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Tube-amp users: do you use overdrives?

My Carvin BX700 has a single tube in the preamp and even with the gain knob dimed it doesn't get quite where I'd like it to be. I use a Mosky Golden Horse set with the gain knob all the way off, the treble knob at noon, and the output knob around 1 o'clock and it puts the tone right where I want it.
 
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Mesa Boogie has a bass amp called the D-180. If you can find one that one overdrives nicely both on the preamps as well on the power section. Some guitar players use it
My Univalve which is a 15 watt amp - True Single ended class A does the power tube distortion thing pretty well. But I used this only for tracking/recording. Not really my thing over driven bass.

I think Dusty Hill setup is also gritty tone - I do not know what his setup is but I know it's Marshall based- I like it but I like ZZ Top is general

And to answer the OP, I would prefer from the amp and preamp and probably just raise the input level high and clean and hit the preamp really hard.

The Univalve is interesting because it is one of the few tube amps that can operate without a speaker connected and then you can take the line out and either bypass the amp eq. Basically a huge pedal.

Sans Amp would be my answer otherwise for cleanish tube amps SVT, Aguilar
 
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On a vintage tube amp without separate gain and master controls you have no choice if you want breakup without pushing the volume up along with it.

The Lounsberry Rupert and Nigel preamp/ODs work particularly well with tube heads IMO since they get a pretty tubey sound all by themselves.

I use a Rupert with an old tube amp I have when I want it to sound cranked for miked recording purposes, or just playing bass without annoying the neighbors.
 
This is a very interesting question and I'm surprised by the answers so far. I always thought I was in the minority using overdrive into a tube amplifier. Seems like most of us do it. I will say that mine isn't a straight up overdrive pedal though. My EBS compressor has a "tube" setting on it that gives the signal some extra harmonics and then at the end of the pedal chain is a Aguilar Tone Hammer D.I. box that I use almost exclusively for gain (the EQ stays flat). It's subtle but it pushes the preamp on my Ampeg V4B just enough to give me a nice growl without having to push the amplifier too hard.
 
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