mcintosh ma 6600 vs rega osiris vs nad m2

I could listen to my 6600 24/7. You just never get tired of it! I've heard the Rega and while it's a very respectable amp, there's no comparison to the 6600 (YMMV).

Love my 6600! All of the above is true.

How would you go about comparing the NAD M2 with the McIntosh? Just curious. They are totally different pieces. The Mc is an integrated amp that does not accept AES/EBU or any other digital input and the NAD M2 does accept AES/EBU.

The NAD M2 is not an integrated amp. Its a direct digital amplifier.

If you actually compared them, you would need to say what kind of DAC you used with the Mc.

I love the M2. Coupled with the right media server, the sound is incredible.

I own the Osiris and it is fantastic. Compared it to the Pass Labs INT-150, Plinius 8200 MKII, Coda CSi, and NAD. To my ears the Rega is the most musical and refined. It has more soul and smoothness than the rest. Not to say the others are not good but the Rega is special.

I have just received the combo Isis + Osiris. Even being on burn-in process, I can confirm that it is just an amazing amplifier. I have already heard the Mcintosh and Nad and, for me, the Osiris is in another league. My previously set was a Gryphon Callisto 2200 Integrated amplifier and Gryphon CDP1. I had the chance of comparing the Osiris to Gryphon Callisto 2200 ( for me still one of the best integrated ever ) and I can assure that the Osiris is at least on the same level ( the Callisto has a bass extension and speed difficult to be match )but the Osiris has a "magical" sound..should be heard. It has an enormous sound stage and very transparent ...very, very smooth sound. Long listening session without fatiguing.. I am very happy with my purchase.