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Yes RCA input suck, MA12070 chips sounds best with differential input. And it's an very nice chip if you run with an cheap DAC like SMSL m300 se.

Just avoid MA12070 amps with RCA input and problems solved in the hearable frequences.

Yes I follow that thread... I run my amps with full volume and software control. Also have some of these boards which I changed the ferrite to BLE32PN300SN1L and it sounds better with them. https://www.aliexpress.com/item/1005008089470217.html? Nice amp when you run it balanced in.

I have not opened up just going for what people say. Post #406 https://www.audiosciencereview.com/forum/index.php?threads/topping-pa3s-review-desktop-amplifier.27079/page-21#post-1358357

It' hard to know but no caps or coils.

You are on wrong amp. It's Topping Pa3s as I wrote. https://www.audiosciencereview.com/forum/index.php?threads/topping-pa3s-review-desktop-amplifier.27079/

If I lay my phone, with wifi on, at my filterless Topping Pa3s I hear no difference and it proberly measure the same so don't blame all MA12070 amps. It sounds very good and is very quiet.

Differential input is always best with this MA12070 chip. RCA is way to noisy with EMI pick up.

MA12070 sounds best with balanced input as Topping Pa3s have, also an filterless amp. But long speaker cable would pick up noise.

Qf course it's EQ in room, how you choose what is right for ONE speaker. EQ that ONE, it's better to lower than pusch up and forget those room moodes spikes you see. You don't hear them. Try to meet your speakers in the room.

I don't know if missed something but I use ONE speaker as reference, not copy Left EQ to right speaker. Use the ONE speaker and Export-export measurement as txt. Import it as house curve in EQ . Then pusch calulate taget level from response. Then try to meet that response to your other speaker...

"I found Ella on a Sunday doom-scroll, being a little curious about all the people who had used an improvised piano clip I had posted a few weeks earlier in their own content. Amidst all the noise I found Ella's video and her mesmerising voice over my improvisation just floored me. After I had...

Sorry amirm but David Gilmour suck on that track and his daugheter is just mediocre but nice production. :)

Good deal on Klipsch RP 8000 II €980 for a pair. https://hidden-audio.de/product/klipsch-rp-8000f-ii-stueckpreis-standlautsprecher-1015345/