I often read how filling speaker stands affects the sound quality , I realise you are adding mass, and that might change the resonant frequency of the cabinet if the speaker is rigidly coupled , I wouldn't have thought that would make an audible difference ?
If I take in some 'grounding' boxes I might crack them open and use the filler to experiment!
Keith
If I take in some 'grounding' boxes I might crack them open and use the filler to experiment!
Keith