Blue Circle CS vs. Unison Unico

FWIW, I just went thru this "intellectual" process a few days ago. I'm getting some speakers which should do quite well with 35wts per channel (not much different in actual use than 50wt) and I wanted a secondary source for them. The speakers are rated at 4 ohm and have an 92db efficency. What influenced my decision most was that the new amp (integrated) is tubes in both the pre-amp and amp sections, has 4 and 8 ohm output taps, is self biasing, is fused so that a blown tube doesn't damage the amp, and has been getting great press. Read up on the Prima Luna. There are two versions, one with EL34's (the one I ordered) and one with KT88's which comes with some internal upgrades and a few more wts.

Have a look at the Pathos Hybrid amps>see their reviews.pathosacoustics.com

Restock:

in response to your question about what else I changed - I actually didn't change anything for the longest time...I just allowed the Unico to break in over a long period of time. It just seemed to get better and better. It was only when I swapped a few other integrateds into my system that I really appreciated what the Unico can do. I tried Roksan Caspian, Roksan Candy III, Classe CAP 151, Audio Alchemy (model???) , Creek 5350se, Primare i20 (very good, by the way - my top choice would likely have been the Primare A30 i think it's called, but the $$$ was too high - nearly double the Unico) and I tried a variety of others (albeit in stores and not at home).

kept coming back to the unico for its overall performance. not the tightest bass grip, but acceptable (i suspect that tube swapping might help that out, but I haven't tried yet).

the fact of the matter was my speakers were simply too much for my room. Also, the large rear ports contibuted to the 'slow-ish' bass (i stuffed them with medium density foam).

At some point I sold my speakers and bought what i thought were a better alternative for my room (wasn't able to try em out before purchase and, sadly, they didn't gel with the rest of my system). Now I'm awaiting the arrival of a pair of Epos M12.2's, which I suspect will do the trick.

Truly, i feel the unico's best matches will be with sealed speakers rather than ported, but the verdict is still out on that one. (just before sellig a pair of NHT 1.3a's - predesessor to 1.5's, I hooked them up to the Unico for the first time and they sounded excellent in my room). Also, the Unico will work better with speakers that are inherently revealing or ones that are even thought of as 'bright', as the Unico itself is on the neutral to warm side.

Further, the build quality of the amp is top notch - it simply ooozes quality.

hope this helps. Email me directly if you have any additional questions.

Steve

I enjoy me Blue Circle CS very much.

It replaced my Linn Pretek Preamp and Bryston 3B poweramp.

I think it is a great value to for the money. It does take a good 100 hours to open up though.

Cheers,
Nick