Brief back story.
Our band own and run our own PA. HK line array system, upto 8 bass units and 8 top units. They sound great, really portable and a small foot print. We've had this for about 10 years and done many, many gigs with them. Both ourselves and other bands at gigs. Myself and the drummer are both experienced sound engineers.
However, we do occasionally get a lot of bottom end flare and can sound a bit wooly/undefined in the bass frequency.
Of course it's very venue dependant, but my question to the collective is, does anyone use rubber feet/stand/spikes to de-couple the bass units from the floor, much the same as is used in hifi? This would seem to make sense, but I've never known it for PAs. The best sound we had recently was when we sat them in the little trollies we use for transportation.
Anyone use or tried them?