I had the Octave V110 before getting the Aavik U300. The Octave really held it's own until pushed to the max. Mids and highs would get louder but the lows stayed the same. BTW what tubes are you using in the Carver? I hated the TS KT120's but never tried the KT150's. I used the Ei KT90 type II with great success (except the lows petering out at max spl's). I've always loved Burmester with Raidho. Naim is very good too. Sim Audio would be pretty good IMO. One thing I found over the years is an amp upgrade has more of an impact when the speakers are better quality. That said the Aavik has a hair more control of the music. Not earth shattering but a bit better.
So I hear you're getting the D2.1 upgrade. I haven't decided yet. Tyler is going to let me break in his D2.1's in my home when they arrive. I have a gut feeling he won't get them back after hearing the D1.1's at Axpona. I did own the D1's for about a year before upgrading to the D2. If you didn't get the D2.1's back yet I personally would wait. I will admit I miss the Octave but mostly only in the winter months. I rarely play that loud where the lows are petering out. The .1 upgrade will have a louder/faster sound by itself.
Have you tried any Ansuz products specifically the Mainz D8 and power cords? To me they don't change the tonality at all but add a more holographic sound stage. Speaker cables and interconnects do the same.
So I hear you're getting the D2.1 upgrade. I haven't decided yet. Tyler is going to let me break in his D2.1's in my home when they arrive. I have a gut feeling he won't get them back after hearing the D1.1's at Axpona. I did own the D1's for about a year before upgrading to the D2. If you didn't get the D2.1's back yet I personally would wait. I will admit I miss the Octave but mostly only in the winter months. I rarely play that loud where the lows are petering out. The .1 upgrade will have a louder/faster sound by itself.
Have you tried any Ansuz products specifically the Mainz D8 and power cords? To me they don't change the tonality at all but add a more holographic sound stage. Speaker cables and interconnects do the same.