Eminence LAB 12 Professional 12" Subwoofer Speaker 6 Ohm
Why does my speaker's rated impedance not match an ohm meter reading? – MESA/Boogie Support
Archimago's Musings: MEASUREMENTS: Speaker Impedance - Part 2; sealed, ported, and a few of my speakers...
Speaker Impedance, the TRUTH about OHMS and BOX RISE - YouTube
2 Ohm Vs 4 Ohm Subwoofers - Which Is Better?
Pyle Plpw10d 10 Inch 1000 Watts Maximum Car Audio Power Dual Voice Coil 4 Ohm Impedance Subwoofer Sound Speaker System Unit, Black : Target
How To Tell The Impedance of A Speaker - A Guide For Everyone
Amazon.com: Pyle 6.5 Inch Mid Bass Woofer Sound Speaker System - Pro Loud Range Audio 300 Watt Peak Power w/ 4 Ohm Impedance and 60-20KHz Frequency Response for Car Component Stereo PLG64,Yellow : Electronics