Rockford Fosgate RNGR18-STG1 Motorcycle Amplifiers A professional-grade crimping tool is

A professional-grade crimping tool is required to properly crimp these rings

Dual extruded heat sinks

while permitting the placement of a large motor structure further forward in the speaker than with conventional designs

1 each MX500/4

0 dB @ 1 W / 1 m System Nominal Impedance 4 ohms System Frequency Response 59 Hz - 22 KHz ± 3 dB

Rockford Fosgate RNGR18-STG1 Motorcycle Amplifiers A professional-grade crimping tool isAll the Rockford Fosgate sound, easy installation, quick smartphone connection, and right out of the box performance, so everything just works, so you can too. All in One Audio Solution: Housed in a single enclosure, the speakers and source unit come pre installed which means no additional setup or tweaking is needed. Element Ready: Purpose built for the off road environment, Rockfords Element Ready products are built to stand up to water, dirt, mud