There are two op amps, one for line out and one for headphone out.
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Anyone else tried the OPA2107 yet? Installed it in the line out today, and an AD826 in the headphone socket. It's staying in there I think, as it seems to be doing a really good job. Cleaner and more focused than the 4032 I reckon.
The AD826 I still haven't given a proper listen to yet, but seems nicer to listen to with less nasties than the 4562 on headphones. I plan on testing the 2107 on the headphones once its been run a bit, to see if its worth sourcing a second one.
Which other British DAC offers all these possibilities for experimenting with opamps and DAC chips;)?
Stan
Finally had chance to listen to the 7520 (mainly fixed output) , people who know me will say I'm a picky scroat which is why I normally stick with diy, also I enjoy fiddling:o
Anyway I must say the 7520 is a nice little dac and certainly one of the better commercial offerings! its midrange is sweet and quite weighty which I found surprising, I recently repaired a modded TC-7510 (mod21 and Mod21 pt2 ,LM4562) IMHO the 7520 as is betters it, certainly more there in the vocals and a more involving listen to my ears
Any gripes? for what these sell for NO! I'd like a bit more depth , a bit more focus etc but bear in mind this is a totally stock unit.
I've been busy with work but was thinking of doing a Sticky thread for mods/tweaks etc as soon as I can seeing as nobody else bit when hinted a few times :lol: , it will hopefully make things easier for folks to find since this thread is getting huge :)
I have had a play with some TPA6120 opamps, but their ultra extreme slew rate and bandwidth scares me. The LM4562NA with MLC5/MLC6 mod is good enough for the majority of my own listening experience with my audio gear.
STan
Just tried with LM4562 for fixed output first with MLC5/MLC6
and then with these caps removed
Loads better with them removed if using 4562 ;) lets this op-amp breath and its well stable :smoking:
I didn't rate LM4562 in the second position, its not that great at driving capacitive loads , I'll have a closer look at the circuit later, didn't notice if theres low value resistors on the op-amps output
I'm now running AD826 which so far works well
TPA6120 is quite a beastie , AD815 is similar, Walt Jung written a few articles on the 815
Hi all,
do you think The AD826 would be a good choice to use with Sennheiser 650's?
Thanks
Kevin
The LM4562 sounds brilliant with my HD650.
Stan