I'm wanting to build a microsub with solid bass extension keeping the form factor as small as possible while getting near the 30hz range -3db.
Driver choice:
W5-1138SMF
Passive Radiator
Wavecor PR182BD02 7" Black Aluminum Cone Passive Radiator with 70g added mass
I'm modeling three sizes assuming 1/2" stock
8.5" cube (~6.91 l)
9" cube (~8.4 l)
9.5" cube (10.09 l)
F3
8.5" ~ 34.75hz
9" ~ 32hz
9.5" ~ 30hz
Knowing that I'll lose some volume I'm thinking the 9" or 9.5" cube is the smart choice.
Considering powering with Lepai LP210PA plate amp.
Do my winisd calculations look correct? Any better choices for a small form factor subwoofer for driver and passive radiator to get down near 30hz without chuffing?
I don't need to win an SPL competition, I have UXL-18's for handling the heavy work. I need something I can discreetly place in a room and garner WAF.
Anything I'm missing?
Driver choice:
W5-1138SMF
Passive Radiator
Wavecor PR182BD02 7" Black Aluminum Cone Passive Radiator with 70g added mass
I'm modeling three sizes assuming 1/2" stock
8.5" cube (~6.91 l)
9" cube (~8.4 l)
9.5" cube (10.09 l)
F3
8.5" ~ 34.75hz
9" ~ 32hz
9.5" ~ 30hz
Knowing that I'll lose some volume I'm thinking the 9" or 9.5" cube is the smart choice.
Considering powering with Lepai LP210PA plate amp.
Do my winisd calculations look correct? Any better choices for a small form factor subwoofer for driver and passive radiator to get down near 30hz without chuffing?
I don't need to win an SPL competition, I have UXL-18's for handling the heavy work. I need something I can discreetly place in a room and garner WAF.
Anything I'm missing?
Attachments
Ok, an update. I looked at cone excursion aim the 7L box seems like a better bet. Is there an easy way to calculate the volume of the driver and passive radiator within the box? I want to make sure I don’t undersize the cube.
I would say about 0,7 L for both the driver and passive radiator combined. I suppose you could offset that with the virtual increased chamber volume due to stuffing with dampening material.