No, even the series2 were stock parallel loops.
I've always read that on the dual/triple you shouldn't run the bold and diode settings with EL34 tubes, but on the series2 single they have the EL34 option and all you can run is bold/diode settings, obviously because that is all you have on the...
Another thing this really excels at is boosting gain pedals of any kind, or solid-state amps.
I used to use a mxr 6-band with pushed mids for this, but these do it so much better, and with less noise overall per the amount of added gain.
I've had my series2 single since 09. One of my favorite things about it is that you can get to all the preamp tubes without removing any power tubes and/or rectifier tubes (like you would on the dual/triples. That makes it very easy to audition various preamp tubes at different positions.
I had...
EB for me. I have one guitar that likes boomers better. It's a very scooped guitar, heavy in the lows and zingy in the highs, so the boomers round-cores seem to add more midrange content vs any of the standard hex-core models.
25.5"
turbo slinky 9.5-46 for Eb
ultra slinky 10-48 for D-standard...
Oh and obviously a big thanks! to Wayne for this. I've been wanting another one of these forever so I can Velcro one on my board, but the focus rarely come up anymore and I'm sure they'd want $300 or more for one these days. IMO there's nothing better as a boost for actives and very-high-output...
Griffin Analog's new "scythe" boost is everyone's chance to get a vfe focus clone that has a couple slight improvements.
a. The scythe has a slightly wider frequency spectrum than the focus when both pedals are set at absolute minimum filtering, in other words with the toggles set to shallow...
I'd suggest a quad of classic lead 80s. The newest versions are UK-made, but the MIC versions are killer too.
Also there are the UK-made Mesa 90w black shadow versions that are very close to the same thing.
The Scythe (focus) is actually a big win for anyone wanting a very organic gain/mid-booster.
The term "transparent" gets very overused these days when it comes to boost/od circuits, but these really earn that description because when you engage it you still retain so much of the same...