I'm designing a cost effective subwoofer for a great home theater experience and a good music experience as well. To that end, I've decided on A single 12" driver and a ported cabinet utilizing the SBB4 alignment to keep the bass response as tight as possible while still taking advantage of the extension provided by a ported cabinet.
I've been modeling different drivers and boxes in WinISD for days and I think I may have finally found a good combination. I've modeled the Tang Wang WQ-1858 driver in WinISD using the SBB4 alignment (grey line in screenshot) and the modeled frequency response looks pretty good. My only concern with this design is the box size. At 3.75 cu-ft before accounting got port, driver amp, hpf, etc, this thing is gonna be BIG. I don't have a ton of room in my home theater. So, I'm wondering what the effect of shrinking the box size will be. So I modeled a box size of 3.2 cu-ft (yellow line in the screenshot) and the frequency response still seems pretty good.
My question is: What else am I "giving up" by ignoring the SBB4 recommended box size? I understand I'm lowing some low end extension. But am I giving up anything else? I chose SBB4 to try and minimize the damage to transient response, so will this size constriction affect transient response in a negative way compared to the 3.75 cu-ft cabinet?
I've been modeling different drivers and boxes in WinISD for days and I think I may have finally found a good combination. I've modeled the Tang Wang WQ-1858 driver in WinISD using the SBB4 alignment (grey line in screenshot) and the modeled frequency response looks pretty good. My only concern with this design is the box size. At 3.75 cu-ft before accounting got port, driver amp, hpf, etc, this thing is gonna be BIG. I don't have a ton of room in my home theater. So, I'm wondering what the effect of shrinking the box size will be. So I modeled a box size of 3.2 cu-ft (yellow line in the screenshot) and the frequency response still seems pretty good.
My question is: What else am I "giving up" by ignoring the SBB4 recommended box size? I understand I'm lowing some low end extension. But am I giving up anything else? I chose SBB4 to try and minimize the damage to transient response, so will this size constriction affect transient response in a negative way compared to the 3.75 cu-ft cabinet?
