I don't need fancy features, just a 15" speaker and a way to turn the tone all the way down. Preferably in a sealed cabinet. How much power do I really need? I tell you what, when I'm in my studio, my microTerror and matching 1x8 cab is pretty damn deep sounding. Is there a way to get that tone at a gig without breaking $250? I found this on my local classifieds HARTKE HA3500 BASS AMP HEAD AND ANVIL CASE but I'm not sure if that's just a tube swap of symptom of component failure. Any tips are massively appreciated!