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 Post subject: Weak sound, bad tubes?
PostPosted: Fri Feb 23, 2018 6:22 pm 
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Mark II

Joined: Sun Feb 23, 2014 11:02 pm
Posts: 61
Hello,

My Mark V head started to sound very weak on overdrive ch2 and ch3 and failing on ch1. Maybe I have bad tube(s)? My amp was bought in 2014 and I only play at home a couple of hours per week. Do you guys think it could be time to replace all tubes? ($$$ :oops: $$$)

Thanks!


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PostPosted: Fri Feb 23, 2018 9:48 pm 
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Mark II
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Joined: Fri Nov 16, 2012 4:55 pm
Posts: 103
Location: East Coast, New Jersey
If the tubes haven't been changed since you bought it, then that might be a solution. It might solve your issues, so it's a good place to start.
I would bring it in to have it check out. If you play 5-6 hours a week, I doubt it would wear out the tubes unless you had a bad batch of tubes to begin with.

Just as a reference, for the past 5 years I gig with a Mark IV weekly. I play in a cover band and I did over 150 gigs last year at 3 hours a night. I change my tubes after one of them blows which was once every year on average. 2016, I blew two sets of 6L6 over 6 months. Obviously, your mileage may vary.

If you play 3-4 hours a week over 4 years, that is equivalent to a weekend warrior playing a Friday night a couple times a month for a year. I could be time to change your tubes, but I'd be more likely to bring the amp in and have a tech give it a look.

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PostPosted: Sun Feb 25, 2018 3:46 pm 
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Mark II

Joined: Sun Feb 23, 2014 11:02 pm
Posts: 61
I'll bring to a tech. Thanks!

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