Altec Lansing MX5021 manual BOX Contents, Placing Speakers, Making Connections, Powering on

THIEL HIGHERPLANE 1.2 SPECIFICATIONS

Amplitude Response	75 Hz-20 kHz ±3 dB
Phase Response	Minimum ±10°
Sensitivity	89 dB@2.8 V-1m
Impedance	4 ohms (3 ohms minimum)
Recommended Power	30-200 watts
Size	11.25 " diameter x 6.625 deep"
Weight	8 pounds

HIGHERPLANE 1.2 CABINET DIMENSIONS

Rough opening without preconstruction bracket is 10.25 inches in diameter