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.
Hifi system made by Technics in the late nineties. It is composed of a power amplifier (30 Watts per channel), a stereo tuner and an equalizer. Phono,tuner, tape and auxiliairy inputs. Connectors for two pairs of speakers.