Sony TA-N9000ES 5-Channel Power Amplifier Polk Audio PSW-650 Subwoofer

I bought the following equipment in the early 2000's and would like to sell them in the San Francisco Bay Area. Does anyone in the area have interest in purchasing or know of a place where I can sell them?  Thank you in advance!

(1) Sony TA-N9000ES 5-Channel Power Amplifier

(2) Polk Audio PSW-650 Subwoofer