Driver Complement    

One Pivotable High-Velocity Folded Ribbon AMT Tweeter

One 55.25" (13.33cm) High-Definition Cast-Basket Mid/Bass Driver
Efficiency     90dB 1W/1M @ 4Ω (2.83V/1M)
Frequency Response     42Hz–25kHz typical (-6dB on axis @ 100Hz, anechoic bass response)
Nominal Impedance     4Ω
Recommended Amplification     10 - 200Wpc
Dimensions    

Speaker: 7.2" (19.6cm) diameter x 3.5" (8.6cm) D

Square Grille: 7.7" (19.6cm) x 7.7" (19.6cm)

Round Grille: 7.7" (19.6cm) diameter

Cutout: 6.2" (15.7cm) diameter
Weight     Product: 3.5lbs (1.7kg); Shipping: 5lbs (2.3kg)