The Colossus 18XB is intended for use as a high-output sub-bass driver either singly or in multiway systems. The unit features a 4-inch voice coil immersed in a symmetric magnetic field and centralized by using two suspensions in a dual arrangement to maintain ultra linearity and stability at high excursions. The heavily ribbed straight-sided paper cone membrane is reinforced with highstrength...
ANN-515 Passive Sub-Woofer Speaker, Metallic Silver Finish. 2 Front Air Port Tubes Damping Foam Assembled Inside 1 Pair 5 Ways Speaker Jacks Freq. Resp.: 23Hz ~ 500Hz Sensitive: 90 dB Resistance: 6.5 ohm Handling Power: Analog Min.100W/Max. 300Watts, Digital 500Watts. Weight: 37 lbs Dia.: 18.5"(H)x 15"(W)x 18.5"(D)