I have a nice old, JVC Model 4ME-4804. That's a quadraphonic 8-track player/amp.
For inputs it has:
phono (2 channels of RCA connectors)
(and a switch to select magnetic vs ceramic)
aux (4 channels of RCA connectors)
(front left and right, rear left and right)
For outputs it has:
rec out (4 channels of RCA connectors)
speaker (4 channels of RCA connectors, states 8-ohm minimum)
On the front, you select which function (which source) - phono, aux, or 8-track tape.
On the front it also has bass, treble, and volume control dials - as well as a joystick to shift your sound imaging between the 4 speakers.
I have a bunch of extra 8-ohm speakers - but they're all "modern" - with 3-way or 5-way binding posts. I usually use banana plugs for speakers. SO - what sort of connector/adapter do I buy so I can plug in a "modern" 8-ohm speaker into this ancient RCA speaker plug?
EDIT: So far all I've found is this:
It looks correct - but it's only 18 gauge. Was hoping for a better wire gauge. I see these exact same pictures (so I'm guessing the exact same product) on three different sites. Any other sellers of a similar product with thicker wires?