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
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