一級品のラウドスピーカー アルテック 604

1 Vacume Tube Valley . Charles Kittleson, VTM Editor . 604 1943 .. 604 (Duplex) .. 604C .. 604C. 30 22,000 . 50.. 604C . 604C.. 604C .. 12 . 601A 15 602A .. 1.. 1930 ( ) . (Iconic) .. (High Fidelity) .. ( ) .. 8,000 1940 . McMurdo Silver, ,Zeni . th Scratpsphere . J . ensen Q .. (Coaxial) . (James lansing ) 1920 . 1937 1940 . 15 15 JHP- .. WE . (All Technical Services) . 1920 1930 . Electorical Research Products Incorporated (Altec) . 1940 . 1938 . WE . 2. 1941 (John (Television Engineers trade show) 1943 10 . Hillard) (James lansing ) .. (105 dB/watt) 1,000 DC . ( ) . ( ) .. (Society of Motion Picture) .. 1945 (ALNICO 5) .. ( ) . 25 RMS 50 15,000 . ( . 1. A ) (Rolled Paper Surround).

2 ( ) .. 20 1,000 1945-1948 .. ID ( ) . 1948 . 1960 - ( ) . 1,000 . / / / .. 25 . 40 .. 60 .. 1 . 3.. 1952 . C 50,000 . ( ) 1,60 . 0 - 1957 . 1960 . 35 .. ID ( ) .. 4. 35 RMS 30 . 22,000 . ( ) 1958 12 / . 1964 .. 1965 1972 . (Super Duplex) 1,500 . ( ) 30 22,000 . - 8 .. 35 RMS .. 8 . 20 - 1980 . 1981 . 22,000 ( ) . 1,500 . 4 101 / .. 2.. 3 . 3 4.. 22,000 (UREI) . 6 40 1,500 . 90 2 . - 5 -8 . 70 . , (Carmel) (Malibu) .. - 1973 79 .. 1980 . 2 . 3 . 4 - . 5 . 5. - 120 RMS . 1980 . ( : - ) . 20 20,000 65 RMS . - .. 1,000 2,000 (Audiotechniques of Stamford) . 2,000 4,000 . 4-6dB 1971 . (mastering Lab) . (Doug Sax) . - .. 40 15,000 2 40 . 2,000 4,000 17,000 . - . 1,000 12 .. 1,000 70 . 80.

3 2,000 4,000 .. - Vacume Tube Valley 1995-1996 .. 6.. Charles Kittleson .. 7.. L .. , .. (Duplex ) . / .. / . / . ( )/ . 604-168X .. (Duplex ) .. 8.. (Duplex ) . (Duplex ) .. - . 9.. 10. - .. A&M . 11. - . - .. ( ).. ( ).. - . 12. - .. (Duplex) .. A/B.. ( .. ).. ( ).. - - .. / . / .. < > .. 13.. IN .. 14.. - .. (Symbiotik ) .. ( ).. 15.. - . - .. (Duplex) .. (Tangerine ) .. 16. - .. - . 16.. (Duplex) .. 604-168X/604-16X .. 17.. 18. 604-8L.. 604-8L . 19. 604 . 604 . Doug and Sherwood Sax 604 .. 800 . UREI 604 .. 604 . 604 . 604-8L . 604 .. 3 604-8L . 38 15 . 25mm(1 ) 40cm(16 ) .. 604-8L . 1,500Hz . 12dB/oct 18dB/oct .. 604-8L .. 6 - .. 20. 604-8L. 40 Hz 20,000 Hz 40 Hz (-10 dB). dB SPL.

4 75 W ( ) 300 W (peak). (1m) 123 dB SPL (peak). 60 ( ) 40 ( ). Q DI dB. Nominal ohm Minimum ohm at 12kHz THD %. 15 .. 1,500 Hz ( ).. 34647.. R-604-8L. 406 mm 381 mm . 359 mm 224 mm kg Fs 24 Hz Vas liters ( ft3). Qts T&S. Qes Parameter Qms Vd cm3 ( in3). %. 21. (Duplex) .. (Duplex) .. 604 .. 604E 16 EQ. 604-8G 8 EQ. 604-8H 8 EQ. 604-8K 8 EQ. 604-8L 8 EQ. 22.