audio Research REF 110 and KT 120 tubes


Hi

I have a REF 110 with 6550C tube
i'm looking for someone who heard the REF 110 with new tubes KT120
(i know it's possible to change them, Kalvin from ARC confirmed it)

If yes, how the REF 110 sounds ?

Patrice
atarifr
For what it's worth, I dropped ARC supplied KT 120s in my Ref 110 and can say with assurance that they provide noticeably more power, dimensionality and transparency. The caveat is that I did this bit of listening with a temporary pre (in place since I sold my Ref 5) as I await Ref 40 to be delivered next week. The pre is by a small manufacturer who I would rather not name until I have concluded my listening with the Ref 40. I am confident that not more than a handful of Agoners own this pre.
In any event, there is a stridency in the lower treble upper mids that I did not hear before, possibly because my 6550s , with less transparency, did not reveal as a preamp or source (cd) problem.I suspect it is not the fault of the new tubes. I will report back after Ref 40 break-in which may take some time.
If it works out as I believe it will, I will be able to wholeheartedly recommend the kt 120s.
thanks for your review
so the KT120 can be mount ont the old REF 110
that's a good new
I had some informations of Kalvin from ARC:

i have a REF 110 from 2008 (230V - 50Hz)
i would like to know if i can put KT 120 tubes instead of my 6550 tubes

Thanks

"Yes you can. They are a direct replacement.

Leonard Gustafson
Customer Service"

Thanks Kelvin

inside the new REF 110 it's the same as the old (like mine 2008)
the only difference is the tubes KT 120 ?

How the ref 110 does Sounds with the KT 120 ?

regards
Patrice

"Hello Patrice,

The KT 120 has more dynamics and better bass than the 6550. The amplifier also has more a little more headroom before it gets compressed.

Best Regards,

Kalvin Dahl
Customer Support"

Thanks Kalvin

inside the new REF 110 it's the same as the old (like mine 2008) ?
the only difference on the new REF110 is the tubes KT 120 inside ?

"Hello Patrice,

Yes. The only difference is the new KT120 tubes."
BTW I just retubed a VS60 with KT-120's. Awesome. In case someone was wondering if you can put KT-120's in a VS60. You can.
How about putting one of these KT 120 tubes in the Ref 3 power supply location? I would think that would make for an improvemnt in an already great preamp. They will be available sometime this year, correct?