• Black Aluminum 2.5" voice coil former for superior heat dissipation
• High Temperature 4-Layer copper voice coil wire
• Stitched-On "Mini-XL" Tinsel Leads to prevent fatigue and failure
• Solid Pole with high velocity vent channels machined around the OD

Sundown Audio SLD-10 D2 10" 500 Watt Dual 2 Ohm Shallow Subwoofer

This listing includes:

• (1) Sundown Audio SLD-10 D2 10" 500 Watt Dual 2 Ohm Shallow Subwoofer

The Sundown SLD series can be considered a "re-boot" of the SD-2 line from 2011. The SD-2 was essentially a "shallow SA v1" by design – meaning it shared the cone, surround, and spider with the SA but with a shorter motor with a shorter coil. The SD series went another route starting with the 3rd generation (SD-3) – tilting more towards SQ and sealed enclosures (this remains true for the SD-4 series as well). Due to popular demand we created the SLD series to add a heavily abuse tolerant "shallow" that likes ported boxes back into the line-up!

Much like the current SD-4 series we utilized solid pole-piece so the SLD can also be mounted directly against the rear enclosure wall to reduce net depth requirements. Compared to the old SD-2 we have introduced numerous important upgrades: pole-piece channels for reduced air noise & increased cooling, top-plate "slits" for better cooling and less distortion, and a magnet ID shorting ring. In terms of long-term reliability we have also bolted down the spider, bolted the motor together, bolted on the aluminum pole cap, and added "mini-XL" lead wires thus ensuring many years of flawless service.

The bottom line is if you need a relatively shallow woofer that will take a beating then the SLD is, hands-down, the woofer for you from our line. If you are looking for more SQ then look toward the SD-4 series.

Features:

• Xmax = 12mm one-way by 70% BL


• Xmech is a hard limit of 25mm one-way (being over 2x the Xmax it is a very generous limit)


• RMS Power = 500-watts


• Vented, EMD Cut, Top-Plate Design


• Bolt-through motor design to ensure maximum longevity and ruggedness against mechanical failures** This motor is bolted through the top so the bolts are not visible from the back like several other models.


• Magnet ID shorting ring

Specifications:

• RE (Ohms): 3.65


• FS (Hz): 44.907


• VAS (L): 14.630


• Qes: 0.452


• Qms: 2.212


• Qts: 0.376


• BL (NA): 18.247


• Mms (Grams): 146.252


• Cms (uM/N): 85.883


• Sens (dB @ 1w/1m): 86.5

Enclosure Specifications:

• Sealed Enclosure: 0.5 cu ft


• Ported Enclosure: 1.0 cu ft


• Recommended Tuning: 35Hz


• Recommended Port Area: 15 sq in


• Depth: 4.9"


• Outside Diameter: 10.5â€


• Cut-Out: 9.25â€

Subwoofer Dimensions:

• Overall depth: 6.01"


• Mounting depth: 4.94"


• Overall diameter: 10.4"


• Cutout diameter: 9.28"