How to remove Logitech Z623 a grill + subwoofer excursion bass test

How to remove Logitech Z623 a grill, take off subwoofer excursion dB SPL bass test. To take the grill off your Logitech Z623, Logitech Z3e or Logitech x-230, X-530, Z-2300 or Z-5500 all this speakers grill mounted the same way. The Logitech 2.1 active PC audio stereo system is amazing loud bass, shake all your room with big bass from subwoofer driver. Logitech Z623 specifications: - 2.1 stereo active system setup - RMS Output Power 200 W(SW: 130w, FS: 35 each) - Frequency response 35Hz-20kHz - Subwoofer