This is an informational page devoted to owners and users of these loudspeakers and those interested in history and construction of electronic sound reproduction.
The drive units boasted a high sensitivity due to care in design and construction.
The woofers and mids use lightweight fibre cones with ceramic magnets and ventilated aluminium coils.
The cabinets have modular front baffles made from styrofoam (polystyrene) with open-weave steel-mesh grilles.
Opaque clip-on grilles were also supplied and all the speakers have LED power displays and re-settable overload protection.