Different cones do sound different, assuming the resolution of a particular rig is good enough to reveal it.
Different placement of same cones also sounds different.
Different shelves sound different & the suspension in use also changes sonic charactaristics.
Glass shelving or glass doors on equipment cabinets typically sounds degraded.
If you only "think you hear a difference" then it's subtle at best, perhaps only psychoacoustic. If no changes are perceived then the tweak doesn't work for YOUR system; doesn't mean it won't work in another rig.
Sub-bass control issues are different from mid & lower bass; muddying of sub-bass in a home theater rig may even sound desirable to the uninformed consumer.
Different placement of same cones also sounds different.
Different shelves sound different & the suspension in use also changes sonic charactaristics.
Glass shelving or glass doors on equipment cabinets typically sounds degraded.
If you only "think you hear a difference" then it's subtle at best, perhaps only psychoacoustic. If no changes are perceived then the tweak doesn't work for YOUR system; doesn't mean it won't work in another rig.
Sub-bass control issues are different from mid & lower bass; muddying of sub-bass in a home theater rig may even sound desirable to the uninformed consumer.