Stehno,
You're indeed correct re keeping the digital line as far removed from the low-level analog one as possible. If you're system is still plagued by AC noise I'd try installing a dedicated line on the CLEANER phase of the house wiring, if possible, before going to a conditioner. This may entail rewiring a couple of the "dirtier" cables to the opposite phase, such as a refrigerator, fluorescent lights, motors, etc. I have an antique smal hand-mounted massager that throws more RF than a Scud missile!
Have fun.
You're indeed correct re keeping the digital line as far removed from the low-level analog one as possible. If you're system is still plagued by AC noise I'd try installing a dedicated line on the CLEANER phase of the house wiring, if possible, before going to a conditioner. This may entail rewiring a couple of the "dirtier" cables to the opposite phase, such as a refrigerator, fluorescent lights, motors, etc. I have an antique smal hand-mounted massager that throws more RF than a Scud missile!
Have fun.