Altec low frequency loudspeakers ore designed for use in the finest recording ond broadcast studio ‘Playback’ systems os well os providing outstanding reproduction of the· lower oudlo spe<lrum when used in two-way systems for the largest theatres and auditoriums. Utilizing heavy Alnico V permanent magnets, rugged, die-cost frames, edge-wound copper ribbon voice coil,s of the largest practical diameter, and e~ceptionally c~mpliont cone suspension, these LF transducers combine the advantages of long-term operation with unparalleled response throughout the entire audible bass frequency range.
Link for PDF: Altec 414A-515B-803B LF Loudspeakers