I just bought a 2 channel amp in order to bi-amp speakers that I will be getting soon. I have to connect it into my video in, audio out plugs for it to work since my reciever does not have any amp out jacks on the back. I tested this with my current speakers. It works but I cant control the volume on the speaker that is being run by the amp. the amp itself has no volume gain. Is there another way to hook it up to the receiver or another way to control the volume? or will it matter when I bi-amp the new speakeres? Please let me know.