Difference of SA-706 vs SA-7600 vs SA-7600 II ?

[VinJunkie]

Dear all AK memebers, I have came across a vintage Pioneer integrated amp - Pioneer SA-7600. I tried to find info online but not much results indeed.

I can only found the following :
SA-706 https://www.hifiengine.com/manual_library/pioneer/sa-706.shtml
SA-7600 II https://audio-database.com/PIONEER-EXCLUSIVE/amp/sa-7600ii-e.html

Does anyone can share your knowledge about the difference between Pioneer SA-7600 VS Pioneer SA-706 ?
Pioneer SA-7600 - meter is white color unknow wpc
Pioneer SA-706 - meter is black color, 60 wpc

Does anyone can share your knowledge about the difference between Pioneer SA-7600 VS Pioneer SA-7600 II ?
Pioneer SA-7600 - unknow wpc
Pioneer SA-7600 II - 60 wpc

Does anyone has experience to know the difference regarding sound-wise ? Thank you very much for any info in advance, much apprecaited.

 

[VinJunkie]

SA-7600 II

SA-706

 

[larryderouin]

https://audiokarma.org/forums/index.php?forums/pioneer-equipment-database.126/

Scroll down to the Equipment Database and click, then click on amplifiers and scroll down to your models.
Both the 7600 and 7600II are 40 watt built the same time as the 706. 1978-79 model years. Different markets got different versions of the models.

 

[VinJunkie]

https://audiokarma.org/forums/index.php?forums/pioneer-equipment-database.126/

Scroll down to the Equipment Database and click, then click on amplifiers and scroll down to your models.
Both the 7600 and 7600II are 40 watt built the same time as the 706. 1978-79 model years. Different markets got different versions of the models.

Thank you LarryDerouin, that's a very complete database, very informative, much appreciated !