Hi, first post here. I hope this is an easy question to answer. I’m looking to add an unbalanced input, rca jack, to my amps. I have everything ready to be connected and installed but I thought this is probably the best time to add unbalanced input to the amps since they are all unconnected and easy to access. Its mainly to keep my options open but also because I have an old Integra Preamp and its HDMI board is a ticking time bomb and I’m lucky its still working. I have two Pascal amplifier modules S-Pro2 and U-Pro2S both with the Pascal input boards, and some Icepower 200ASC modules. The Icepower stuff has great instructions on how to add an unbalanced input and it seems very simple. However, on the Pascal amps, its not clear and I’m not confident to enough to try the same instructions from the Icepower manual and in fear I may screw something up. Any one know how to accomplish this?
Here is my desired Home Theater setup:
7.1 speakers
Integra DHC-80.3 Preamp
Pascal S-Pro2 for Front Mains
Pascal U-Pro2S for Side Surrounds
Icepower 200ASC amp for Center Channel
Icepower 200ASC amp for Subwoofer
Icepower 200ASC+200AC amp for Rear Surrounds
Here is my desired Home Theater setup:
7.1 speakers
Integra DHC-80.3 Preamp
Pascal S-Pro2 for Front Mains
Pascal U-Pro2S for Side Surrounds
Icepower 200ASC amp for Center Channel
Icepower 200ASC amp for Subwoofer
Icepower 200ASC+200AC amp for Rear Surrounds
If you don't need them to be at the same input level as with balanced, just connect the cold side (out of phase signal) to ground on the amp side, and use the ground and hot (in phase signal) as usual.
If you're unsure, you can also leave it floating rather than grounding it. That will work too, but just ends up distorting your signal as you're trying to cancel out noise on your hot signal that was picked up by the cold line as an antenna, not as a wire. So grounding it serves to make sure that no erroneous signals try and affect your hot signal.
I recommend you ground it after you've verified it works as you expect it to.
If you're unsure, you can also leave it floating rather than grounding it. That will work too, but just ends up distorting your signal as you're trying to cancel out noise on your hot signal that was picked up by the cold line as an antenna, not as a wire. So grounding it serves to make sure that no erroneous signals try and affect your hot signal.
I recommend you ground it after you've verified it works as you expect it to.