THE HOLY GRAIL OF ALL LOUDSPEAKERS  Altec Lansing Corp. Original 604 Duplex Speaker in Home Wood Cabinet Model #604, Serial 11030 Made in Hollywood, California This rare speaker measures approximately 15" and has a built-in horn and crossover, 8.2 woofer and 9.4 driver. 60 to 15,000 + Cycles 20 OHMS Cabinet dimensions are approximately 40"T x 16"L x 29"D.