RARE PAIR of VINTAGE ALTEC LANSING SUPER DUPLEX 604E alnico monitor speakers
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You're looking at a rare pair of vintage Altec Lansing Super Duplex 604E alnico monitor speakers. They are in excellent condition for their age with close serial numbers. The speakers were just removed from a working pair of Big Reds. Everything from the paper cones to the felt dust caps to the horns are in fantastic shape. They'll come with a printout of the original spec sheet too.I have 100% positive feedback. I'll be sure to pack these speakers up safely. I'm also selling a pair of excellent Mastering Lab Network Crossovers - check my other auctions. More info:Altec 604E Super Duplex Speaker 15" Duplex Speaker Magnets: Alnico V Power Rating: 35 watts, 50 peak Sensitivity: 100dBSPL/1W/4ft or 115.4dB w 35 W Free Air Resonance: 32Hz Response: 20Hz - 22kHz Crossover: 1500 Hz Impedance: "8 to 16 ohms" - nominally 16 ohms Phase Plug: Circumferential HF horn: 6-section sectoral-style horn with divider vanes - 90° horizontal and 40° vertical Cone: paper w/ viscous compliance damping and annular spider (accordion) Frame: 15.2" cast frame, rear mount, white basket and gray paint on motors/pdf/Duplex_Speakers_related_to_Altec_604/604_1964_604E_Super_Duplex_Speaker.pdf
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