B&W 603 foam plugs

[CPALIU]

The speakers come with a pair of foam plugs, one smaller than the other. Are they both meant to be used for the port in the rear of the speaker or one is also for the port in the front? Does it matter if the smaller or larger one goes in the front or rear?

[Sim reality]

The smaller pair is for the rear and the larger pair for the front.

[jim777]

Anyway you probably will not want to use them (unless you also get a sub).

[BTB]

Anyway you probably will not want to use them (unless you also get a sub).

Or unless the rear of the speaker is too close to the wall behind... they are supposed to modify low frequency output to allow smoother "in room" response... if you feel they are required to tone down boomy, over thick bass. CPALIU, a good place to start placing those 603's would be (use tape measure if needed) about 800mm - 1m, measured from the baffle (front of speaker) to the rear wall, and more if your space allows, with a slight toe in towards the listening position. The 603's are best suited to a "free space" position, so try to keep them free of corners as well if possible as this will min. wall reflections which will negatively impact the quality of sound you hear.