I downloaded a whole bunch of free sounds from somewhere, don't really remember where. I put them all on a web page Here.

Here is what is on the page.

Pink Noise - In phase

Pink Noise - Out of phase

Sirrus Tone - In phase

Sirrus Tone - Out of phase

White Noise

Sweep Left

Sweep Right

Cool effect from the end of the Aphex Twin song Windowlicker (looks awesome in Windowshade or Spectrolog visual modes)

The in and Out Of phase sounds are good if you want to see if you wired your speakers the correct way.

BTW Tony, RE: "fix it in hardware". That's hillarious, I was rolling.