I have a MTI 1 to 4 AV distribution amplifier *model #UVA4C). It's rated supports HD & SD video signal & it can also handle analog & digital audio (coax) distribution. I do not have the power supply but it can be purchased for $15 directly from MTI. Retail value is $215 and I'm asking $110 shipped. Please contact me at [email protected] if you are interested.