Sunn Solos II Power rating

[HRobert]

Does any one know the actual power ratings of the Sunn Solos II amp.  All I can find is a rating of 120W RMS, which I would guess is for an 8 ohm load.  Is there a higher rating for a 4 ohm load on this amp, or is the 120 W the rating into a 4 ohm load.

Rob

[CLD]

My '72 and '74 catalogs weren't much help but Sunn's SS amps generally were 4 ohm then (including the Studio Bass, Concert and Coliseums) so if I had to guess I'd go with the 4ohm rating for your Solos II.