I used to own a auto repair shop, we also did car stereo installs. I still have inventory that has been sitting for some time, finally decided to build some computer desktop speakers in the last week with a pair of 5 1/4" component speakers. Couldn't help but think they resemble birdhouses as i was putting them together. Anyway,.....my question is....Nominal impedance of speakers is 4 ohms, i am currently running them from my computer sound card which has optical output and up to 7.1 capability, to a used Denon AVR-1800 digital receiver with optical inputs. 5.1 capability. Receiver speaker output impedance is rated for between 6 and 16 ohms. If i don't crank up my volume too much do i still have a problem with too low impedance? Will i burn up my $60 receiver? I also have the stuff to hook up multi-channel car audio amps which will of course be ok with 4 ohm speakers. Could i simply add a 2 ohm resistor inline and keep using my home audio receiver?
Anyway, here are the pics:





I stained them, painted them 5 different colors, (red mahogany stain / brown speckled paint / then bluish sparkle / to solid chrome / to black laquer which bubbled up from all the layers below. so i then stripped off all layers and settled on this colored / oiled scheme.
Sides and back are 1/2" oak veneer plywood, front is solid oak, top and bottom solid cherry. They sound way better than my old 2.1 Labtec speakers i have been using. Gonna make a baby sub to go with my computer audio setup soon.