Based on Sunn® Coliseum 300
Sunn Coliseum 300 Head.
Solid state amp made in the USA.
300 Watts @ 2 Ohms. Also works into 4 (200W) and 8 Ohm 120 w cabs.
Compresor 2:1 ratio
Contour 6 db 60; 3db 500 hz; 6 db 4khz
Eleconic corssover: from 100hz to 1khz
It sounds very warm and close to a tube amp sound.
The EQ controls give loads of different tone options
More compression is possible with the gain control
Old SS amps have a raw warmth and character
It’s got a great strong tone, and the eq is extremely flexible and powerful.There are filters “in between” each band of the EQ, so they don’t effect each other. You can boost the 62.5hz, and not effect the 125hz, so on. Which is the exact opposite of say, the Fender tone stack, where you turn down the mids to turn up the other stuff.
lobass 62.5 hz –> fat
hibass 250hz –> punch
low mid 500hz hollow
mid 1khz and himid 2kz presence and snap
hi 4khz metallic and brittleness
These were made from about 1981 to 1985, Fender bought SUNN.