Okay guys -- all the details have been finalized on the SA-15s so we started production today. ETA is roughly the end of November for these to arrive. As always with a pre-order there is the chance for delays so please keep that in mind -- pre-orders are final and there will be no refunds for delays. SA-15 Prototype Photos : Specifications : FS : 30.9 Hz Qts : 0.60 Qes : 0.66 Qms : 6.12 VAS : 92.7 L Mms : 308.4 g Box Suggestions : Sealed @ 2.5 cubes (Qtc = 0.888) - F3 of 42 Hz Ported @ 3.0 c