So... how does it sound!
Very nice card in my eyes! and full of possibilities...Bravo!
Just expect 5 MA12070 chips. Next weekend i will test them.
You sure know but please work ESD safe. I had a defective device from a member and experienced a defective chip myself after working non ESD safe (“just once won’t harm”, “hurry” etc.).
Both had an internal short, a crack in the IC and they did not have DC output thankfully.
Both had an internal short, a crack in the IC and they did not have DC output thankfully.
Your card looks great....The MA1270 chip is the best...Class D, reliable and faithful, unlike my 125AX ice power
Courage..... and group purchase.... Maybe....😍😍👍
Courage..... and group purchase.... Maybe....😍😍👍
Well, reliable is a bit of an assumption as it is still too young to judge it on that aspect. I have seen 2 defective ones till now that died all of a sudden. I am careful with MA12070 and no load, I think it does not like it to be powered on with no load.
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my sabaA20 is on 24/7.... And it's fine.. just like my tpa 3116... it's chips are reliable...
No quiescent current .... with knob .... which ages badly ....
I have a class AB, it's hot. But it's good, The future is in class D 👍
No quiescent current .... with knob .... which ages badly ....
I have a class AB, it's hot. But it's good, The future is in class D 👍
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Yes that is right and I like Infineon class D a lot too but one has to see the broader picture when it is about reliability of chips (to avoid the techs syndrome if you know that). There are let's say 1 million Renault Clio sold and failure rate is less than 1% but yours and that of your neighbors break down every month. What is your and your neighbors opinion on the Clio?
At last, after three faulty ma12070, this one is functioning.
The chip is very difficult to solder. Listen impression will follow soon.
The chip is very difficult to solder. Listen impression will follow soon.
Everything about this PCB looks lean and mean, even the opamps 🙂 I think it's enough to make several TPA32xx boards blush in terms of complexity and hopefully, sound quality too.
I have problems with blowing up channels. Had five chips and using now the last one. The sound is nothing else as my chinees ma12070 board. Besides it is very difficult to solder the chip. The amp plays a view days and the next time one channel is blow up.
Until yet my board is not sounding better. And leaves me with my first impression of a some what weak amplifier for my dynaudio speakers.
Until yet my board is not sounding better. And leaves me with my first impression of a some what weak amplifier for my dynaudio speakers.
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You might be getting oscillations and/or static issues due to fairly long-ish tracks associated with that MA12070 plug-in adaptor boar.