Spectral Amp and Pre-Amp Manuals?

Does anyone have manuals for the Spectral DMC-20 pre-amp and/or the DMA-180 (series 1) amplifier that they would either sell, photocopy, or scan and send as an e-mail attachment? I would be more than happy to reimburse you for any costs incurred; I need to learn more about this equipment than I can find on the net. Any help would be much appreciated!

Also, Does anyone know what the little silver toggle switch, located about an inch to the right of the Spectral DMC-20's IEC inlet on the rear of the power supply, does? Does it switch between 120/240 volts, or...? I can't wait to see if anyone can supply me with a copy of the manual to find out about this.

Thanks, Mark