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Digi-key.Where did you buy the op amps?
Taxes cost me an arm though.
Digi-key.Where did you buy the op amps?
Digi-key.
Taxes cost me an arm though.
NoOr do you think i can get good op amps from aliexpress?
I have a Aiyima A07 also. We will test it some day with @renaudrenaud ;-)It is not worth it for me. Really high import tax to brazil. I guess i will get an Aiyima amp instead then. They don’t seem to have bad op amps or hissing problems and since 3eAudio didn’t answer my question (i asked 2-3 times) about wether they will check their op amps for problems now before delivery, i guess they don’t.
Or do you think i can get good op amps from aliexpress?
I have a Aiyima A07 also. We will test it some day with @renaudrenaud ;-)
Today we changed the op amps of the 3e-audio (put LM4562NA). The hiss disappeared, which is good. But the sound is still not as clean as with the 3e-audio TPA3255 cards.
Purchasing op amps from Aliexpress is very risky.Or do you think i can get good op amps from aliexpress?
Referring to the data sheet:What's the best option when it comes to installing the caps? Level 1, 2, or 3?
I think this is an entire sub-hobby to music loving, tinkering with Chinese junk!
Oh okay thank you so I'l order the cheapest then and yes I've seen the pin1 on the chip on the datasheet but on the 3e amplifier board itself I'm not sure with what I should align it with is there any mark or reference?OPA1656IDR is packaged in tape cut reel whereas OPA1656ID is packaged in plastic tube, but the chip in both is the same.
The surface of the chip will be marked with a indented circle indicating where pin 1 is, page 3 of the datasheet shows this.
https://www.ti.com/lit/ds/symlink/opa1656.pdf
Purchasing op amps from Aliexpress is very risky.
If you are lucky then you will receive a genuine product. Avoid cheap things.