Rockville (4) RM68PRO Black 6.5" sku-406017393 Speakers

Rockville (4) RM68PRO, sku-406017393, is a Black 6.5" open-basket midrange speaker set listed under Restored Automotive. UPC: 613815616702. The 4 speakers have a combined 800W peak rating, or 800 watts total. Each speaker is CEA-rated at 200 watts peak and 100 watts RMS, with 8-ohm impedance. Construction includes a 90oz magnet structure, an oversize 1.5 high-temperature CCAR voice coil, a Kevlar-reinforced black pulp cone and Kevlar-reinforced pulp-paper dustcap, treated-cloth accordion suspension, a linear progressive Conex spider and a high-tensile expanded-steel basket. Frequency response is 85Hz to 7 KHz; sensitivity is 103dB at 1w / 1m. Mounting depth is 3.07, cutout diameter 5.79", mounting diameter 6.16", and the 4 mounting holes measure 0.217" x 0.276". Parameters are Fs 128.91 Hz, Qms 5.34, Cms 0.1403 mm/N, Bl 7.32 N/A, Zmin 5.84 ?, Re 5.40 ?, Qes 0.89, Qts 0.76, Mms 10.8635 g, Rms 1.65 ?m, VAS 4.0146 L, Sd 143.1388 cm and dBspl 91.88. Inductance is 0.28 mH at L1kHz and 0.18 mH at L10kHz.