono to drive my tower speaker pair. Thanks in Advance
 
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