POWER HANDLING: 400 WATTS RATED POWER
SOLID DIE CAST BASKET WITH MAGNET COVER
IMPEDANCE: 4 ohm
FREQUENCY RESPONCE: 27Hz-800kHz
SPL: 90dB
ONE NON-PRESS PAPER CONE SUBWOOFER
60 oz HIGH ENERGY STRONTIUM MAGNET STRUCTURE
HIGH TEMPATURE ALUMINUM VOICE COIL
VENTED BASKET
This is what I gather from the box, these are some non brand subs, no idea what the brand is but they're SOLIDLY built. I should be testing one this week, I have 3 for sale. $40 shipped per sub.