Two-way speaker created by Harold Leak and Don Barlow in 1961. This speaker was named "Sandwich" because its woofer was made from a thick section of expanded polystyrene put between two outer skins of aluminium. As a result, this method enabled to reduce the vibrations and obtain a better reproduction of the electric signal.
First four-way speaker made by Cabasse, the Galion IV appears on the french manufacturer's brochure in 1979. The next year, it will win a prize in the Consumers Electronic Show in Chicago. Sold without foam grilles.
Three-way speakers using the peripheral laminar decompression system created by 3A. This system provides both the benefits of a sealed and a bass reflex speaker. A control located next to the tweeter allows to adjust low frequencies whether the speaker is raised or on the ground.
The AR-5 have a lot in common with the AR-3A. These speakers use the same crossover network and a similar midrange driver. The main difference with the AR-3A resides in a smaller woofer, hence a frequency response a bit less extended.