seed · 2025-01-01
Consensus: colossal modern gain; famously complicated, heavy, and power-hungry.
amp · tube head
Dual Rectifier
The Mesa tube head that became the high-gain voice of 1990s and 2000s metal, built around rectifier gain structure.
Why it matters
Introduced in 1991 and still current, it is the amp the 'sag' description of rectifier gain comes from.
Note
THE 90s/2000s metal voice — recto "sag" gain structure.