Do materials alter frequencies and speed?

In fact, there IS a very simple cable wire experiment. Take an appropriate length of enameled pure copper wire (~16g), cut into four identical pieces, scrape off enamel at the 8 ends, and use that wire to connect amp->spkrs. There should be a perceptible sonic difference if you're now using multistrand wire. You can even connect these wires in the direction they come off the spool, or cross, or whatever floats one's boat:)!

Gregm: No need for someone such as Rsbeck to go through all of that. I've offered multitudes of times to let him borrow some cables with me covering transportation charges round trip. Sean
>

What is the resonant frequency of earwax?
I'm going to connect my turntable to my cochlear imlants and skip the rest of the system.

What is the resonant frequency of earwax

:>)Dunno, but there's a pole s/where around 15kHz if I remember correctly. With your "direct-line" method, maybe we can dispense with the riaa correction altogether...

When the Audioligist fitted my wife for hearing aids, the first thing she did was to measure the acoustic characteristics of the ear canal. This was factored in to the algorithm programmed into the devices.