· Super Moderator
I use several Ch Plus DA-550BID amps to distribute cable and modulated signal throughout the house- I use a low pass filter on the cable feed so the modulators work. Trouble is, I cannot get the cable modem to work through the amp (it is bi-directional): I suspect the low pass filter is the culprit. I can use a splitter at the cable feed and the modem works OK, but then I am down 3.5db to feed my amps, and I can see the difference. any ideas?