yamaha c70 preamp

'twas a sad day when I recently put almost my entire vintage collection up for sale. All that remains is a Hitachi turntable, Kenwood KR-9600 receiver, Luxman R-117 receiver, and Yamaha M70, C70, & T70 separates system. The Lux will stay behind as my power amp along with the Hitachi turntable...

Just set up my first stereo rack. Been enjoying it but if for some reason I want to switch to Bluetooth and connect with my phone the receiver will shut off as if to protect it. Ive searched the threads but am new to this so apologies if I missed this and am causing a redundancy. A common issue...

So, I sold by Bozak Concert Grands. Sold my Altecs. Sold almost everything. I came across a pair of German made Quart 650S speakers. I posted on here about them somewhere. They have a hot hi-end. Ran it first through a good old Yamaha receiver. Then decided to try my Kenwood KA-7100...