Monitor Audio Creator Series W2L In-Wall Large Speaker Color:White Retailer coverage says the FS-600

Retailer coverage says the FS-600 S3 uses a top-plate screw system and that compatible 600 Series S3 speakers can be secured using the included hardware and the threaded inserts under the loudspeaker

Teflon Dielectric Insulation

Medium Tier 2 in-wall speaker with twin 5-inch RST II bass drivers

making the AT-LP60XBT ideal for new vinyl listeners or relaxed everyday use

This is not a pick and mix product

Monitor Audio Creator Series W2L In-Wall Large Speaker Color:White Retailer coverage says the FS-600Monitor Audio W2L In Wall Speaker Large Tier 2 in wall speaker with four 5 inch RST II bass drivers, a 3 inch RST II midrange, a 1 inch C CAM tweeter, and a sealed three way design for serious architectural wall based sound. The W2L sits in a very useful part of the Creator Series range. It is clearly aimed at rooms where a smaller in wall speaker would feel underdone, but where a clean architectural finish still matters. It is a three way design