Well, after years away, I'm back. Got a great deal on a used, but great condition, STL 900 a couple months back.
I had a STL 600 WAY back in the day and remember some good gigs with it. At the time I was playing mostly tube amps and landed on a '77 Bassman 100 as my fav and main amp. I ended up trading off the STL600 for a TH350. I wanted something really small that could be a back up for the Bassman 100 out on the road, and the TH350 fit that bill at that time.
Later I started using a TH 500 for many years, alongside the Bassman 100. Some other amps too. But the Bassman was still my favorite tone (and FEEL), and I've always kind of been chasing that, but smaller box, DI, 4/8ohm capable, and more headroom / volume.
I have to say, after quite a bit of practice, and a lot of time spend dialing knobs, I have to say that I am really impressed with the STL. What an amp. Great feel and response.
Using a 60's jazz with flats, and I feel I've got more play in my pickup blending with the STL than I've ever had before. Some amps can kind of choke off your tone. The pick up is kind of on or off and thats all you get. Better amps allow some blending, like turning one volume pot down 1/4 can give you a very distinct different tone. But past that, not much change. With the STL, I am hearing some vey distinct tone changes throughout much more of the volume pot.
So much on this thread about cutting bass, but
@hasbeen had a setting called the "fat J tone" or something like that where the bass and the mid @ 220 were all the way up. I tried that, and it was a great tone. I know the amp was not designed to only cut bass, so after playing with boosting the bass, I settled on this setting and love it.
Gain button: Out
Gain: 10
Vol: 1
Bass: 1:30
Mid: 2-3 @ 2.5
Treble: 9
Nice. I was able to crank up the treble to 12 for one or two songs and get that supper glassy top end.
Super happy with the STL900 so far.