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The Fender Bassman 100T thread

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what did you switch your tubes out to again? (power and pre) and what difference did you get?

I first put some JJ EC83 S pre's and a ECC81. I go back and forth with Electro-Harmonix 12AX7-EH and have them in now.
For power tubes I started with TAD 6L6GC-STR and tried some Winged "C" (SED) 6L6GC that a friend lent me.
I really liked the Winged "C"s but I am happy with my TAD's.

With this being a 100 watt head tube break up is much more noticeable. How and when the tube breaks up makes a lot of difference in your over all tone. Cleaner mids and highs come through better with some tubes too. The Winged "C"s stayed the cleanest and broke up the nicest of the tubes I have heard.

It is very hard to give a definitive definition of different tubes. I have found that the way your speakers react to the break up is a big part of it. With what I have it sounds totally different through my 3015's then it does through my Peavey BW's and a GK 210.
This is why any sound clips you may hear means nothing unless the person making the clip plays the same way you do, has the same bass and the same cab. The way your speaker reproduces the tube break up is as big a part of it as the tube itself.
 
Im not much on descriptions but the winged c's were worth every penny. its like with the GT's there was a slight fog and visibility was limited but with the WC's the fog has lifted and visibility is unlimited. u can here every lil nuance of the note. sooooo clear tight and fast. its like the amp got a shot of adrenaline. it seems like the GT's lagged. Im pretty sure i read in a review somewhere (i think the wattford valves website) that the WC sounded best ran hot so i tried that for a few but it wasnt over the top amazing worth it to shorten the life of my tubes. Also i need to spend more time with the gain and blend turned up to describe it but that also sounded awesome. i am enjoying the sound of my active Brian Moore Guitars i4 much more with the new tubes as well. Oh and im running it with a Goilath III.
 
Im not much on descriptions but the winged c's were worth every penny. its like with the GT's there was a slight fog and visibility was limited but with the WC's the fog has lifted and visibility is unlimited. u can here every lil nuance of the note. sooooo clear tight and fast. its like the amp got a shot of adrenaline. it seems like the GT's lagged. Im pretty sure i read in a review somewhere (i think the wattford valves website) that the WC sounded best ran hot so i tried that for a few but it wasnt over the top amazing worth it to shorten the life of my tubes. Also i need to spend more time with the gain and blend turned up to describe it but that also sounded awesome. i am enjoying the sound of my active Brian Moore Guitars i4 much more with the new tubes as well. Oh and im running it with a Goilath III.

Did you leave the stock preamp tubes?
 
I don't normally use the tuner out on an amp, preferring to go through a pedal in line to the amp. Last night I thought I would try the tuner out plug on my 100T and was surprised that it does not work when in standby - I cannot mute the amp to tune without turniung the volume down and losing that right spot on the volume control for the gig. Guess I am back to the in line pedal - am I wrong or does anyone else find this annoying? I assume it is the same with the tuner out on other brands too? Just does not seem much point to me. Haven't tried it with the amp's DI connected, I suppose the same applies.
 
I dont think ANY tube amp would send a signal to the tuner out in standby as the power section is basically shut down. That is why there is normally a tuner mute switch. On the 100t the mute switch is engaged by pulling the master volume knob straight out. Keep your volume setting intact and tune away!
 
It seem like the passive channel gets the most attention, but who has spent some time with the active side? There seems to be a lot of possibilities to be had with the combination of gain, blend, volume, and master. Any favorite settings, or observations?
 
It seem like the passive channel gets the most attention, but who has spent some time with the active side? There seems to be a lot of possibilities to be had with the combination of gain, blend, volume, and master. Any favorite settings, or observations?

I usually use my roundwound bass (Casady Epiphone) on the active channel, flat wound (G&L L-1000) on the passive. (Both are passive basses.) I normally run the Epiphone clean with a slight mid boost probably around 2k or so I'd guess, sometimes a little boost on bass depending on the room, slight cut on treble. For roundwound distorto-songs I'm usually at 5 on overdrive and 5-6 on blend.
But I have been experimenting a lot with the flats and the overdrive, and I'll be working that in soon. I've found some sweet spots around 8-9 on the overdrive, with blend as high as 7, that I'm really liking. Bass still sounds round in ensemble, but the distortion makes it poke through nice and present, and when guitar drops out there's this lovely grind that comes through from the bass.
The eq on the active channel still seems bizarre to me, especially the mid control, but I've found settings I like and feel no need to add any external eq.
 
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