In my opinion the sound your searching for, Jerry's stage sound/tone at at show on stage, is hard to do at low volumes with professional, concert grade gear like an E120. I have had MUCH better luck for Low Volumes at home, ditching my E120's, twin's pre and 120 watt amp, and use a Fender Gdec modeling amp with a 8" speaker. It models 4 signature tones from the Fender Twins you could only get at blistering volumes with a twin, but can turn it down or listen with a headset or play in your bedroom at night. I know its close, because when I jam along by plugging my Ipod in and play along Jerry and I have the same clean tone he has through the amp or headphones, especially on early-mid 70's stuff. It has a Gain knob to clip at the right volume and sound. Its also has different loops with bass, piano and drum beats in variable keys to jam over to practice. $100-149 are the prices I've seen. Blues Jr and Champs are great amps , but you have the tubes and such to maintain for a tiny amp that modeling does fine for at that volume. Modeling is superior for practice, learning and low volumes, Pro's tend to sway from it because at loud stage volumes it doesn't sound the same as the real deal. I think that's true with exception to the Ax and 11 racks (and a few other's not pertaining to Jerry.) I wish we all knew what Jerry used in his hotel rooms or at home he felt gave him the tone like his stage rig, but I'm sure its not a practice amp with a JBL E120 in it.
I loved the Gdecs twin sound so much I preamped it and tried to amplify it through my big rig. Again at low volumes it was great, at high volumes it was obviously modeled. All amps sound different all have different speakers, you have to try them to know what you like. What I like may not be what you like, but I NEVER THOUGHT this little Fender Gdec would give me the closest Jerry tone I have in my arsenal and for so little money.
I think you will have a really cool amp with a E120 in a Blues Jr or Super Champ. But, it will be a Blues Jr or Super Champ with a E-120, and to clip the speakers or power section will be LOUD any way you turn it. Will it sound like Jerry's rig? I dunno, but i wouldn't think so at low volumes. One thing's for sure, it WILL sound good to play a guitar through!!! I would go with the Blues Jr. if you are set on a classic style amp. If you want an amp that sounds like Jerry playing on stage, bring your ipod and a cord and go to guitar center and play a bunch of small modeling practice amps, and make sure they model a twin reverb. Jerry would sound like Jerry through a Marshal stack, so technique is 90% of the battle. Good luck man, sorry I wrote a novel I am bored waiting on the weekend to start!!
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