U-15 D2 - Sundown Audio 15 Dual 2-Ohm 1500W RMS U-Series Subwoofer. Finalized terminal spacing, basket color, venting, cast aluminum surround clamp rings, etc. After about a year of work I think the U series maybe ready to start production soon. Stay tuned for more updates! This will be our new series to bridge the gap from the SA to the X v.
2 series -- it is also the most direct replacement for the discontinued Z v. 3 series but at a much lower price.
They use the same voice coil as the X v. 2 series; therefore RMS power is 1500-watts rated conservatively. The motor is a similar design to the X v.
2 series with one less magnet slug since it isn't needed for use on these frames & soft parts. It also retains a magnet ID shorting ring just like the X v.I have tooled 4 new cone bodies & surrounds to mate up to an entirely different frame tooling from the 1st prototypes. These surrounds are based on the Z v. 3 18 surround geometry as this has been our go-to cone for SPL (we use those cones in our Terra for our World Record in SS 3-4 class). We also have tooled the cones to support the same wide-flange dust caps we use on all the new platform drivers. They also feature custom tooled cast aluminum vent spacers to mate up correctly to these frames. We tooled 2 different spacers for this line. Another new feature (also fully custom tooled) is the cast aluminum surround bolt-on ring. We tooled one for each size U series. These woofers will have a similar sound to the Z v. 3 series -- meaning they do not have the "new platform" sound of the X, Z, NS, etc. DC Resistance (Re): 3.8. Resonance Frequency (Fs): 37.9 Hz. Equivalent Volume (Vas): 54.0 L.
Electrical Q Factor (Qes): 0.34. Mechanical Q Factor (Qms): 3.10.
Total Q Factor (Qts): 0.31. Voice Coil Inductance (Le): 2.44 mH. Force Factor (BL): 30.7 NA.
Air Load (Mms): 355.7 g. Suspension Compliance (Cms): 0.05 mm/N. Sensitivity: 91.2 dB 1w / 1m. Outside Diameter: 15.59 in.Cutout Diameter: 14.01 in. Recommended Port Area: 48 sq.
In order to maintain an inventory of 100%, Brand New, A-Stock, untouched products, all sales are final. We ask that you please be sure you are ordering the correct product.The item "SUNDOWN AUDIO U-15 D2 15 SUB 1500W RMS DUAL 2-OHM SUBWOOFER BASS SPEAKER NEW" is in sale since Tuesday, March 20, 2018. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "woofersetc_outlet" and is located in Los Angeles, California. This item can be shipped worldwide.