I have a vt100m2 too. Great amp. When it comes time to re-tube I do advise you to go to a tube good reseller like Kevin Deal of upscaleaudio.com. Audio research really overprices their tube sets imho. If you have a tube specialist in your area, that might be a good source as well since they can install them for you.
Installation and biasing are a fairly simple operation. There are a few detailed descriptions in the archives. If you like, you can email me and I'll help you out
Also, try the Svetlana KT88's. I put some of those in as an upgrade after using the stock 6550's for 500 hours or so. Definitely a nicer sound - warmer with better midrange.
Installation and biasing are a fairly simple operation. There are a few detailed descriptions in the archives. If you like, you can email me and I'll help you out
Also, try the Svetlana KT88's. I put some of those in as an upgrade after using the stock 6550's for 500 hours or so. Definitely a nicer sound - warmer with better midrange.