VTL Transformer Up-Grades, Worth It?

First of all as far as I know that the signature transformer upgrade is not available on all VTL models. It is available only on latest models starting from MB185 or greater. I recently spoke with Bea from VTL on that issue.

Funny this subject came up. I am totally new to tubes, but I ran across a pair fo VTL 225 deluxe mono blocks a few weeks ago that needed repair. I sent them into a local tube shop and it turned out to be a minor issue with a fuse! I thought these would be a nice intro into the world of tubes amps. Since I have a ARC tube pre amp.

I finally got the amps back and dialed in. I hooked them up to my Magnepan 3.6R and talk about Goose bumps. I was listening to a new "used" CD I just got of the "Cowboy Junkies" in Concert and I was floored at the performance of these amps with my power hungry 3.6R. The bass on the Maggies was incredible. The only issue I had was that these mono blocks is the heat the generate. Am I converted? Maybe.

To think it could be improved with a newer power supply is something I need to consider, but for now I an still in aw of their performance.

How much is the upgrade? I guess I should call VTL.

By the way mine have the B+ fuses which I hear is must have for safety.

Regards,

Jimmy

Marakanetz - I think what you are referring to is the current range of VTL models that are made with this transformer (the Signatures and the References). They do, as far as I know, offer this transformer upgrade to be retrofitted at the factory for certain older models which originally were manufactured with what VTL feels were lesser output transformers. I am not sure off the top of my head which models VTL offers this upgrade on, but I do remember seeing the list on their website.

Jimmy - Just to reiterate, the upgraded transformers we are talking about here are the output transformers, not the power supply transformers, although that may also be a possibility for some of VTL's older models, which as I recall had a reputation for developing power transformer hum until they changed suppliers at a certain point. Also, all the VTL models had B+ fuses, but until recently they weren't high-rated enough to protect the circuitry under all failure circumstances. If you do send yours back to the factory for upgrades, they will also recommend that you have those fuses and holders updated as I described above. BTW, care to tell us what you were using before to drive your Maggie's?

The Transformer upgrade was recommended by VTL. A power switch quit working on one of the amps and I called to get information regarding repairs. Really nice people.

I did have my amps upgraded by VTL. The upgrade’s included the Signature transformers and the addition of B+ fuses. Dealing with Bea Lam was great. She answered all my questions and never sounded condescending like some High End companies. After reading a few of the comments regarding VTL service I was a little worried but the whole experience was enjoyable. Oh ya, the up-grades are worth the money! Many thanks All.