easyrider66689
New member
A friend of mine has a Marshal DSL 100 head with 4 tubes, and I just want to know how I go about running it with 2 tubes instaid.. just take two out, or are they installed in pairs.
Marshall JCM2000 DSL 100 help (want to run at 50W)
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J Moose
New member
Re: Marshall JCM2000 DSL 100 help (want to run at 50W)
You can yank either the inner two or the outer two as a pair.
My vote goes for pulling the inner pair which leaves more space between the tubes so they run a hair bit cooler, extending tube life.
Are there rectifier tubes in the DSL amps?!
You can yank either the inner two or the outer two as a pair.
My vote goes for pulling the inner pair which leaves more space between the tubes so they run a hair bit cooler, extending tube life.
Are there rectifier tubes in the DSL amps?!
Robert S.
Super Moderator
Re: Marshall JCM2000 DSL 100 help (want to run at 50W)
SS rectifiers in the DSLs.
The thing is though that dropping the DSL down to 50 watts really doesn't make the amp that much quieter because you only lose 3db by cutting your watts in half. He'll probably lose a little headroom in his cleans at simular levels and maybe a little more grind out of his gained channels but 3db isn't a huge difference in the land of Marshalls.
If he is just looking to lower his levels, a power soak might be a better way to go.
It seems to me that you also need to change the output impedance when you pull a set of power tubes but don't quote me on that.
SS rectifiers in the DSLs.
The thing is though that dropping the DSL down to 50 watts really doesn't make the amp that much quieter because you only lose 3db by cutting your watts in half. He'll probably lose a little headroom in his cleans at simular levels and maybe a little more grind out of his gained channels but 3db isn't a huge difference in the land of Marshalls.
If he is just looking to lower his levels, a power soak might be a better way to go.
It seems to me that you also need to change the output impedance when you pull a set of power tubes but don't quote me on that.
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