How many 6.5in driver equals one 8in driver

Size matters when you’re trying to move air.  I have 4 8 inch woofers in each of my Arendal 1723 towers.  Upgraded from the S model with 6.5 inch woofers.  I didn’t use a formula it just made a difference for music and movies. 

This post misses the biggest point in the argument of woofer size, and that’s the room. I had a speaker that sounded great in a 27’ dedicated room, but over powered my new 16’ room. My new speakers have multiple 6.5” woofers which provided almost all the clean bass I wanted, but adding a couple of Rel subs using an 8” driver with a 10” passive radiator provides the bass that I used to have in the larger room. If I would ever build another large dedicated room, my speaker would have many 6.5” woofers or a few 8” woofers with multiple rel subs, maybe even using Rels line array of subwoofers.

The two 6.75 woofers in my B&W 803 D3 in my room did not produce enough bass to sound satisfying. Adding a pair of JL Audio powered subs took care of that, delivering clean, quick, natural-sounding lower octaves that blend  seamlessly with the higher octaves. Careful integration with adjustments of X-over frequency, phase, polarity, and level yielded excellent results.

Submitted ’cuz the doors are left open around here, and yet another ’girth truth or dare’ expo... *L*

pi x ( .5 + 2.5 ) x 7.25 = 68.33 ; it’s the way the cone gets excited that makes a Walsh work its’ magic with a 6.5 basket.

The trick is to xover to a sub when the cone goes pistonic, bass requiring sheer

air movement to create those lower and naturally omni frequencies in nature.

Vertical alignment with a tweet based on the Infinity 'ice cream cone', a pair of which I used to own with the towers it lived atop.  Had it's moments, but still sounded 'restrained' to my earlier ears...

It does require a magnet structure matched to a really robust  voice coil that

can shrug off heat....

But they’re out there. 👍

Quixotic perhaps, but beats windmills.

Reverb bathing.... 😏  Love it or leave it. ;)

Appropo for tomorrow.  Go hang with your neighbors and make some noise.

"How many 6.5in driver equals one 8in driver"

multi-diver (at one band, LF/MF/HF) speakers have a problem to sum different sound waves across frequencies without frequency, phase and linearity distortions. thus, it’s not possible to replace one good large driver with multiple drivers, and to have same SQ performance.