Then we looked at how expectations have changed over the last 50 years...
"Old School Tone" comes from circuits that are slightly revoiced to eliminate the undesirable behaviors of the originals (flub, fa*ting out, etc.).
"New School Features" allow for far more tone shaping than the originals. In all cases, you can set these amps up to get tone just like the originals, but you can go well beyond that.
The ValveTrain 416
The ValveTrain 427