I believe the 808 was the best Sony made. Not sure if it is the mst powerful though. The TA-F707ES is virtually the same inside but lacks the better speaker terminal and dampening material. Check this link out for info http://www.thevintageknob.org/SONY/sonyes/TAF707808ES/TAF707808ES.html
I have owned two 707s and think they are super amps for the $used. I modified both of them with better internal wiring and binding posts. Although it is now in my closet, you can see my mods by clicking on my system.
I have owned two 707s and think they are super amps for the $used. I modified both of them with better internal wiring and binding posts. Although it is now in my closet, you can see my mods by clicking on my system.