Big speaker, 3 way, Active Transmission Line.
ALS30 Provisional data (with graphs, PDF format).
Drivers reference : tweeter : unknown; medium : unknown, bass: unknown.
The ALS 30 is our smallest Active Line speaker incorporating two dissimilar six-inch bass units. It's mid-range driver and dome tweeter are identical to those in the ALS 40.
Dimensions
22 1/2" x 13" x 11 1/2" wide; 57 cm x 28 cm x 30 cm
Drive Units
6 1/2" 16.5 cm ribbed bextrene bass unit
6 1/2" 16.5 cm bextrene sub-bass unit
4" 10cm rolled surround impregnated cone mid-range with domed tweeter
Crossover
Electrical four way at 250 Hz, 450 Hz and 3.5 kHz
Frequency Range
29 Hz 20 kHz
Matching Impedence
4 - 8 ohms
Efficiency Measured via Pink Noise at 1 metre on axis for 40 watts
99dB
Driving Power Requirements
25 - 50 watts
Nett Weight (each)
16 kgs
Gross Weight Packed (pair)
38 kgs
Subject to afteration without notice.
IMF International, Westbourne Street, High Wycombe, Bucks. Telephone High Wycombe 35576
