Your current cable will not properly work with a stereo receiver. Your current A/V receiver is already summing the bass information before sending it out of the LFE jack. If you use your current cable on the new receiver, you will only get 1/2 of the bass information. On most recordings it will...
What format is your music in? If it is compressed, what is the bit rate? I ask because the better you components, the worse compressed music will sound. Better equipment allows you to hear everything including compression artifacts. Since compressed music loses dynamic range, it might not be a...