I have owned this AIWA DP-770 CD player for quite a few years it originally belonged to my parents-in-law and we used it occasionally in second system.
Uses Sony CX20017 16 Bit R2R DAC chip. Great sound. Employs Sony transport and laser.
For info see Aiwa-DX-770
It works fine and sounds reasonably good, would be ideal in a 2nd system. It has a few scratches to the top.
Only asking £40 plus P&P, UPS £6.60 (weighs 3.4kg unpacked)
Will send by UPS who look after parcels better IMO.