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Audio Research Ref 250s for Magnepan 20.1s?

OK, I'm thinking about taking the plunge into large tube amp, upgrading. Will the ARC Ref 250s have enough power for the Magnepan 20.1 speakers? Anyone using this combo? The Ref 750s seem too far out there for me but I would like to hear if someone has experience with either of these? Right now I have ARC Ref 3 preamp and Ref 8 CD player along with Pass Labs XP25 phonopre, VPI table with dynavector cart, and Pass Labs X600.5s. I have plenty of power but had an eye opening experience with a friend's Cary Audio 60 watt triode stereo amp. Nowhere near the power needed but it had qualities I desire such as midrange bloom and wide soundstage without harsh upper end. It was bass shy but I do have Nola subs. Should I sell the pass 600.5s and get ARC ref 250s? or 750s (god forbid)?
powerdoctor
peter_s
1,335 posts
 
I ran my 20.1's with two pairs of MB450's to good effect. I found the bass on the 450's to be very organic sounding - I liked it a lot more than several good SS amps I tried in that position.
apfdirtdoctor
36 posts
 
Just a thought...the only large ARC amp that I have heard that has some of the magic Cary midrange...ARC Classic 150??? triode
hifigeek1
770 posts
 
Ref250's are awesome amps and I definitely recommend them.
kenklein1
20 posts
 
I definitely recommend you audition a Sanders Sound Magtech amp. Very transparent and fast with 900w/ch into 4ohms. An audio bargain
noble100's avatar
noble100
2,419 posts
 
Powerdoctor,

From the qualities you said you want, midrange bloom and a big soundstage without a harsh upper end, I would suggest that a simple substitution of another tube preamp might do the job for you.

Your ARC Ref3 is a very nice preamp, however, I don't think many would say it has midrange bloom or that it attenuates the upper treble to reduce harshness. I would pose that most would describe it's qualities as being more similar to solid-state, in that it is accurate and neutral in nature, rather than what has been traditionally considered 'tubey'. This seems like a better starting point than jumping into tube amps right from the getgo.

I'd see if a local dealer can let you home audition a few different brands/models so you can attain the qualities you're after.Just an alternative suggestion.

Thanks and good luck,
Tim
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