Solo-baric L5 Subwoofers Model: S10l5size (inch, Cm): 10, 25.4impedance (ohms): 2 Or 4 Dvcmax Rec Amplifier Power (watt Peak/rms): 900/450sensitivity (db 1 Watt/ 1 M): 86.3frequency Response (hz): 24-100mounting Depth (inch, Cm): 6-3/16, 15.7mounting Cut-out Square (inch, Cm): 9-5/16, 23.7min Rec Sealed Box Volume (cu, Ft, Liters): .66, 18.7max Rec Sealed Box Volume (cu, Ft, Liters): 1.0, 28.3min Rec Vented Box Volume (cu, Ft, Liters): 1.25, 35.4max Rec Vented Box Volume (cu, Ft, Liters): 2.25, 63.8model: S12l5size (inch, Cm): 12, 30.5impedance (ohms): 2 Or 4 Dvcmax Rec Amplifier Power (watt Peak/rms): 1200/600sensitivity (db 1 Watt/1 M): 86.9frequency Response (hz): 20-100mounting Depth (inch, Cm): 6-13/16, 17.3mounting Cut-out Square (inch, Cm): 11-1/16, 28.1min Rec Sealed Box Volume (cu, Ft, Liters): .88, 24.9max Rec Sealed Box Volume (cu, Ft, Liters): 2.0, 56.6min Rec Vented Box Volume (cu, Ft, Liters): 1.75, 49.6max Rec Vented Box Volume (cu, Ft, Liters): 3.25, 92.1the Solo-baric L5 Inherits All The Same Patented Technology As The Dominant L7 Square Woofer, With A Hot New Look And Improved Design For An Even Mightier Performance. The Cone And Basket Take On A More Macho Feel In 2008. Like Its Ultimate Solox Subwoofer Big Brother, The Solo-baric L5 Utilizes Solokon Technology, A Vacuum-formed, Ultra-rigid Design With Vented 360-degree Back Bracing Used To Push Mass Quantities Of Air. A Santoprene Surround Handles The Force Of The L5's Motor And Cone, And A Rear Foam Gasket Secures The Stamped-steel Basket To Any Given Baffle. The Logo-bearing Steel Basket With Spring-loaded Terminals, A Stout Magnet, And The Logo-bearing Protective Front Gasket Also Allow The L5 To Take On Any Punishment Given. The L5's Motor Structure Also Handles Extreme Power With High-temp Dual Voice Coils Covering A New Heat-dispersing, Solid Pole Piece, A Poly-cotton Semi-progressive Spider With Perimeter Venting Built Into The Spider Landing, And Long-lasting Spiralead