I read over this board a bit, and thought maybee someone at polk could shed some light on it, but how come although most of the signal people send to their amplifiers comes from a digital source, there is no such thing as a digital interconnect? There is in the home audio world(optical is digital i believe, although i dont understand why they decided on optical, as opposed to using wire like the rest of the world does to send a digital signal)
People spend so much money(especially in home audio) for quality audio(and video) interconnects, but since most everything(cd, dvd, and satelite radio, although not normal radio) is digital at the source, why isn't it sent digitally to the amplifiers to prevent signal loss?
If we can send 10mbit/s over 4 pairs of relatively cheap copper wire in a computer, using cards that cost $10 or less(after packaging, shipping, and profit for the retailers) surely the same could be done for audio? CD quality sound is arround 700kbit/s, (even a 96kHz 32bit signal is only 3mbit/s) and then you would have the guarantee that the signal getting to the amplifier is exactly the same as that coming from the CD(i think there would be plenty of bandwidth, and short enough latency to resend something with a bad CRC, theres enough bandwidth you could just send each piece of data multiple times so that the equipment doesn't actually have to talk to eachother, just one send, the other receive and check CRC's or whatnot)
Obviously its not incredibly simple, but it doesn't seem all that hard either.
Oh - I put this semi-ot because i know polk doesn't make receivers or interconnects, but i figured being part of the home/car audio world someone arround here might have some clues.