What should be a good enough F3/F6/F10 at 1 meter (circa 40") target in a lossy room for the low end of a 3 ways please (10" to 12" bass driver

Sounds good.

basically find a 10" or 12"
you like.
Tap the QB3 or BB4
alignment.

Whatever squiggly graph makes you happy.
Build it.
probably 30 different magical opinions
about the same old squiggly lines.

If you like big boxes, build the big one.
And if you like small boxes.
Build the big one anyways.

I listen to Jazz and Movie soundtracks
often. So basically anything good is older
recordings. Id be fine with a 2 or 3 way
with a 8" or 10"

I dont care if it is 30 or 100 liters.
Whatever the heck the speaker wants
 
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Disabled Account
Joined 2019
Yup, more and more what I am understanding.

I bougth 12PR320. But the Vas on the datasheet changed in 2022 from 97 liters to 113 lliters. And suddenly cabinets became (in the sim.) much bigger than expected for not a so great f6 (40 hz) and f3 (55/60 hz) whatever QB3 or BB4. Good enough seems 85 liters with this drivers, hence my topic !

I belive I will need to change it for the 12RS340 !
 
Eventually a speaker is what it is.

Your just trying to figure out
How big the box should be.
Which is friendly to the compliance.
With high sensitivity speakers that is basically
big. Then a point where going larger does nothing.

Then the tuning will either be the same
as Fs or few Hz below it.
No other magic to it.

Some songs you bump the bass knob
a few dB, some songs you turn it down.

7mm of linear travel is rather generous.
So if you bump the bass knob.
it wont be a fart. like old 3mm drivers did.

You just boost/ cut according to song playing
and enjoy life.
 
Disabled Account
Joined 2019
If you ask me Fb should be always few hertz above the Fs, because indeed no miracles. I am more confident with SC4. While Qb3 is often attractive with those high Fs bass drivers.

Bumer, I reallly have to make some efforts first to measure the room then spend for a plate amp. I hoped doing all of this from the first try (I'm a dreamer).