AR Ref 600s Best for Genesis2?


I'm looking for the best tube amp for my Genesis2. Now using four monoblocks of VK 60s. The power now are just adequate but lacking the headroom needed for big orchestra.
How do you think about the Audio Research Ref 600 driving the Gen2? Will I sacrifice anything from the VK 60s?
Suchart
suchtan
Thanks Jtinn, for your advice. About a year ago, I had an opportunity to acquire a mint pair of VTL Wotan but I wasn't ready to, just acquiring the BATs. I understand the drawbacks of Ref60os but how about the sound? How do they compare to VTL or BAT soundwise? Would appreciate your sharing of experience.
Suchart
I think the new BAT equipment is superior to the Ref 600s in every way execpt soundstage and ultimate power. The REF 600 MKI & MKII are very thin sounding, tonally inaccurate, hotter than a radiator with bloated bass as well as a huge noisefloor. They are also incredibly expensive in terms of tube replacement (short life tubes as well). They throw one of the biggest soundstages I have ever heard, and have an iron grip on notes. But, all in all I did not think it was worth ever owning them. The BATS, on the other hand, are dead quiet (comprable to ML & Krell in that respect), with exceptional tonality, detailed bass, beautiful mids and highs and great detail.

The VTLs are very good but you have to get the new ones with the latest revisions. If you get the newest VTL 750 Reference amps, they should do fine. The problem is that you are still dealing with a short life 6550c that costs quite a bit to replace.

If you want something speacial, go to the VK-75SE's or VK-150SE's. They are a huge difference over your current VK-60.

Let me know if I can be of any other help.

Good luck!

Jonathan
Jtinn.. You must have ears of "tin".. The ARC Ref 600's are without a doubt some of the best amps available on the market. They are the antithesis of how you describe them.
Don't listen to this bozo. Arnie Nudell of Genesis Technologies uses the Ref 600's to voice and critically evaluate every 200, 201 and 350 loudspeaker system that he manufactures (They also use NBS Monitor 0 speaker and interconnect cables). Since the designer of the speakers
could use ANY amplifier he choses, I wonder why he chose the ARC gear? Because tonal accuracy and correct timral information is presented by the Reference 600's. They have an ease and grace with large scale orchestral swings, and they never sound strained. Dump the BAT gear and audition some ARC Ref gear with the Genesis 2's.. they are made for each other.
Jim, thanks for your opinion but I think you don't have to offend Jonathan just because he doesn't like the Ref 600s,do you? From my own experience, I'm also not quite convinced by the AR, having auditioned them several times at the dealer's showroom but not with the Genesis. The reason probably was because the Ref 600s need at least an hour to start sounding good according to Robert Harley's review in TAS and I never have the chance to listen to them that long.
The four VK 60s I'm using sound very good to me and Jonathan is absolutely right about their queitness compared to other amps my experience. The only limited factor is the power reserve which I sometimes wish I had more for some sonic spectacular recordings.
I would never be interested in the Ref 600s new at USD 40,000.- but found them on sales at less than half the price and wonder if they are a good buy.
Seems like I need a third opinion on this.
Thanks again Jonathan and Jim for your kind advise.
Suchart
Jimj: Not only are you insulting, but you also must have very limited auditioning experience. The Ref 600s were the biggest disappointment in the ARC line. The Ref 300s blew them away in terms of musicality as did the VT100MKII & 200MKII. I have a great deal of experience with all of the ARC equipment that we are talking about and unless you are talking about the newest versions, I hold to my original post.

If you own them and need to justify to yourself how good they are, fine. I just know the truth.

Suchtan: Just as a note, I sold a pair of Ref 600 MKIIs for $15,700 about 3-4 months ago. I had a very tough time selling them.