The Sonaro is a 40 watt amp that uses a pair of EL34 output tubes and the 200S is a 60 watt amp that uses a pair of KT88/6550 output tubes. Other than that they are pretty similar.
Use the search function on this site to dig around, you will find more info about both amps.
I had Sonaro, which was 80W with 2xKT88 and solid state rectifier... what is probably reflected in Sunn catalog on this forum.
Yeah, the Sonaro hung around for a minute after the switch to all SS rectifiers and Sunn had dropped the 40 watt amps. I saw the '69 in the OP and assumed that was the year of the
Sonaro in question, but re-reading the OP I see that may not be the case. If it IS a SS rectified Sonaro the amp is actually a bit
more powerful than the '69 200S.
However sledz, if you had a later SS rectified Sonaro, it would have come OEM with 6550's, not KT88's...
Another interesting phenomenon among Sonaros is the mention by people who have a stand alone 6550 Sonaro
head rather than the combo amp that all of the literature shows as the only"Sonaro" ever available.
Most of us are aware that anomalies abound among Sunn amps over the years, but the stand alone, non-combo Sonaro is a head scratcher for me. Why would they build such an item?
The 200S and Sorado were already identical amplifiers, being different only in nomenclature, the speaker cabinet, and the price point; the concept of yet
another identical stand alone amplifier unit with a 3rd nomenclature seems a bit odd, even for Sunn.
Does anyone know what proprietary speaker cab came paired with the Sonaro stand alone amplifier unit?