As with the X series; Z v. 4 series was designed from the ground-up to become the new standard in the low-frequency / small ported box subwoofer category. They will work in anything from our traditional very small enclosures such as the SA and Z v. 3 series up to about 50% larger than those suggestions for the maximum amount of low-frequency extension. These enclosures sizes are smaller than those recommended for many other woofers on the market today -- all the while retaining industry leaded levels of low-end output.4 series is really a different kind of woofer due to it's incredibly linear suspension. They are designed for the LOWEST level of bass extension possible -- they are not what I would consider SPL drivers; but they will get extremely loud and clean. 4 series is the driver for you. Due to the extremely low level of suspension induced distortion the typical "punchy" upper-bass peak in the 40s-60s Hz range that occurs with traditional woofers when pushed to high excursion does not occur. This "punch" is caused by a tightening of the suspension over stroke leading to increased FS and Qts figures -- in other words it is distortion that some consider to be pleasing; but distortion none-the-less.
4 D2 18 1750 Watt RMS Dual 2-Ohm Subwoofer. Voice Coil Configuration: Dual 2 ohm. Innovative high-velocity vented frame spacer ring.
Black Aluminum 3 voice coil former for superior heat dissipation. High Temperature 8-Layer Aluminum Flat Wire Voice Coil (Made in USA).Large aluminum Faraday Ring (Magnet ID). Pole Cap Faraday Ring / Air-Flow Optimization Plug. Stitched-On Double-XL Tinsel Leads to prevent fatigue and failure. High strength, custom tooled & patented cast aluminum frame. Optimized for small ported & band-pass enclosures.
Xmax = 35mm one-way by 70% BL. Gasket Overall Diameter: 18.42. Recommended Ported Enclosure Size: 7.00 Ft^3.
Recommended Port Area: 112 in^2. The item "Sundown Zv4 18 Inch Subwoofer Dual 2 ohm Z-18 V. 4 D2" is in sale since Monday, August 17, 2020. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers".
The seller is "jtre2650" and is located in Mesa, Arizona. This item can be shipped worldwide.