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GK MBFusion 800 Tube Rolling
- Thread starter 2string1
- Start date
- Nov 24, 2008
- 5,687
- 19,487
- 41
- Disclosures
- DroppingAcidPedalEtching.com
I don't own one or have any experience with them, but here's what my memory produced from what I think I remember reading.
You have to move a circuit board to access the tubes any your warranty will be void afterwards.
I'm sure GK knows exactly what tube does what, but they're hoping you'll forget about it from their non-response and move on. I'm sure there are a lot of people "who know what they're doing," and mess things up. They will have a response like, "GK told me if I put tube X in my MB800 X will happen. I did exactly what they said and now my amp won't work."
You have to move a circuit board to access the tubes any your warranty will be void afterwards.
I'm sure GK knows exactly what tube does what, but they're hoping you'll forget about it from their non-response and move on. I'm sure there are a lot of people "who know what they're doing," and mess things up. They will have a response like, "GK told me if I put tube X in my MB800 X will happen. I did exactly what they said and now my amp won't work."
No...the tubes are right under the cover very easy to get at. I did end up getting and email, this is what they said.
"OK, I spoke with the engineer and he supplied the following information regarding what tubes drive which stages. The tubes are placed in the circuit left to right as you look at the front of the amp. Each tube has multiple stages stages so each tube may effect multiple functions".
V1 – Input driver and Contour
V2- High Mid
V3- Low Mid/ Bass and Treble
"OK, I spoke with the engineer and he supplied the following information regarding what tubes drive which stages. The tubes are placed in the circuit left to right as you look at the front of the amp. Each tube has multiple stages stages so each tube may effect multiple functions".
V1 – Input driver and Contour
V2- High Mid
V3- Low Mid/ Bass and Treble
