I'm thinking to experiment with (stereo) cardioid subs:
- Pair of 15" drivers
- One at each end of a short 15"-dia tube, both outward-facing
- Delay the rear driver, by the length of the tube.
Maybe this needs two chambers, back-to-back, instead of a single chamber coupling both drivers. But the whole front-back length should be less than 18" to maintain cardioid pattern to a few hundred Hz. So the enclosed volume is really small.
I don't have much knowledge about how to model this sort of thing, so thinking I should just build it and see what happens. For the cost of an afternoon cutting up tubing...
Before I start, does anyone have experience with this sort of build, or other cardioid subs at home? Do they "work" in a smallish room?
- Pair of 15" drivers
- One at each end of a short 15"-dia tube, both outward-facing
- Delay the rear driver, by the length of the tube.
Maybe this needs two chambers, back-to-back, instead of a single chamber coupling both drivers. But the whole front-back length should be less than 18" to maintain cardioid pattern to a few hundred Hz. So the enclosed volume is really small.
I don't have much knowledge about how to model this sort of thing, so thinking I should just build it and see what happens. For the cost of an afternoon cutting up tubing...
Before I start, does anyone have experience with this sort of build, or other cardioid subs at home? Do they "work" in a smallish room?