The subs are already in use as it happens ,most people on the D.I.Y
audio forum warned me against trying this but I had some reasonably large inductors to limit the upper frequencies and the 12" speakers were already mounted under the stairs so they are not in any sort of near field as regards the stereo image. So there you have it a pseudo bass bin made out of part of the cottage , and 2 ,little speakers hanging in the corner of the living room. NOT hifi by any stretch of the imagination but all the frequencies seem to be present, upper-mids maybe too present!! but its still retrieving more info from sources than anything Ive had before.If i ever get divorced I may even find out what Hi-Fi sounds like! HA HA