BG141341217
BG141341217 After one month of testing and listening I decided to replacevthe toroud transformer with a 30-0-30v and 300VA. For the preamp I use 19-0-19v toroid transformer. These realy make the difference. The power is realy high and the bass is deeper. I think is simething like 120 watts in 8 ohm each channel. Realy nice sound, better then the Onsemi board.
BG141341217 i tested with 24-0-24v, 300VA and it worked fine. Then I changed to 30-0-30v, 200VA and it sounds louder and bass is deeper. It seems that voltage is important when it comes to deep bass, not the VA . With a ne5532 tone board, it always sounds transparent, no metter what voltage.
2022-01-13 10:51:51 Helpful (2)
BG141341217 By the way... I noticed the usb module does not work atall. First i thought it was turned off by remote control, but it is completly dead. I looked inside and saw a long scratch across the main board. as i am an electronics entusiast i welded some wires throug the separated points. Now the module is powered but still no sound out of it. I do not return the product ar this price point, but i can tell this is poor quality and the q.c. is practically inexistent.
BG141341217 maybe You have to change the 4 capacitors in the filtering area. I sugest some bigger and better ones
The seller Yeah,built-in speaker protection.
2021-12-24 08:15:17 Helpful (0)Q: Essa placa amplificadora funciona em 127 ou 220v e em que frequencia?
Asked by BG563754834 on 2020-08-05 04:46:04
BG141341217 It does not work in neither 127 or 220v. You need a dual toroidal transformer which provides any of the following voltages: 24-0-24, 28-0-28, 30-0-30, 32-0-32.
2021-12-19 04:46:56 Helpful (0)We sincerely invite you to subscribe to the Invite Answer email!
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