I'd add some acoustic treatment. Panels on either side and on the wall behind you should make a good improvement. For example three or four 244 or Monster Traps from GIK Acoustics (they will also give you free advice if you want).
Some Iso-acoustics Iso-stands or Iso Pucks to put the speakers on would reduce a lot of the vibration travelling down into the desk.
After that you could also consider room correction EQ (e.g Sonarworks Sound ID Reference etc), but best to use that last IMO.
I'd add some acoustic treatment. Panels on either side and on the wall behind you should make a good improvement. For example three or four 244 or Monster Traps from GIK Acoustics (they will also give you free advice if you want).
Some Iso-acoustics Iso-stands or Iso Pucks to put the speakers on would reduce a lot of the vibration travelling down into the desk.
After that you could also consider room correction EQ (e.g Sonarworks Sound ID Reference etc), but best to use that last IMO.