Replacing opamps in Aiyima A70 and first look at what's inside
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- čas přidán 9. 09. 2024
- This just came in, courtesy of Aiyima.
You can get one here:
s.click.aliexp...
That's just a first look video, as it will have a week of burn in before critical listening session with stock opamps and then with some selection from my collection.
I am very curious about the sound quality as this is one of the new breed of TPA3255 based amps that uses PFFB (post filter feedback loop) that in measurements raises dynamic range and lowers thd and imd distortions. Cool, right?
But how does it sound? :)
Stay tuned for full review!
(I love XLRs, I love trigger input, I love sub out with cutoff freq pot!)
Recently I got into Aliexpress Affiliate program, meaning that I get small commision from the purchases made through my links. If you'd like to help me build the budget for more reviews (as commision is not paid, its a bonus back for Ali purchases) use the links I provide here.
And these are always best offer anyway, as I do pay for these with my own money so I always use best offer with best shipping from the shops I personally tested as safe and reliable (and thats not always the case, but you do not get to see the reviews for the equipement that was damaged or lost on the way, obviously). So please use the safe and tested sources helping me to review more of these.
Can't wait to hear your toughts on Fm acoustics FM255 . . .
Can't wait to get that one! :)
You're killing it with these Op Amp and AliExpress videos
This is good stuff, d class evolved so much during past 5 years. It's moving forward while other designs are basically frozen. I keep an eye on that as these sound better and better while price stays quite low - it's way cheaper than cheapest clone amp.
@@Error8x8 (but I hear you. The thing is all this stuff I review are things that made me curious so I bought them. I know basically no one watches my KZ vids. But I still make them as they push the IEM boundaries, even if that doesn't make the view counter tick :) )
amazing, please don't stop the stream of stuff arriving! For when you do the review, can you please compare it to the other amps you got? from the cheapest ones to the most expensive ones? like A1, FM300A, D5 Pro, E405, etc :D thank you!
Thanks! At some point I will do summary comparison, probably when all ordered packages arrive (I buy these with my own money so it's not like I'm on unlimited budget). I plan to do a video, explain which ones are staying with me and why and what are the differences. For now, there's a few contenders on the way.
You can pull of the entire top section from the bottom one so you can reach the op amps better.
Yes, you need to unscrew backplate for that but it's easy. However for regular (not discrete) opamps theres plenty of space if you'll use tweezers or something like that.
Try sx52b/45b, better than akliam. Bigger soundstage, better separation and resolution.
@@onionknight9431 And price?
Does it work for BRZ HiFi E600?
@@k4syxsx52b is about $14, sx45b is about $30. I have 52 in Aiyima ao 7max and a pcm1794 dac. 52 doesn’t work in Fosi ZA3, but 45 works.
@@danieleturrin5625I don’t own that amp so I can’t tell you.
does AkLIAM LC5 op amp (vertical) fit in there?
@@JRadian I think we'll need adapters with short wiring (two DIP8 sockets wired together with something a little flexible).
LC2s may fit directly, I will have to check it
Why opamps so high price.. lol
They're not expensive if you stick to the ones from TI.
@@Error8x8 būt why? Why not make 100?