Yes. I've read your feedback of the Presonus HD7 in the Superlux thread. From your feedback, the difference isn't big compared to the HD668B. Thing is, I want my next upgrade to be substantial. I'm saving up for something in the $200 to 400 range, preferably open or semi-open.
I just did an A/B with the HD7 and 668B and the difference is in a slightly bigger 'body' to Adele's voice and a step towards the mic, but soundstage and the rest remains the same.
For a SL and SL OEM it's on the top end of that line of drivers and design. The best or nearly so.
The entire SL/OEM line is good, but you are correct in that it's just improvements within that frame and no farther. Only so far to go.
It's a very good $36 hp, but if you want BETTER then you are on the right track.
Edited by marone - 3/2/14 at 6:26am