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Old 04-24-2015, 11:56 AM
Maxflo Maxflo is offline
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Default Manley 250 Monoblock - upgrade to 500

Hi I have a question do you know if I can make from 250 monos 500w version by switching tubes only? or it is not so easy?
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Old 04-24-2015, 11:58 AM
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Hi I have a question do you know if I can make from 250 monos 500w version by switching tubes only? or it is not so easy?
Maxflo.......I believe you must be dreaming.


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Last edited by jdandy; 04-24-2015 at 04:13 PM.
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Old 05-04-2015, 06:42 PM
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Only stereo amplifiers could be made bridgeable to mono.
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Old 05-04-2015, 07:03 PM
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Sal........And not all stereo amplifiers can be bridged or paralleled. A good example is the new McIntosh MC452. It has no provisions to be bridged like the MC402 amplifier.

I think Maxflo was hoping to be able to double a tube amplifier's output power with a simple tube swap. That's not going to happen.
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Last edited by jdandy; 05-04-2015 at 08:33 PM.
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Old 05-04-2015, 07:55 PM
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Originally Posted by jdandy View Post
Sal........And not all stereo amplifiers can be bridged or paralleled. A good example is the new McIntosh MC452. Ii has no provisions to be bridged like the MC402 amplifier.

I think Maxflo was hoping to be able to double a tube amplifier's output power with a simple tube swap. That's not going to happen.
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Old 05-04-2015, 08:37 PM
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Mike.......If a tube swap was all it took to double output power, I would be the first to roll a set of KT150's into my pair of MC2301's and up the ante to 600 watts.


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Last edited by jdandy; 05-04-2015 at 08:39 PM.
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Old 05-04-2015, 08:42 PM
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Since power is proportional to voltage squared, maybe using a variac to raise the voltage by a factor of 1.414 to 172.8V will double the power output.



REALLY, DO NOT DO THIS!!!!!
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Old 05-04-2015, 09:09 PM
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Since power is proportional to voltage squared, maybe using a variac to raise the voltage by a factor of 1.414 to 172.8V will double the power output.



REALLY, DO NOT DO THIS!!!!!
That would definitely let the magic smoke out!
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Old 05-05-2015, 01:24 AM
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Quote:
Originally Posted by jdandy View Post
Sal........And not all stereo amplifiers can be bridged or paralleled. A good example is the new McIntosh MC452. It has no provisions to be bridged like the MC402 amplifier.

I think Maxflo was hoping to be able to double a tube amplifier's output power with a simple tube swap. That's not going to happen.
I know Dan, a true shame, imagine, my MC207 has 7 channels and it could
morph itself into several combinations doubling the power. I was stating
that at least you need a stereo amp and that alone is not guaranteed.
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