ALTEC 806-8A (1973-76) + ALTEC 811B Sectoral Horns




ALTEC 806-8A
Released in 1973 - 45,000 (1 unit, circa 1976)

Driver unit used for A7 - 8 and late Valencia etc.
Magnetic circuits are different between 806 - 8 A and 802 - 8 D.
Broadband playback is possible by combining with 511 B horn and 811 B horn
High performance is secured by aluminum alloy diaphragm and equalizer by special double slit structure of precision machining.
Model Driver unit
Frequency characteristic 500 Hz to 20 kHz
Permissible input 30 W
Impedance 8 Ω
Output sound pressure level 107 dB / W / m ||| 108 dB (New JIS, described in 1977 catalog)
Magnetic flux density 13,000 gauss
Crossover frequency 500 Hz or more
Throat diameter 25 mm
Voice coil diameter 45 mm
Suitable horn 511B, 811B
Adaptable network N501-8A, N801-8A
External dimensions Diameter 114 × depth 83 mm (described in 1974 catalog) ||| Diameter 114 × depth 71 mm (described in 1976 catalog)
weight 2.6 kg