I found a very clean used V4b on GC a few weeks back and have been trying different speaker combinations in my rehearsal space and at gigs. First was 2x Fender Rumble V3 115s from my other rig. This is my first all tube amp and I must say the responsiveness of the tone controls actually overwhelmed me at first. I spent at least 2 hours just tweaking and finding where my sweet spot is with these speakers (horns off). Don't construe this as a negative! It was a totally enjoyable learning experience.
I play a '77 Tele bass with heavy gauge D'Addario Half Rounds. I like a bottom heavy sound (obviously) and set the V4 Bass at 3 o'clock, Mid 3K at 2 o'clock and Treble at 1 o'clock (bass boost and treb boost off). I gigged with this combo and it sounded awesome. Real bottom and thump with a taste of Ampeg grind over the top. In a local bar with no FOH support and about 50 people in the room, I ran gain and master at 12noon and it was more than enough power. And for the first time people actually complimented my sound. (not my playing! LOL)
Next, I acquired a pair of SVT 210av...I tested them in the practice space and, as many have commented, they sounded a bit thin on their own. Boosted the bass, but still too thin for me. Tried Ultra bass, but felt that got muddy with my guitar and heavy strings. So, what the hell, I hooked them up with the 2 115s (2ohms total). All I can say I it sounded interesting, but, not better than the 115s alone. Maybe it's the whole don't mix speakers thing. And who wants to carry around 4 cabs anyway!
Continuing on my GAS fueled odyssey, I happened upon a used SVT 212av on GC and scooped it up. I hooked it up to the V4, left the settings as they were, and BOOM, there it was, THE sound (in my head anyway). Thick, but not muddy, note clarity but still ballsy with just a touch of bite. Still, I just had to twiddle around with the settings, but came right back to my sweet spot. Also tried the 210avs with the 212av and got the same result as with the 115s. The combo didn't sound awesome like the 212 alone.
So here I am in the final stages of terminal GAS. I'm selling my Fender Bassman 500 (look in classifieds) to fund a second 212av. I'll probably keep the 210s and the Rumble 115s, just because...and I know sooner or later I'm gonna have to get a VR or CL!
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