Gary R. Jones
1000
W.
Wilshire
Blvd.
Suite
360
Oklahoma
City,
OK
73116
Tel:
405-848-3108
Fax:
405-848-3217
SMALL FORMAT HF COMPRESSION DRIVERS
Early 604's and 800 series high frequency drivers used Alnico motors, most with a
circumferential phase plug. Later 604-8K and 900 series drivers used ceramic
motors with Tangerine® phase plugs. All use 1.75" voice-coils and diaphragm
assemblies and they can be interchanged.
Three types of diaphragm assemblies have been manufactured. You can verify
which diaphragm you have by inspection. The "Symbiotik" diaphragm has a
Kapton (plastic) surround with an aluminum dome (500Hz - 15kHz). The
aluminum and “Pascalite” diaphragms (500Hz - 20kHz) are all aluminum or
aluminum alloy. The "Pascalite" diaphragm has the sonic quality of the aluminum
diaphragm and handles twice the power.
Part #26420 (8 ohms) or Part #26421 (16 ohms) are recommended as
replacements for all drivers listed below . . .
604-8G,H,K
802-8D,E,G,T
806-8A,B
902-8A,B,T
Aluminum, 8 ohms.
Original Altec Lansing part#
34647
604B,C,E,
605A,B
802B,C,D
804A,B
806A,Z
902-16A,B
Aluminum, 16 ohms.
Original Altec Lansing part#
34852
807-8A,Z
808-8A,B,Z
904-8A
Symbiotik, 8 ohms.
Original Altec Lansing part#
34726
808-16A
Symbiotik, 16 ohms. Original Altec part#
35153
909-8A
Pascalite, 8 ohms. Original Altec part#
26420
909-16A
Pascalite, 16 ohms. Original Altec part#
26421
