Hi, I would like to ask for your advice.
I have two vintage systems, and what can I do to make them modern.
System 1
Marantz sr4300 6.1
Marantz CD53
System 2
Onkyo tx-ds575x 5.1
Onkyo 7211 CD
System 3
Aiyima 07 with std power adapter
I've already made some steps for the future.
The whole...