Tweeter
The 1-inch metal dome tweeter lacks any resonances, energy storage, or colorations in the audible range. The short coil/long gap, large suspension design provides very low distortion and high dynamic range. The result is high frequency reproduction of unparalleled clarity and realism.

Midrange
The 4.5-inch midrange driver uses our unique double-surface, air-core diaphragm, which practically eliminates cone break-up and the storage of unwanted energy, to provide exceptionally clear response. A short coil/long gap motor system is used for extremely low distortion. Very rigid cast magnesium chassis are used in all THIEL drivers to improve clarity.

Woofer
The 10-inch woofer employs an extremely rigid aluminum diaphragm to eliminate cone resonances and unwanted energy storage. A special specially shaped magnetic pole further reduces distortion, and heavy copper rings maintain an ultra-stable magnetic field. In conjunction with the bass radiator, which eliminates bass port resonances and noise, the result is remarkably clean bass reproduction.

Specifications

Driver complement and description 3-way system with 1" metal dome short coil/long gap tweeter; 4.5" double-cone midrange with short coil/long gap motor system; 10" metal cone woofer with specially shaped pole and heavy copper rings; passive radiator

Bandwidth (-3dB) Hz-22 kHz

Amplitude response 29 Hz-20kHz ±1.5 dB

Phase response minimum ±10°

Sensitivity 86 dB @ 2.8 V-1m

Impedance 4 ohms (2.5 ohms minimum) 27

Recommended power 100-400 watts

Size (W x D x H) 12.5 x 17 x 48.5 inches

Weight 107 pounds

Warranty 10 years