wiser87
Head-Fier
- Joined
- Apr 2, 2013
- Posts
- 73
- Likes
- 12
ClieOS, but in your opinion what is better to use the opamp to modify FiiO X3: AD8620, ADA4896 or AD8066?
Will James (Fiio) consider to use ADA4896 for the new production batch of X3?
ClieOS, but in your opinion what is better to use the opamp to modify FiiO X3: AD8620, ADA4896 or AD8066?
I doubt that. FiiO picks AD8397 not just because it outputs a lot of power (more than any opamp that I know of. In fact, more than some buffer), but also offers a warmish sound. They thought a warmer sound is more suitable for the mainstream users, which is their targeted group of buyer.
By spec, ADA4896 seems to be the best. I have no experience with ADA4896 so I really can't say for sure. AD8066 will be the second choice (by spec). I pick AD8620 over AD8066 because I know I like AD8620 better, and it should be enough for my headphone. It is really hard to say for sure until you solder the opamp in as you can't really keep changing the opamp. Every time you desolder / solder an opamp, you will inflict more and more damage onto the PCB. So there is no easy way to try out all the opamp.
Will James (Fiio) consider to use ADA4896 for the new production batch of X3?
can the AD8397 be avoided by using the amp bypass lineout of the x3?
ClieOS, in opamp ADA4896 socket MSOP-8. It is exactly suitable for modification?
Can you talk about the opamp ADA4898-2?
ClieOS, say, ADA4896 can be installed instead of the AD8397 without intervention into the scheme of the device? It is only necessary to unsolder the AD8397, and solder the ADA4896?
It's definitely not a project for someone who has never worked with surface mount stuff before. Even for someone that has, desoldering can be a pain if you don't have the proper tools. If you can be destructive, then it's easier. If you're trying to save the chip, the "simplest" method is probably to buy some "desoldering" solder (I forget the proper name of the stuff, but it basically lowers the melting temperature of the solder quite a bit once it's mixed in). Now you'll have a few seconds rather than a split second to move the chip once you've heated the pins. Heck, I think you might even be able to do it with a heat gun.