Hi Leigh, this post is about opamp upgrades to the asus xonar, these go BETWEEN the dac inside the xonar and its internal headphone AMP, so this isn't an upgrade for the amp itself, these are attempts simply to refine the DAC sound going to the internal amp or to an external amp, so its unlikely...

Yep, obviously I can confirm my ST is pci, works with an H6 card. And that yes if you can find it, I believe the original ST has the best SNR, and build quality, of all the essence line.

I believe the STX was discontinued in 2012, to answer your question, it seems you are looking in places that only handled the overstock, dont know where to suggest not even knowing your region, but amazon here in north america is still selling the STX II, and the asus site still lists the STX...

Pretty sure we are, that post just recommends something like the lme47913 an old variant of the lme49860. I didnt know before but I think "tz amp" is just a circuit description, I think you might have confused it as a brand, might be as described here, enjoy...

I was checking the feedback on the v5i's at burson and there is a new user who even had an STX2 that just posted this last week "Big difference in sound quality from the muses. Detail and clarity are pronounced. But I’m having popping and cracking sounds with 3 of them installed still...

Well just to mention my soundcard is the xonar essence ST not STX, and I think some have chimed in here about it working on the ST but I can't personally vouch for any of that as in my system they would make a background noise that would oscillate and then after a bit they would just start...

Hey reyer just chiming in to ask how you're luck was with the lme49990, I have 4x those as well but I use an external amp so I have to decide what to use with them in the buffer so Im still using lme49860's in all spots though its pretty similar to stock. Unfortunately the v5i's didnt work out...

Welcome to head-fi gfache. Actually I have the Asus Xonar ST so I dont have muse opamps in there, but thats an interesting idea to try if the opamps havent actually self destructed like the crackle pop sounds make it seem like, EDIT: Well I tried it with my previous opamp and it still popped...

Thanks but your info doesn't seem to be related as you mentioned using the V5, I am using the V5i-d's, they are much smaller, and I can tell you they never moved a milimeter out during my testing. In fact I have the single replacement they offered right now in the buffer and it also shows...

Hey also curious jonathan, it sounds like such an issue would creep up over time, is that the case? I ask cause I got the sweeping noises immediately after install, didnt seem like there was time for overheating to be an issue.   Edit: Nvm read through your post history, intense, but it sounds...

The sockets dont appear to have any damage, after taking the burson opamps out havent had a problem and I've looked at the socket closely since trying this out.   Interesting about the temps, I'd definitely heard if they have bad contact and or slide out it they could definitely overheat and...

Figured I'd chime in as I was upgrading my Xonar Essence ST to Burson V5i's and its been a nightmare so far.  Put v5i's in both the opamp and buffer and I always get a loud noise that starts to sweep frequencies.    Been trying to get some help from Burson but its been weeks and not much luck...

US/1

You've got 16mb on the nmjb3 cache anyways too

I was considering a karma till it seemed like major improvements in mp3 players are just around the corner, who exactly has this replacement mentioned that replaces due to "I hate having an out of date player buy me a new one!"?