Description
The SA-6.5SW was created to achieve extremely high performance at less than 4” of mounting depth (3.8” to be precise). Rest assured that even with the limited depth the SA-6.5SW lives up to the reputation of the SA series! These little guys will take a beating in TINY ported enclosures. Our customers have been in love with the incredible performance per dollar since their launch in 2017.
As with several other lines (SLD and SD-4 notably) we used a solid-pole design. This allows the back-plate to rest against the back wall of the enclosure. This further reduces effective depth requirements for this woofer. Shallow depth aside this unit has a full 10mm one-way linear excursion and an x-mech in excess of double that! So there is almost no concern about bottoming out the coil. We also borrowed the hyper-extended pole technique from our larger lines to help prevent coil damage from exiting the gap forward. Furthermore; we even included a magnet ID faraday ring to keep inductive distortions in check!
Features (SA-10/12/15/18 v.2)
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RMS Power: 200-watts
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Coil: 1.5” Diameter Copper Windings w/ Black Aluminum Former
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X-Max: 10mm one-way by 70% BL
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Magnet ID Faraday Ring
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Solid Pole w/ Vent Channels
Specifications
T/S SPECS | SA 6.5 D2 | SA 6.5 D4 |
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RE (Ohms) | 4.0 | 7.1 |
FS (Hz) | 48.9 | 51.8 |
VAS (L) | 4.1 | 3.6 |
Qes | 0.50 | 0.54 |
Qms | 4.82 | 4.65 |
Qts | 0.46 | 0.49 |
Le (mH) | 1.69 | 2.45 |
BL (NA) | 13.5 | 17.9 |
Mms (Grams) | 74.8 | 75.6 |
Cms (uM/N) | .14 | .12 |
Sens (dB @ 1w/1m) | 81.6 | 81.5 |
Enclosure Specifications
Sealed Enclosure | 0.15 cu ft |
Ported Enclosure | 0.3 cu ft |
Recommended Tuning | 40Hz |
Recommended Port Area | 4 sq in |
Displacement | |
Depth | 3.79" |
Outside Diameter | 7.16″ |
Cut-Out | 5.93″ |
Physical Dimensions | Download |
Specifications
Product Brand | Sundown Audio |
Coil | Dual 4 Ohm (D4) Dual 2 Ohm (D2) |
Diameter | 6.5" |