You need to isolate one of the items one of a few different ways. Otherwise that speaker is going to send vibration through the surface, which your table is going to pick up, the stylus reads and sends back through (you guessed it) the speaker.
Get yourself a 1/4” slab of rubber to stick under the speaker. Trim it to fit the footprint of your speaker. If you have any left, ou can put some under the table or the feet of the table (just make sure you keep the table level). Also make sure the front edge of the speakers is further forward than the TT.
IKEA - APTITLIG, Butcher block, bamboo, The chopping board collects food juice in the milled groove and prevents it from spilling on to your countertop. You can easily turn the chopping board and use both sides when you prepare food, because it has easy-to-grip slanted edges.