Description
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. Due to popular demand we have 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 & Technology:
• Xmax = 12mm one-way by 70% BL
• RMS Power = 600-watts
• 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 vent channels around the OD
• Magnet ID shorting ring
T/S SPECS | SLD 10″ D2 | SLD 10″ D4 |
RE (Ohms) | 3.65 | 6.85 |
FS (Hz) | 44.907 | 46.817 |
VAS (L) | 14.630 | 12.091 |
Qes | 0.452 | 0.547 |
Qms | 2.212 | 2.246 |
Qts | 0.376 | 0.440 |
Le (mH) | ||
BL (NA) | 18.247 | 24.492 |
Mms (Grams) | 146.252 | 162.818 |
Cms (uM/N) | 85.883 | 70.979 |
Sens (dB @ 1w/1m) | 86.5 | 85.4 |
Sealed Enclosure | 0.5 cu ft |
Ported Enclosure | 1 cu ft |
Recommended Tuning | 35Hz |
Recommended Port Area | 15 sq in |
Displacement | |
Depth | 4.9″ |
Outside Diameter | 10.5″ |
Cut-Out | 9.25″ |
Warranty Information
Warranty Information
Sundown Audio requires us to send customers with equipment problems directly to them for all warranty and non-warranty claims. Please follow their proceedures..
Sundown Audio RMA form: https://sundownaudio.com/support/return-authorization-form/
Sundown Audio Product Warranty Information: https://sundownaudio.com/warranty/
Sundown Audio - Hours of Operation
2 Reviews
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Sld 10" d4
Great
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SLD10
Great so far. Using in a JL .5 sealed stealthbox to replace a blown w3. Sounds cleaner and deeper that the JL it replaced. Very happy.