[jdandy]

JustKyle.......Welcome to Audio Aficionado.

I remember the JBL SA-660. A friend who lived in Berkeley, California owned one back in 1971 and drove his JBL L-100's with it. It was manufactured in the late 1960's as a replacement to the JBL SA-600. The JBL SA-600 was rated at 40 watts per channel. The JBL SA-660 is a 60 watt per channel integrated amplifier. JBL also manufactured a receiver during this same time period but I can't recall the model number. These JBL amplifiers were very well made with excellent specification for that era, particularly in signal to noise ratios. The SA-660 can drive 4Ω to 16Ω loads. I don't remember the original retail price of the SA-660 but I believe it was less than $500.00.

If I were you, I would have the power supply capacitors and any coupling capacitors replace before trying to use the SA-660 integrated amplifier. It is approaching 50 years old. The caps are certainly dried out and are not operating in their original value or may even be shorted. Take it to a good electronic tech for service. You will be impressed with its performance once properly restored. The SA-660 easily drove my friend's JBL L-100's to room filling volume and sounded great. I wouldn't mind owning a JBL SA-660 myself.