Jeff Rowland Concentra II vs Gryphon Callisto 2200

Thanks alot guys for the valuable info. I do think that both integrateds have different styles of their own. They are both great, well some prefer the Gryphon more and some others like Rowland, which proves to me that people have different tastes in music.

well, it occured to me three other brands, which I do hope that you can comment on.

1- Lavardin Technologies Model IT.
2- YBA Passion Integre.
3- Musical Fidelity Nu-Vista.

Do you think those three brands are up to the task and can match the level of The Gryphon and Jeff Rowland integrateds in terms of Built quality and sound reproduction?

Absolutely. They can all go tete a tete with the Concentra. Everything, remember, is system dependent. I, as I told you earlier, liked the Passion better than the Concentra. You have some killer integrateds on your list. A real high class problem, you've got there. happy listening..

The other 3 new ones are not in the same tier. The Gryphon
is a nice unit but cold and analytical like Boulder,Bryston,
Spectral , etc. regardless of what speakers you use. The Rowland is unequivically musically better. When do you plan to get better speakers ? When and if you do,the Rowland is more chameleon-like to work with any type of system out there.Service is another issue with the Gryphon being problematic.This is from an owner of both units.

Same tier?, different league?, "unequivocally better?" This is, certainly a matter of taste. The JRDG is certainly in another class, as far as price goes. After that, you've got to listen. Like I said: I liked the Passion better. Is the Passion better? To me, yes. Listen and learn.

The Rowland Piece is a great audio product. Somehow, though, I have never gotten the same feeling of music that I get with the Gryphon.
I have spoken, by email to Flemming Rasmussen several times about his product, and he does not consider the USA to be compatible with his product offering. And, based on his past marketing efforts, hobbiests,and speaker manufacturers, the latter selling his product as an afterthought, I would say that the problem is in his sales approach, not some "market compatibility" issue. I spoke to an acquaintence in the Orient, and he basically, without rancor, stated that the US market lacks the cerebral requirements to understand and purchase such a product. I would sadly have to agree with him. In our society, we are so caught up in quick and, just good enough, that such a tremendously built product does not offer the flash that some others do.
Frankly, my Callisto is better in every way than any separates I have compared it to, and the list is considerable. In all fairness, while I have heard the Rowland, I did not do a head to head comparison. The Rowland did, have more of a hi fi sound in the higher frequencies than the Gryphon. The voicing of the Gryphon is superb, with absolutely nothing that I want to change.
So, while either is excellent, the rare and hard to find Gryphon is my favorite, for whatever that is worth. This comes, as does music, from the heart, not the head.
Larry R. Staples