Eclipse TD712z loudspeaker

摘要

Single drive unit speakers have had a long and, it is only fair to say, largely inglorious history over the last 30 years. But it's still widely appreciated that a single drive unit loudspeaker can offer a kind of musical insight not available from multi-driver systems. Examples already seen have included elliptical drivers with small weights stuck strategically to the cone to damp resonances, and more recently (for example, Acoustic Precision's Eikos with its novel expanded polyurethane enclosure) using small aluminium cone drivers, often from Ted Jordan, intended to be as near full-range as could be contrived. In most cases, however, the baby has been thrown out with the bathwater, and the resulting loudspeaker has suffered gross failings. The most successful single drive unit speakers have been those from from the venerable Lowther range and more recently Rehdeko, but although these avoid electrical crossover networks, they do use separate 'whizzer' cones to help large bass cones reproduce high treble frequencies.