The Boogie Board

Mark IV with 6v6
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Author:  glguitarman [ Thu Jan 26, 2017 8:41 am ]
Post subject:  Mark IV with 6v6

I've had 6v6s in my Mark IVA for over two years now and I really am attached to the tone in all three channels. I like the smooth, warm tone. I don't play this amp every day, my day job has a MK5:25. I like that little amp too, but the mid range of modern Mark amps just isn't quite the same, IMHO.

Anyone else using 6v6s out there?

Author:  swbo101 [ Fri Mar 03, 2017 11:52 am ]
Post subject:  Re: Mark IV with 6v6

Nope, but I've always wanted to try. Are you making sure you are only in tweed mode with those tubes, right?

Author:  glguitarman [ Sun Apr 30, 2017 1:48 pm ]
Post subject:  Re: Mark IV with 6v6

Yes, always in tweed and using the 4ohm output.

Author:  swbo101 [ Thu Apr 05, 2018 12:47 pm ]
Post subject:  Re: Mark IV with 6v6

Did you notice a volume drop with the 6V6's?
Are you using 4 in simul-class or just 2 with class A?
How is the gain in all 3 channels?

Sorry for all the questions, just wondering?


Author:  glguitarman1 [ Sun May 20, 2018 10:33 pm ]
Post subject:  Re: Mark IV with 6v6

Hello swbo101,

My account froze and I had to start a new one.

I love the 6v6 sound in the Mark IV. I had a set of 4 in class A, and I ran them for over three years until they died a few months ago. I haven't got around to getting more yet. Using some 6L6's I had.

The wattage is definitely less with 6V6 tube. I don't really know how to describe the gain in each channel, but overall there is a warmth (smoother?) to the tone that is not present with the 6L6 or EL34s.

The mark IV is not the main amp I play through live on a daily basis.

Author:  gts [ Wed May 30, 2018 10:32 am ]
Post subject:  Re: Mark IV with 6v6

I'm surprised a 6V6 could handle the voltage in a Mark IV!
Then again if always running it in tweed mode the voltages may not be all that high or an issue.

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