ARC REF 110 owners


All those with extensive experience with the above mentioned amp, what do you think about the timbre reproduction ie piano, voice, up right bass etc? How long did the amp take, in terms of total hours, did it take to sound its best.
ff116

Showing 5 responses by bifwynne

Hey Cmalak, checked out the Wilson phase and impedance chart. I was totally floored because it looked very similar to the readings for my Paradigm Signature 8 v2 (w/ Be tweeter). The curves in the bass region look like a double humped camel. Weird/???

www.hometheaterhifi.com/home-theater-speakers/476-a-secrets-speaker-system-review.html?start=3

I don't know if this will be useful to know, but my front end is an ARC Ref-5 and my amp is an ARC VS-115 (w/ KT-120 tubes). Although the Ref 110 sounds better than the VS-115, the two amps share similar power and other electrical attributes and my amp seems to drive my S8 fronts very well across the full FR. I use the 8 Ohm taps; tried the 4 Ohm taps, but the sound sucked. As an FWIW, I recall that ARC uses Wilson speakers in their sound room. So . . . I surmise that you should be getting superb results with your rig.

I would try switching taps as suggested by George (Hifigeek). Also, how old are your Ref 3 tubes. I believe that ARC recommends replacing the 6550C PS tube every 2000 hours and the 6H30 tubes every 4000 hours. If still no luck, call Cal at ARC.

Please let me know how you make out. Hey, at least you can ski on the impedance and phase curves, but only if you're expert skiier. LOL :)
Ff..., the REDF 3 tubes should be ok. Now, when you say you have 185 hrs on the Ref 110, is that all? IOW, is this the 1st set? If so, I think the amp is still breaking in.

You say that the speakers are hooked up to the 4 Ohm taps. Have you tried the 8 or 16 Ohm taps yet. It's ok to experiment -- you won't hurt the amp or the speakers.

If you're still not happy, call Cal at ARC. He's very helpful. If still no sparks, call Wilson.

All I can say is that there should be great synergy between the Ref 3 and Ref 110. And I've never heard a disparaging word about the Ref 110.

Please report on how you make out with the taps.
Ff..., one last question What source inputs (e.g., CDP. TT) are you using. Also, have you plugged anything into the Ref 3 OUTPUT jacks, other than the Ref 110. I have a reason for asking these questions, but it's too long to get into now.
Gosh, I feel like a doofus, I forgot to ask if you checked the bias on your KT-120 tunes?
Ff... how have you loaded the Ref 3 outputs, other than the Ref 110? If you have hooked something else up to the Ref 3 outputs (e.g., a subwoofer), other than the Ref 110, what is the input impedance of the other devices? What phono and CD inputs are you using?

Also, if it's not too hard, I would double check the bias of the KT-120 tubes and make sure they are all lit up. Power tubes drift the most when new.

Just trying to cover the obvious. If you call Cal at ARC, at least you can tell him that you covered the regular bases.