Hi Jim. Just get yourself a Menatone Pig and be done. I freaking love mine with passive bass guitar.
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A few words about Menatone's amp-in-a-box pedals. In my brief experience with them:
For best results, play them as you would an actual tube amp; better still, as you would when playing into the particular model of amp each one is emulating.
Of any make/model of amp-in-a-box type pedal that I happened to play (not nearly all of them, I admit), far and away Menatone's behave most like an actual amp. It's as much about how it feels to play into them as how they sound when you do.
Several months ago I opined this to a guitarist friend, who collected Menatone pedals long before I did. A week or so ago from now, he wrote to say that he finally tried playing one (his Pig, I believe) like an amp, and he found it to be true. It was like an epiphany for him.
Here is my current Menatone amp-in-a-box pedal collection, with the amp(s) I believe each emulates:
- Fargen VOS MkII 4-knob (Fargen Olde 800 MKII)
- Kar Krash 7-knob with toggle (Trainwreck Express/Komet Songwriter)
- Ms. Foxy Brown (Marshall model 1974)
- Workingman's Blue 8-knob (Marshall JTM-45)
- Wreck'T 4-knob (Trainwreck Express)
- Wreck'T Mk3 5-knob (Trainwreck Rocket)
I have heard each played with guitar (mostly by my eclectic shredder friend and a bit by me) and with bass (by me). None of them sounds quite like any other of them, though there is serious overlap between the Kar Krash and the Wreck'T 4-knob as expected. My first impressions reviews of the Workingman's Blue and the Wreck'T 4-knob are in this forum.
Among the Marshall model emulators, the Pig's voice is distinctive. The Pig sounds raw, simple, and elemental like the Ms. Foxy Brown, but with no real low end loss. Also it sounds like a big beast vs. a little 18 watter.
The Workingman's Blue 8-knob is the more obvious Marshall emulator suitable to typical bass guitar sounds, but the Pig is far more rock and roll; more down and dirty.
But there is a catch. The bass control is pre-drive. The Workingman's Blue and the Wreck'T 4-knob are like this, too. As you increase the bass knob value, you drive the "power tubes" harder. So for bass guitar there is an inherent trade-off, and you have to find your sweet spot. It will depend on your playing style, taste, etc.
Since I could go on about this ad nauseam, I'll stop there.
I will only add that these are like no other drive pedals I own; and that for guitar or bass they are real gems.