Z-Series ZV6 18" 2500W Subwoofer Z v.6 *USED*

USD 652.99

Description

This is a refurbished product that has been professionally rebuilt here at Sundown Audio. It comes with a non-doa warranty only. That means they are guaranteed to work when you receive it but no further warranty afterwards. Let us know within 24 hours of delivery if this product has an issue. We will not warranty any refurbished subwoofer after that time. These potentially have scratches & scuffs on the magnets/motors and will not be in new condition.   The Z v.6 is the second step up in Sundown's "ultra-high excursion" subwoofer lineup after the X v.3 series and replaces the world-famous Z v.5 series. All models (10,12,15,18) feature our custom tooled and patented frames (US Patent Numbers D691596, D691597, D691598, and D741841). Sundown mates these new platform frames to a quad stacked 240mm (9.45”) diameter motor structure with a total magnet stack height of 100mm (3.94”) featuring a hyper-extended pole and extreme clearances (allowing over 4" p-p travel before mechanical bottom effectively making it bottomless). Compared to the X v.3 motor both the top & back plates are thicker allowing for even more magnetic strength and excursion potential. For the Z v.6 the top plate is another 5mm thicker than even the outgoing Z v.5 series! This motor drives a 3" diameter 8-Layer Flat Wire Aluminum Voice Coil wound on a thick aluminum former to incredible levels of excursion. The Z v.6 now uses the same voice coil as the NS v.5 series. The Z v.5 utilized a 4-layer voice coil – the change to an 8-layer was to answer our customers desire for higher motor force (more output) and it does just that! Based on Sundown's years of experience with the Z v.4 and Z v.5 series we've also improved the voice coil ventilation to be even more effective. The Z v.6 features a high-velocity pole vent, a heavily vented magnetic gap, and (all new for the v.6) machined channels in four places around the pole piece itself. The Z v.6 series was designed from the ground-up to become the new standard in the low-frequency / small ported box subwoofer category in this price range. They will work in the same small enclosures that are commonly used for for Sundown Audio's subwoofers, although, they can be used with enclosures up to about 50% larger than those if you desire even more low-end extension. The Z v.6 series is really a different kind of woofer due to its incredibly linear suspension. They are designed for the LOWEST level of bass extension possible in a small enclosure while maintaining extremely low levels of distortion. Features Power Handling: 2500 Watts RMS Xmax = 35mm one-way by 70% BL Heavily vented magnetic gap Spring Loaded Terminals Optimized high-velocity pole vent Innovative high-velocity cast-aluminum vented frame spacer ring Black aluminum 3 inch 8-layer voice coil Mega-Roll v.2 surround Custom tooled basket Large aluminum Faraday (shorting) Ring Stitched-On XL Tinsel Leads to prevent fatigue and failure Custom-tooled ultra-linear spider packs Specifications T/S SPECS Z V.6 18″D1 Z V.6 18″ D2 RE (Ohms) 1.7977 4.0 FS (Hz) 26.6353 24.1230 VAS (L) 97.0485 116.3911 Qes 0.4869 0.4265 Qms 5.7399 5.7355 Qts 0.4489 0.3970 Le (mH) 2.1512mH 4.3519mH BL (NA) 20.4872 31.2785 Mms (Grams) 679.3307g 690.5587g Cms (uM/N) 52.5587uM/N 63.0341uM/N Sens (dB @ 1w/1m) 87.5064dB 87.5806dB Xmax 35mm 35mm Enclosure Specifications Sealed Enclosure Not Recommended Ported Enclosure 7 cu.ft. net Recommended Tuning 32Hz Recommended Port Area 100 sq.in. Displacement .27 cu. ft.  Depth 14.92" Outside Diameter 18.46" Cut-Out 16.68" Physical Dimensions Download Enclosure Designs .Zip File