What adhesive to attch felt pads on Acoustats?

I have a couple of pairs of Acoustats which have had felt pads on the rear of the speakers become dislodged..any ideas as to what glue or adhesive to use to glue back on?..
3M makes all manner of excellent spray adhesives for any applications and they are without exception excellent. Try this...

You need to call some suppliers and make sure you get audiophile grade glue and instructions on how to apply it. You will probably have to put the exact amount of glue on each speaker so the sound is properly balanced.