Great Tube for V1
I recently purchased a used Marshall JVM amp and thought I should change out some of the pre-amp tubes since the tubes were still original and it was a 2008 model. Honestly the amp sounded pretty good when I first fired it up but thought I would still change out the V1 and V2 just to see if I could hear a difference. I put a thetubestore Preferred Series 7025 in the V1 and a Tung-Sol 12AX7 in the V2, and my god the amp came alive and roared some sweet Marshall tone. I couldn't believe the difference and I could not be happier. I highly recommend this tube in the V1 spot.