In message , Greg
writes
Get some M20AD from a company called custom audio designs
(www.customaudiodesignns.co.uk). It's a kind of foam mat that you
stick on the wall (15kg/sqm). I got some last week and it did the
trick brilliantly.

only one n in designs though

btw, why would they have "This product and method is not suitable for
loud music and cinema noise coming through a wall." on
http://www.customaudiodesigns.co.uk/soundproofing/rubbermat.htm
though?

--
dave @ stejonda