This beautiful, mid 1970's vintage Sony STR 7055 receiver was acquired yesterday. The STR 7055 was the second highest top of the line in Sony's receiver, bettered by the STR 7065 at that time.
This unit is in mint condition for being 40 years old and needed little cleaning to make it shine. The fuse type bulbs for the face plate need to be replaced and that is about it. While it is opened up I have cleaned out the pots and switches along with the decades of dust.
Vintageknob.org has a more info on the history of this receiver along with all the specs.
From what I have read the unit is conservatively rated at 35WPC, 45WPC at 1K hertz into 8 ohms and 55WPC at 4 ohms with dynamic power of 200 watts at 4 ohms.
I got a chance to listen to this unit for a brief period of time last night and this unit sounds phenomenal. Further searching the interweb, some have compared this model to early Marantz receivers and Sansui amps. There was even some postings that Sony had their eyes set on MacIntosh amps when building this unit.
The sound is wonderful, full and warm like all units that you would expect from this era. I believe this Sony will be in use for a long time in the sound room.
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