Well I am very pleased for you Peter, I do have a reason for this happiness, it proves I'm not delusional about my own DP80 sounding fantastic, but in a different way. The Stax UA-70 12" arm is very special and the Shure ultra 500 in Martin Bastin body into a built in phono stage of the Sony receiver is magic. Having not heard your turntable of many years I couldn't comment on its ability but would have been surprised had you not preferred the Denon.
There is certainly nothing wrong with an SP10, I have heard one with an SPU on and it was very good but the DP80 seems to be dismissed by many, probably due to hearing the lesser denon tables that look similar but are a world away from the DP80's engineering.
Bakoon 13r Denon DP80 Stax UA-70 Shure Ultra 500 in a Martin Bastin body with jico stylus, project ds2 digital Rullit aero 8 field coils in tqwt speakers
Office system, DIY CSS fullrange speakers with aurum cantus G2 ribbons yulong dac Sony STR6055 receiver Jvc QL-A51 direct drive turntable, Leema sub. JVC Z4S cart is in the house
Garage system another Sony receiver, cassette deck
System components are subject to change without warning and at the discretion of the owner.