Starting with the 601 model, Altec Lansing mated a low frequency (LF) woofer with a high frequency (HF) compression driver, the two drivers sharing a common center for better point-source clarity in sound.
Starting with the field coil 601 model, Altec Lansing mated a low frequency (LF) woofer with a high frequency (HF) compression driver on a stamped steel frame. The two drivers shared a common center for better point-source clarity in sound.