SHCA PREMIUM ALUMINUM UNIVERSAL BASS KNOB WITH 3FT PRO LEADS 2008 - 2014 It has an impedance of

It has an impedance of 4 ohms

6 or 8 hole bolt patterns for use either as folded horn or front mount

Ground Zero GZHW 16SPL specs justify the price

Efficiency : 75% 4OHM

SHCA PREMIUM ALUMINUM UNIVERSAL BASS KNOB WITH 3FT PRO LEADS 2008 - 2014 It has an impedance ofAluminum Universal RCA Bass Knob Allows for bass level adjustment closer to the driver for convenience Perfect for balancing the system to change music styles Connects between the amplifier and stereo via RCA's Works with most head unit amplifier combinations Available in 6 different colors! Specs: 1. 5 x 1. 5 x 3" One engraved face 30" PRO RCA cable Over kill strain relief gland PRO potentiometer (blue 15k cycles)