Hello all,
Thanks for this topic on which I can learn a lot of things !
I have AKG Q701 headphones, with a Little Dot I+ that I received two weeks ago, with stock Opamp and stock 6J1 tubes. The sound was pretty good for me, comparing to the headphones directly plugged in to my NuForce uDac.
Reading a lot of things on Internet, I decided to purchase an OPA2107 and a pair of Voskhod 6ZH1P-EV tubes. I've received the tubes 2 days ago and I'm still waiting for the Opamp.
First of all, I would like to say that I really love my AKG Q701, but I just find that it has a lack of bass, in terms of bass "volume", basses are here, but for my personal feeling they are not loud enough. Moreover, I love the highmids and highs that are really precise, but unfortunately to my ears I find them sometimes too fatiguing, particularly at loud volume. All this feeling when my headphones was directly plugged in on my NuForce uDac.
When I received my Little Dot I+ with stock configuration (stock Opamp with stock 6J1 tubes), I found that the bass volume was a little bit better, and high-mids and highs were less fatiguing so it was very good for all points.
Two days ago when I put my Voskhod tubes, I was wondering a lot of improvement since I've read many and many good impressions of these tubes. But I must say that I'm quite disappointed
Ok, It is evident that the sound is more "precise" and more "clean" than stock tubes, particularly in high frequencies. But I find that bass volume is less than with 6J1 tubes, with less punch and impact
Moreover, high frequencies are again fatiguing at loud volume...
I'm still waiting for the OPA2107, and I've also ordered a pair of 6HM5 E900 El Yugoslavia.
Do you think that the OPA2107 will go in the good direction according to my impressions ? Also I've read about the MUSES02, what about it ?
And also, is there some Opamp/tubes combination that work better than other ? For example, MUSES02 will work better with Voskhod 6ZH1P-EV than with 6HM5, whereas OPA2107 will work better with 6HM5 than with 6ZH1P ? Or something like that ?
For your point of view, what is the best combination of Opamp and tubes for the AKG Q701 to have more bass volume impact and punch, and less fatiguing high frequencies ?
Thank you by advance for your answers, and sorry for my bas english, I'm from France
Best regards,
Jonathan.