Mosfet power amp question

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MikeO
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Mosfet power amp question

Post by MikeO »

Does anyone know if Mosfet power amps require a load like a tube amp, or if they are akin to a solid state amp and can be run without a load on the power section. I have a GK 2100 SEL (digital preamp, mosfet power section) and I am running the "send" signal from the effects loop to a tube power amp because my Marshall 9100 tube power amp sounds much better than the SEL's mosfet power section. At the moment, I have a dummy load on each of the speaker outputs (it's a stereo amp) just in case, but I figured someone here smarter than me would know if I need the dummy load or not. :idk:
Amps: 5150 (w/bias mod), 5150 II, PRS MT-15, FJA PV XXX, Framus Dragon, FJA PV Penta, PV Rockmaster-->Marshall 9100, PV Ultra 120
Cabs: 3 Marshall 1960B, Laney GH412, Avatar 2x15, PV XXX 4x12, Bogner OS 2x12.
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GuitarBilly
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Re: Mosfet power amp question

Post by GuitarBilly »

You should not need a load for that.

If the master volume controls the power amp volume turn it down to zero just as an extra precaution.

But it should fine either way.
Guitars:
'78 Les Paul Pro / '89 SG Special/ '04 Gibson Les Paul Classic 3 pickup / Jackson Star/ Endres Tele / Fernandes Rhoads/ ''74 Hohner MIJ strat/ 2 Partscasters

Amps:
Depends on when you ask. I got tired of constantly updating this section lol

Cabs
Marshall 1960A w V30s/ Seismic 2x12 w Redback and V30.


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MikeO
Hall of Fame Member
Posts: 888
Joined: Tue Jan 22, 2013 12:21 pm
Location: Danbury, CT

Re: Mosfet power amp question

Post by MikeO »

Thanks Billy! :thu:
Amps: 5150 (w/bias mod), 5150 II, PRS MT-15, FJA PV XXX, Framus Dragon, FJA PV Penta, PV Rockmaster-->Marshall 9100, PV Ultra 120
Cabs: 3 Marshall 1960B, Laney GH412, Avatar 2x15, PV XXX 4x12, Bogner OS 2x12.
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