why not get a REW set-up and get a baseline and some sense of possible solutions . .
You can buy a ready to use 18" sub from Newark. com for $76.62I currently have a single PSA TV36-iPal which sounds incredible. My frequency response is pretty smooth at the MLP, especially considering I only have 1 sub. I would like to work to smooth the response out further, especially for the secondary seating. My issue is that another TV36-iPal isn't going to fit anywhere that measures well.
What sort of DIY options might I have using either a 18DS115 or 15DS115 in a more compact package tuned similarly to the TV36 (13.5 hz). A form factor similar to the new JTR 2400XS would be great.
Thanks, but I'm not necessarily looking to go for the cheapest option. I'm ok with the cost of the B&C drivers but unsure of how to start designing a cabinet.You can buy a ready to use 18" sub from Newark. com for $76.62
1000 watt peak power and 91Db sens
Here is a measurement from one of the secondary seating positions.why not get a REW set-up and get a baseline and some sense of possible solutions . .
The smaller, the better the placement options. Of course I wouldn't want to invest a lot of time and effort into something that doesn't perform well.How much smaller a box?
The smaller you go, the longer the port will be for the same Fb, so will eat a larger % of the total volume.
Something in the neighborhood of 24 x 24 x 20. Could probably go a little larger.What would be the exact dimensions you can work with?
I've thought about that, but not sure how to get started. I guess I could always go sealed and just put a low pass filter on the sealed sub to prevent cancellations around port tune. I thought it might be possible to do a small ported sub since JTR has something coming out that is quite small for a 10hz tuning.If you can afford it, passive radiators would be very helpful.
Probably mandatory if you want to match what looks to be a quite low Fb of your current sub.
The way I look at this particular kind of situation is not that it's impossible to do small ported subs with low tune, it's just that you still have to work within the physics of ported subs and the fact that their efficiency around tune is largely a function of volume and port size. The major limitation of a small ported sub is that port compression/velocity will become an issue a lot sooner because it doesn't have the volume to support a port with a large cross-sectional area.I thought it might be possible to do a small ported sub since JTR has something coming out that is quite small for a 10hz tuning.
That's an interesting idea, and one that might prove to be the best option. With an external port, does it matter how far from the driver the end of the port ends up? Might be able to get rather creative with that design.Another possibility, though likely impractical but maybe not depending on your situation, would be a long external port.
...I don't see a whole lot of value putting more expensive beefier drivers in a small low-tuned sub, since once you are hitting the limits of the port there isn't much to be gained aside from the mid/high bass where you'll have plenty of output in any case
That's an interesting idea, and one that might prove to be the best option. With an external port, does it matter how far from the driver the end of the port ends up? Might be able to get rather creative with that design.