New KT150 tubes?


Has anyone any experience with these pretty new tubes. There are already one or 2 amps I know of, that use them. The review of one of these amps in a UK magazine suggested they were a little warmer and more natural sounding than the nearly new KT120's

The article also suggested they were a straight swap for KT120 based amps, with no adjustment necessary. They are more than twice the cost of KT120's, but still not too costly compared with NOS tubes. I know changing from KT88's or 90's to 120's. did require some amp modification. I have an ARC reference 75 and might want to try the new tubes at some point, ARC don't seem to have a customer E-mail service, to ask the question
david12
Oh, I seldom underestimate the 'potency' that is the playful use of the intentional parapraxis, or indeed the deployment of the mixed metaphor in bringing forth the 'small' man with their need to indulge in pompous grammatical correction , particularly when they have little of value to add in respect to the subject under discussion.



Wolfy ... I think what Tsushima1 is saying is that you are a lowbrow. LOL

Not to worry ... my wife says the same about me. ;-)
I only ask that the poster understands the posted words, and at least attempts to use them correctly...example: "potency" makes little sense in the context of this exchange, and "intentional parapraxis" is an oxymoron. My criticism in this case avoids "mixed metaphor" as it is nothing if not direct, and sort of fun...man...I need to get out more...
We have another ARC VSi75 owner, commenting elsewhere, in respect of his unsanctioned adoption of the KT150. He reports that no obvious anomalous behavior has manifest itself,as yet,from either amplifier or himself.

Commenting further, it would appear that he considers the substitution to have been quite efficacious.

"I'm so glad to tell you that this is the greatest improvement I 've ever heard for the money!

Maybe a 15 hours - break in is just a little bit to say that Vsi75 is born for KT150, but soundstage is wider and deeper than ever!

Bass is more bass and midrange is so natural and 3D through my Sophia 3!"

It would be useful if these guys were in a position to monitor bias readings and transformer/circuit temperature.

Perhaps I may make a few inquiries, and post any further information on this point.



Thanks for the update Tsushima. Hopefully Gary (Hifigeek) will catch this thread and post another ARC update on status.