M-Series M8 1600W Subwoofer
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800W Watts RMS / 1600 Watts Peak
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Dual 2 or 4 ohm voice coils
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Optimized for small ported enclosures
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Aluminum 2.25” voice coil former for superior heat dissipation
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High-temperature copper voice coil wire
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Double stitched surround
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Carbon Fiber Cone & Dust Cap
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Heavy-duty cast basket
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Spring-loaded terminals accept up to 8-gauge wire
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Stitched-on heavy-duty tinsel leads
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High-Veloctiy Vented Pole
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Rear gap-venting
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18mm one-way linear x-max by 70% BL
The Sundown Audio M-8 is the big brother to the SA-8 v.3 model. Both the coil diameter and winding width are increased in comparison, resulting in higher power handling and more linear x-max. It features a Mid-Q which results in excellent vented and bandpass performance.
The specially designed motor is mated to a custom tooled and patented (US Patent D691595) frame. The smooth one-piece T-Yoke was FEA optimized for optimal flux transmission. The M-8 features a fully computer optimized spider & surround designed for low distortion and high levels of long-term endurance under demanding conditions. It features a thick magnet ID shorting ring to linearize and reduce inductance – thus reducing distortion even further. Every detail was engineered for phenomenal performance and pleasing aesthetics.

Specifications
| Dual-2-Ohm T/S Specs | |
|---|---|
RMS Power (D2) |
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Peak Power (D2) |
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Re-Ohms (D2) |
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FS-Hz (D2) |
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Vas-L (D2) |
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Qes (D2) |
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Qms (D2) |
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BL-NA (D2) |
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Mms-Grams (D2) |
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Cms-uM/N (D2) |
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Sensitivity-dB @ 1w/1m (D2) |
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Xmax (D2) |
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| Dual-4-Ohm T/S Specs | |
RMS Power (D4) |
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Peak Power (D4) |
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Re-Ohms (D4) |
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FS-Hz (D4) |
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VAS-L (D4) |
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Qes (D4) |
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Qms (D4) |
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BL-NA (D4) |
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Mms-Grams (D4) |
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Cms-uM/N (D4) |
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Sensitivity-dB @ 1w/1m (D4) |
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Xmax (D4) |
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| Subwoofer Measurements | |
Displacement (Inches) |
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Depth (Inches) |
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Cutout (Inches) |
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Motor Diameter (Inches) |
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| Ported Enclosure Specs | |
Ported Enclosure Size |
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Recommended Port Area |
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Recommended Port Tuning |
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| Sealed Enclosure Specs | |
Sealed Enclosure Size |
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| 4th Order Enclosure Specs | |
4th Order Sealed Side |
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4th Order Ported Side |
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4th Order Port Area |
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4th Order Port Length |
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