SA-Series v.2 18" Subwoofer1250 Watts RMS 2500 Watts Peak Dual 2 or 4 ohm voice coils Vented magnetic gap & pole piece Aluminum 2. 75 voice coil former for superior heat dissipation Innovative high velocity, cast aluminum vented frame spacer ring Magnet ID faraday ring for smooth acoustic response High temperature copper voice coil wire Spring loaded terminals Stitched on double XL tinsel leads This SA 10 12 15 v. 2 series is a top down upgrade from the original SA series. The
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product description
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1250 Watts RMS / 2500 Watts Peak
Dual 2 or 4 ohm voice coils
Vented magnetic gap & pole piece
Aluminum 2.75” voice coil former for superior heat dissipation
Innovative high velocity, cast aluminum vented frame spacer ring
Magnet ID faraday ring for smooth acoustic response
High-temperature copper voice coil wire
Spring-loaded terminals
Stitched-on double “XL” tinsel leads
This SA-10/12/15 v.2 series is a top-down upgrade from the original SA series. The 2.75” coil punches way above its weight, outperforming many 3” coils without the adding weight & with the added advantage of a wider spider. We are able to perfectly balance the mass, motor force, and suspension stiffness for the intended power level.
The motor also features a large magnet shorting ring (faraday ring) to reduce distortion and deliver smoother response across the entire acoustic spectrum. The motor & coil setup is mated to an extremely robust multi-layer spider with fully tied-on & doubled-up “XL” tinsel leads. A competition-grade paper cone, strong foam surround, and cast aluminum frame are used to complete this masterpiece. On top of the ~19mm of one-way linear excursion we have an x-mech limit of 37mm one-way before coil bottom making it nearly "bottomless."
The 18" model features a larger diameter motor to drive the higher mass.