Driver Complement    

One Pivotable High-Velocity Folded Ribbon AMT Tweeter

6.5" (16.5cm) 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 - 250Wpc
Dimensions    

Speaker: 8.1" (20.63cm) diameter x 3.5" (8.73cm) D

Square Grille: 8.7" (21.98cm) x 8.7" (21.98cm)

Round Grille: 8.7" (22.06cm) diameter

Cutout: 7.1" (18cm) diameter
Weight     Product: 4lbs (1.8kg); Shipping: 5.5lbs (2.5kg)