Altec Lansing

[Banned]

Ik heb hier een driver van Altec Lansing. Het is van het type 288 16K.

Hij zit op een TD400 hoorn van Beyma. Tis een flinke driver maar ik kan er weinig over vinden. Impendantie is 16ohm.

op de site van altec lansing zelf kom ik niet verder dan complete speakers en geen losse componenten.

IS er hier iemand met ervaringen of is bekend met deze drivers ??

[flurk]

Altec Lansing werkt veelal met Electro Voice onderdelen.Misschien daar eens je licht opsteken.

[Paultje]

Memphisto,

De Altec 288 is oorspronkelijk afkomstig van JBL.
Kijk maar eens bij JBL of informeer eens bij Audio XL NV Ambachtsweg 50 in Utrecht. Dit bedrijf is de importeur van JBL in Nederland.
Hier onder staat een stuk van JBL waarin de 288 toegepast wordt in een systeem.

With the new stability offered by the merger, Lansing was at last free to pursue his work without financial worry. During these years, he perfected many of the processes that have become standard in loudspeaker manufacturing around the world, including high-speed winding of flat wire voice coils on metal mandrels and hydraulic forming of high-frequency aluminum diaphragms. We should take note of two very famous systems that Lansing perfected in these years with Altec. The 604 coaxial loudspeaker of 1943 was a very successful combination of a small multicellular horn mounted concentrically with a 15-inch woofer. Working with John Hilliard, Lansing developed the A-4 theater system, a large two-way system standing about 8 feet high, which made use, for the first time in theater systems, of a low-frequency enclosure that was not open in the rear. The combination of horn loading through the mid-bass region and porting in the low-frequency range gave the system a level of low-frequency performance in the theater that had been unknown before. The high frequency section made use of a traditional high-frequency annular slit phasing plug driver with a three-inch voice coil, the model 288. The low-frequency transducer in the A-4 theater system was the model 515 loudspeaker, a fifteen-inch loudspeaker with a three-inch voice coil. It was the first low-frequency transducer to make use of flat wire. These early systems used field coil structures for attaining high flux levels in the transducers, since the permanent magnet materials of the day were not strong enough to provide the necessary field strength for these systems.

Succes,
Paultje