Experience groundbreaking bass performance with the KICKER SoloX L7X. This competition subwoofer is equipped with a triple-stacked ferrite magnet and hyper-extended pole piece, creating an enormous and linear magnetic field for ultra-deep bass even at high volumes. The SoloX L7X features Forced Air Cooling technology, ensuring that the subwoofer remains cool under extreme conditions. This advanced cooling system contributes to sustained performance and durability, making it ideal for competition-level setups. Built for competition, the subwoofer boasts a heavy-duty UV-resistant Santoprene surround, double-pressed pulp cone, and a cast-aluminum basket. This combination ensures not only powerful sound but also durability under intense usage. Repairing and maintaining your SoloX L7X is hassle-free with the field-replaceable recone kit. With an exclusive surround compression system, bolt-on spider landing, and alignment shims, you can keep your subwoofer performing at its best without the need for professional assistance. The subwoofer's design includes a single 8 AWG terminal and a dual 8 AWG terminal block, providing flexibility in wiring configurations. Whether you're aiming for a single or dual setup, the SoloX L7X adapts to your specific installation needs. The KICKER SoloX L7X is our most advanced bass technology with extreme power handling – made to turn heads! Incomparable SoloX always promises high-excursion design, made for ultra-deep bass at very high volume. It’s developed like no other KICKER subwoofer. Features: Field-Replaceable Recone Kit – cone/voice coil/spider assembly, and no gluing required Forced Air Cooling Three-inch, aluminum voice coil former Dual-spider suspension Double-pressed pulp cone Heavy-duty UV-resistant Santoprene surround Custom rubber magnet boot Cast-aluminum basket Single 8 AWG terminal and dual 8 AWG terminal block Triple-Stacked Ferrite Magnet Specifications Size (in, cm): 18, 46 (approx.) Rated Impedance (Ohms): 2 Rec Amp Power (Watts RMS): 1000-2000 Frequency Response (Hz): 18-100 Magnet Diameter (in, cm): 8-11/16, 22 Total Magnet Weight (oz, kg): 406, 11.5 Voice Coil Diameter (in, mm): 3, 75 Voice Coil Winding Width (in, mm): 2.5, 62.5 Top Plate Thickness (in, mm): 0.5, 13 Xmax (in, mm): 1.25, 31.25 Recommended Vented Box Volume (ft³, L): 7.5, 214.5 Port Opening (in x in, cm x cm): 6.5 x 19.5, 16.5 x 49.5 Port Length (in, cm): 27.75, 70.5 Vented Enclosure Tuning Frequency (Hz): 28 Thiele/Small Parameters Re: 3.55 Ohm Krm: 0.01565 Ohm WRIGHT inductance model Erm: 0.84 WRIGHT inductance model Kxm: 0.09265 Ohm WRIGHT inductance model Exm: 0.68 WRIGHT inductance model Cmes: 1087.865 µF Lces: 28.08 mH Res: 33.51 Ohm fs: 28.9 Hz Mms: 749.0225 g Mmd (Sd): 689.433 g Rms: 20.588 kg/s Cms: 0.0405 mm/N Kms: 24.75 N/mm Bl: 26.2455 Tm Qtp: 0.8265 Qms: 6.605 Qes: 0.7025 Qts: 0.6345 Vas: 113.94675 n0: 0.3755% Lm: 87.94 dB Lnom: 88.455 Sd: 1406.25 cm² Xmax: 31.25 mm