I don't know where to get them, but my local stereo shop lent me a y-connector that was a gold plated solid block y-connector (no wires involved). It worked very well for doing an A-B comparison when auditioning interconnects. It allowed me to run two different cables from my CD player into my preamp, and then I could listen to each cable by switching the inputs at the preamp.
Someone else here can probably recommend a source.
jd
Someone else here can probably recommend a source.
jd