Hello, you can check this site:
http://www.cableboxfilters.com
You can find the best filter and these are newly designed and is a super mini size high pass filters. They have excellent specifications, dimensions of only 13mm x 40.5mm and a weight of only 18g. These filters are best suitable for use in many communications applications, such as CATV, Cable Internet and other RF systems. Hope that this info can help your problem.
With too many connections as you mentioned, you must install a High Pass Filter. These are newly designed and is a super mini size high pass filters. They have excellent specifications, dimensions of only 13mm x 40.5mm and a weight of only 18g. These filters are best suitable for use in many communications applications, such as CATV, Cable Internet and other RF systems.