I have an audio set up with amplifier etc tucked behind a wall mounted TV with ceiling speakers. I have a subwoofer that accepts only low level / line level input. My plan was to pass the line level signal over 15meter of CAT6 across to where the sub is located. This does work but there is too much hum. I would like tap of the high level output off the amp and pass it over the CAT6 cable to the sub and covert it to line level at that point before sending it to the RCA inputs on the sub. I have tried using a commercial line level converter and it was the most useless thing I have ever had the misfortune to purchase and I am not prepared to roll the dice on these any more.
I understand and please correct me if I am wrong that all I really need is a resistor in series with the signal and another one between signal and ground and put the whole thing in a shielded box.
My question is if this the case what values of resisters should I use and if this is the best way forward? The sub incase its relevant is a 12inch sealed Dali concept sub and the converted signal will go into the left and right RCA inputs.
I understand and please correct me if I am wrong that all I really need is a resistor in series with the signal and another one between signal and ground and put the whole thing in a shielded box.
My question is if this the case what values of resisters should I use and if this is the best way forward? The sub incase its relevant is a 12inch sealed Dali concept sub and the converted signal will go into the left and right RCA inputs.
Why not use shielded audio cables instead of CAT6? [BTW is this a balanced signal?]
Plausible resistor values require knowing the amp power and speaker impedance, so that the high level voltage can be determined and resistor power dissipation chosen appropriately.
Plausible resistor values require knowing the amp power and speaker impedance, so that the high level voltage can be determined and resistor power dissipation chosen appropriately.
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