Would this be a good combo for a small subwoofer.
Peerless 830452 10 inch sub and this
10" passive radiator for Sonus Faber speaker.
https://www.jktukku.fi/product/4177/tymphany-10-bassoelementti
Guessing this is the driver used in older Gravis B1, the Gravis B1, has two passive radiators, Sadly I only have access to 1 passive radiator
Peerless 830452 10 inch sub and this
10" passive radiator for Sonus Faber speaker.
https://www.jktukku.fi/product/4177/tymphany-10-bassoelementti
Guessing this is the driver used in older Gravis B1, the Gravis B1, has two passive radiators, Sadly I only have access to 1 passive radiator
Since 'we' need a PR with ~ > 1.75x the driver's Sd, hence the two, it likely won't perform well (enough).
Here is a link to the old Peerless application notes for the 830452. It only used 1-10" pr.
https://www.yumpu.com/en/document/v...application-note-for-peerless-xls-10-tymphany
https://www.yumpu.com/en/document/v...application-note-for-peerless-xls-10-tymphany
Don't see any excursion specs for that Tymphany DK 10" Woofer P831481 passive radiator, but it may be the same as the Peerless 830481, in which case it would be good.
The Peerless 830452 driver spec sheet says it has 12.5mm Xmax and 349.7cm2 Sd.
Generally one wants around double the displacement (Xmax times Sd) from the passive radiator(s) as the driver.
The Peerless 830481 passive radiator "Xmax peak" is 22, Sd 333 cm2, about 13% less than double the displacement of the Peerless 830452 driver, so would be "good enough" to use a single.
Art