I have used an RS cable for years, it rated second to Litzs cable (practicaly solid gold) and came second but only costs about .98P a meter for interconnctions and speakers.
Cleaning the drive belt helps (washing up liquid) and pully wheels so it wont slip on finger grease.
I re-wired my speakers and got a better sound, you spend so much on speaker cable then when you look in side the cabinet you have simple bell wire.
I had a round system deck, bugger for the 45 to 33 change, liked it. My mate had A Dias turntable that was cool.
The Quads sound great, I have LS35A at home but a special custom made pair with special boxes (ugg!!!! will go into detail one day).
The amp can take 2 pairs of speakers so I have the left - right then the other connected to the + terminals of that out put.
Grundig not heard that name for 40 years    lol.
It actually remixes the records. Motown was recorded on a 3 system tape and speakers studio so these sound a lot  better.
Oops this should be in your box, sorry mods.
If its mono its a mono recording( mixed left right into one line ) but this adds to the sounds third dimension.
I have started listening with 3 speakers, left right and the middle wired to both positives of the amp. This gives you some strange out of sink stuff. The best up to now has been the topics hey girl from the Kent cd, the voice nd harmonies stand out something else.
Hi Neckender, the disc is cut then copied in a reverse copper plating process to create the stamper, so the size or width of the play area is defined into its fixed size then.