The v.4 update is a minor refresh from the v.3 featuring a new custom-tooled, stronger stamped steel frame and a upgrade to our directional forced-air cooling spacer.

A double stacked magnet structure and an extremely long voice coil allow us to achieve a class-leading linear x-max of 14mm one-way in addition to high mechanical clearances

The tinsel leads have been upgraded to a new "Mini-XL" lead containing 63-strands of conductor to help prevent potential failure due to amplifier clipping. If you are looking for a great subwoofer option and do not want to break the bank the Sundown E-Series woofers are for you & these are the best E series made to date.

Product Features:

• Xmax = 14mm one-way by 70% BL
• RMS Power = 1000-watts
• Vented magnetic gap
• Vented pole piece with optimized geometry
• Black Aluminum 2.5" voice coil former for superior heat dissipation
• High Temperature 4-Layer copper voice coil wire
• Spring Loaded Terminal
• Stitched-On "Mini-XL" Tinsel Leads to prevent fatigue and failure
• Bolted-on Spider Pack
• Bolt-through motor design to ensure maximum longevity and ruggedness against mechanical failures
• High strength stamped steel frame
• Optimized for ported enclosures

Specifications:

• RE (Ohms)                 6.13
• FS(Hz)                        28.373
• VAS(L)                        54.292
• Qes                              0.57
• Qms                             3.542
• Qts                               0.491
• BL(NA)                        20.249
• Mms(Grams)              213.033
• Cms(mm/N)               146.589
• Sens(dB @ 1w/1m)   85.3