Technics RS1500/1520/1700 Tape Path Modification Kit
For several years we at Bottlehead have been modifying the Technics RS series tape decks to bring their sound closer to that of the big studio decks. Here is a link to the Tape Project web site that explains what we do.
What we have found over the years is that shipping tape decks can be quite expensive. And so we have come up with a kit that allows one to perform about 80% of the Bottlehead modifications at home or have them done in the shop of your local tape deck savvy technician.