Any mention of English or British here means tones based around the EL34, which, in turn, usually means Marshall. The P'N'P range also includes a Super Lead unit, but here it's less about impact and more about these valves' squashy nature.
Even at full gain, the tone is cleaner than expected, thus giving a rhythm sound that's closer to AC/DC than Van Halen, albeit without the depth of either. However, when using a humbucker with a decent output, the backed-off sound is expressive for those hard-hitting 12-bar riffs.
This unit suits tones requiring more subtle overdrives, but aside from the lack of gain, it's a perfectly useable option.