Different drivers in the same box

bdef

Member
2006-10-25 7:43 am
Hello all.

I'm building a slim speaker and for that purpose I'm using two small SB Satori drivers. To get more bass I bought a couple of passive radiators, and it pushed the limit down to around 40-50Hz.

Naturally I want deeper bass and my guess is that the Satori's can't drive the passive radiators deep enough, as they have a Fs of 41 Hz and Sd of 70 cm2. Therefore I'm looking at adding SB16PFC25 to the box, as they have a Fs of 35Hz and Sd at 124 cm2, even though it's not that much wider.

My question is then (as I love the sound of the Satori) if it's useful (naturally it's possible) to use them together in same box, together with the Passive Radiator, if I cut the SB16PFC at 200-300 Hz?

I can't see a way to simulate it, so I'm only asking for your guess on it's effect and will it destroy the sound on the smaller Satori?

5″ SATORI MW13P-4 / Paper – Sbacoustics
6″ SB16PFC25-4 / Paper – Sbacoustics
 

bdef

Member
2006-10-25 7:43 am
It will decrease the main volume though.

What do you mean?
According to my simulations the small Satori's will work best in around 12L cabinet, while the bigger SB16 requires 30L, while going around 10-15 Hz lower (depending on F10 or F3).

If I put them all together (to get more moving membrane area behind the passive radiators) will it then require 30L+12L or more or less? Will the presence of the smaller Satori move the F3 up, compared with a cabinet with only the SB16?