perhaps get some of these dampening feet or similar - i had them recommended by one of the noise/acoustics folks at work (environmental consultancy), who also mentioned making sure the machine is on a decent solid floor and as level as can be make a difference too.
perhaps get some of these dampening feet or similar - i had them recommended by one of the noise/acoustics folks at work (environmental consultancy), who also mentioned making sure the machine is on a decent solid floor and as level as can be make a difference too.