Which Subwoofer would you choose?


Hello everyone I’m seeking some advice on which subwoofer would be ideal. First off my tv room size is rather large, 20x20 connected to an open kitchen currently I have (2) Klipsch RP280F towers and an Onkyo TX-NR708 receiver, my budget is around $275.00 (Shipped) for a sub I found these 2 subs used locally both in good condition

Velodyne VRP-12 12" $120.00
Velodyne SPL-1500R 15" $275.00

I’m not sure if SPL or VRP is better? or if the prices of these are not worth it? Can I get something better for $275.00? any advice would help! thanks in advance.
mlaney
Either of those subs should "fit the bill".  Please note that the Velodyne company is no longer in the subwoofer business.  If you enter "velodyne.com" into your browser, it takes you to the Velodyne LiDAR website, they apparently are in the driverless car business now.
just bought 2 REL 212 SE subs...trading in an S5. to say they are amazing would be an understatement. The REL rep drove 3 hrs to set them up....free. could not be happier. Any question is answered quickly by their staff.
http://velodyneacoustics.com/

Actually, Velodyne Acoustics is very much in business in the same location on Digital Drive in Morgan Hill CA.

Their audio related sensor technology has evolved a new company, LiDAR on Hellyer Ave in San Jose CA. for the development of sensors and applications for autonomous navigation and currently provide a variety of these applications to an impressive list of international manufacturers. 

I've owned five Velodyne subwoofers over the years. I currently own two DD Plus subwoofers one purchased new from Velodyne the other used. My only service experience with Velodyne, they replaced the infrared sensor in the used sub out of warrantee for a reasonable price and in less than two days.

I'm guessing they don't offer a product for less than $275. The SPL I owned is still doing duty in a friends home theater.   
Another vote for the Dayton from Parts Express. They are new with warranty and fit your budget. Parts express stands behind their products. I've used several in this line of subs when setting up budget systems and you can't get more for your money.