Comando CRX-8PE31-MASTER 8" Midrange Loudspeaker Car Stereo Receivers a special interface adapter to

a special interface adapter to retain audio controls on your steering wheel or other important vehicle functions like navigation

Also they both have multiple voice coil options to get the most from your amplifier

2ohm RMS Power: 150W x 4ch

the KB-TUNDRA14 pulls its weight and leaves you with a setup you can trust over the long haul

Comando CRX-8PE31-MASTER 8" Midrange Loudspeaker Car Stereo Receivers a special interface adapter toThe MASTER of 8" Midrange Power Designed for extreme volume with clean, aggressive mids. Built with a reinforced cast aluminum frame and a high temperature 3" CCAW voice coil to handle serious heat and abuse. Program Power: 1800W Sensitivity: 97. 5 dB (1W 1M) Frequency Response: 60Hz6kHz Impedance: 8 Perfect for: pro audio builds, walls, tunnels, extreme doors, show cars.