@lovepianos,
I went to the B&W 802D’s owner’s manual, see page 3 and you already have two types of telescoping types of speaker lifts to get the subs up off the floor. And they seem to be of very high quality with plenty of length, way more than normal screw in spikes/footers.
And it appears you also have the very unusual half sphere option of high quality, extra long extensioned footers, along with the spike option too! I think you’re good to go with what you already have! Plus the fact they were made (engineered) specifically for that particular sub. Seems like a win to me.
I’d say just extend the half sphered footers option down, as long as needed, to tune and or voice them to your liking and you’re done. The (basic) idea is to get the subs up off the floor. I hope this helps.
I went to the B&W 802D’s owner’s manual, see page 3 and you already have two types of telescoping types of speaker lifts to get the subs up off the floor. And they seem to be of very high quality with plenty of length, way more than normal screw in spikes/footers.
And it appears you also have the very unusual half sphere option of high quality, extra long extensioned footers, along with the spike option too! I think you’re good to go with what you already have! Plus the fact they were made (engineered) specifically for that particular sub. Seems like a win to me.
I’d say just extend the half sphered footers option down, as long as needed, to tune and or voice them to your liking and you’re done. The (basic) idea is to get the subs up off the floor. I hope this helps.