I own a Sansui G4500 receiver that I bought in the mid-1970s. Aside from one
repair in the mid-80s, it has worked perfectly.

Until recently, I've used 30-plus year old speaker wire to connect two newer
Bose bookshelf speakers, as well as standard, in-the-box wiring for DVD, CD,
phono and PC sound connections. This involves having cables running from the
AUX and attaching/unattaching other cable interconnects as needed. I tried
using a Radio Shack switch box, but would get hum. Suspect the components
inside Radio Shack box are cheap.

Recently I tried some Monster wire for the speakers and the components and
noticed an immediate difference; sound was richer, clearer, sharper. I could
hear sound on the DVDs that I could not hear before, and previously washed
out dialog was crisp. (I know this sounds like a plug, but it isn't. I was
honestly thinking of buying a new amp but was so pleased with the results of
the cable upgrade that I realize I'm fine again.) So cables do matter.

I'm wondering how far I can push sound clarity. Will it matter if I upgrade
to the Monster Interlink¨ 400 versus the 100? At what point is the price
performance ratio not worth it?