Drum Room treatment on the cheap...

[yourhero]

Hi guys,

Long time listener, first time caller. I have a question of opinion on treating a 12ish x 14ish rectangular drum room with 9ft ceilings. walls 1 and 2 are interior finished drywall, while 3 and 4 are brick. The ceiling is suspended tile.

If I can only initially afford to do one thing to cut down some nasty reflections and be able to get some semblance of decent usable room mic sound, should I get bass traps in the corners first or soundproofing panels on the walls?

Thanks for your time!
Travis