That SR was the biggest amp disappointment of my life. I retubed and redid the preamp tubes also but the amp just never sounded like a great SR should. My first SR was incredible. I sold it cause I couldn't deal with the 4X10 combo format. And then I got the head/cab idea and bought the chassis you see in the pic. That headshell is from a Bandmaster Reverb - the only Fender headshell that fits an SR. Note - Bandmaster Reverb - not a Bandmaster. ps: That '68 goldtop was an incredible guitar.