The Sundown Audio ZV6-12 D1 is a 12" subwoofer rated at 3250 Watts RMS and 6500 Watts Peak with Dual 1-Ohm DVC configuration. It utilizes a 3" 8-layer flat wire aluminum voice coil wound on an aluminum former and a quad stacked 240mm motor structure with a 100mm magnet stack. The design includes a vented magnetic gap, high-velocity pole vent, machined pole channels, cast aluminum frame, stitched XL tinsel leads, Mega-Roll v.2 surround, and aluminum Faraday ring. Xmax is 35mm (one-way by 70% BL).

Thiele/Small parameters include RE 1.9 Ohms, FS 33.8198 Hz, VAS 15.934 L, Qes 0.3896, Qms 5.326, Qts 0.363, Le 1.9749 mH, BL 20.792 NA, Mms 412.9036 g, Cms 53.6353 uM/N, and sensitivity 83.7396 dB @ 1W/1m. Mounting depth is 11.75", cutout diameter is 11.09", displacement is 0.24 cu ft, and motor diameter is 5.78". Recommended enclosure is 2.5 cu ft ported with 38 sq in port area tuned to 32 Hz. A 4th order enclosure uses 1.0 cu ft sealed and 3.0 cu ft ported with 60 sq in port area and 8" port length. Sealed enclosure alone is not recommended.

The RPB1 portable Bluetooth speaker is rated at 10 Watts Peak and 3 Watts RMS with IPX67 waterproof construction. It supports Bluetooth 4.0 with EDR, A2DP streaming, NFC pairing, and up to 40 ft wireless range. The 500 mAH rechargeable battery is rated for up to 10 hours of playback with 1-2 hour charge time. Frequency response is 150 Hz-18 kHz with distortion less than 1%. Unit dimensions are 3.3" x 3.7" x 1.57" and weight is 0.31 lbs.