Audio Research preamp ratings & sound differences

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SP-9 Mk3...didn't like it at all.

LS-10...blackest background I ever heard. This preamp was so
good, I bought it twice. When this preamp was good, it was
incredible, but could be inconsistent on certain recordings.
Extremely rare, they only show up for sale on the used
market once every five years or so.

Ref-1...loved it, except for periodic mid-bass bloat on some
songs.

Ref2 Mk2...excellent preamp, solid from top to bottom.

Ref3.......Game-changer. Head and shoulders above the very
excellent Ref2 Mk2. I still have it and love it.
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I started my HiFi journey with ARC LS1 in the 80's. It replaced my Adcom solid state preamp at the time. I was so happy with the result and stayed in the tube camp until now.

I recently changed from 40th Anniversary to Ref 10. The improvement is also very obvious. To me, ARC preamp is the best product from the factory. I have also used other ARC products but preamp stands above the others.

I'm with Marty on this one.

I agree with Bifwynne's response.

SP9 MKII nice. SP 11 was impressive. SP 17 wasn't impressive to me, but I was considering upgrading from the SP 11 and the SP 17 was actually the entry level pre-amp that someone suggested I try. Wasn't close to the SP 11.

REF 3 was a substantial upgrade that presented the sound in a very nice way. The SP 11 with new tubes was actually close, but the REF 3 was better in such a way that it justified (interesting word) my upgrade.

The REF 5 was just not that much better than the REF 3 to justify an upgrade to me. However, the REF 5SE was really nice and when I can, I will obtain one. It was a very nice unit that was "that" much better than the REF 3. Don't get me wrong, the REF 3 to this day still is better than most pre-amps out there.

I have heard many of the other AR pre-amps you listed, however, I would like to caution those that have not done direct A/B comparisons, to be careful in their descriptions as you are going by memory and not actually physical A/B comparisons.

The best thing to do when considering a new component is to take it home and simply remove the existing component and replace it with new and listen back and forth to your favorite music and see/hear if the differences justify purchasing the new one.

Mistakes that people make.
1. Purchasing based on someone else's opinion and not your own.
2. Not taking the equipment home for a direct in-home demonstration and see/hear for yourself. Then after purchasing without in-home demo first, taking it home only to find disappointment.
3. Letting someone pressure you into purchasing, when something inside you is telling you to slow down.
4. Being in the amp of the month club and purchase based on peer pressure.

enjoy

Yes, whatever you call it, the modern ARC sound I hear is not the traditional tube sound one would hear with older tube gear. Its hard to distinguish from good SS gear. Not overtly "tube" sounding. Just very clean and effective. VAC gear I have heard has also struck me this way. What others? Are there two camps of tube sound really, the more modern/detailed/neutral and the older smoother more rounded one?