Stopping sound from reaching neighbors

[BTPRO]

So, I'm moving tomorrow into a small apartment in Manhattan. I have one wall that is shared with my neighbors, which unfortunately seems to be pretty thin. Thankfully it's the only wall (including the floor and ceiling) that I have to worry about sound passing through. My studio is a small mixing studio. I never reach levels beyond 85 dB (usually sit between 75-80 at the loudest). Because of the huge amount of money I had to put down for the apartment, my budget is tight for fixing the noise abatement issue. I was thinking about looking at some drum shields as a possible solution. Any suggestions/advice/help would be greatly appreciated. I don't have the budget to properly treat the room right now, my first and main concern is keeping noise from driving my neighbors crazy. Thank you so much,
BT

[gullfo]

what type of structure borne transfer are you getting through the floor, ceiling, and side walls? (not including the wall facing the neighbor) - if the answer is none, then adding another interior wall with a slight gap between them, may be enough to get the isolation you need without breaking the bank. however - its likely you're sharing walls and floors as well as that one wall - test by tapping with metal and rubber mallets to see if that is the case. do some sound level measurements with your system cranking 90db or so. see how much is actually making it to your neighbors place - also consider windows and adjacent buildings as flanking paths. lastly any shared ducting or pipes, unsealed electrical boxes etc could be culprits.