KEF LS50 High Gloss Piano White Finish with Matching Stands - Excellent Condition

All pre-owned product is tested in our service department and have been passed for sale... and comes with a 90 day warranty!

Please keep the 90 day warranty in mind when comparing our price to other listings.

These are in very, very nice condition!

Beautiful high gloss piano white finish.

See last image for specs.

The matching S2 stands are included. ( a $455 value) Stand dims are: 25.9 x 8.9 x 12.1 in
 

Original box and packing are ARE available for the speakers.

We can pack carefully and ship the stands in non KEF boxes.
 

These are the first version of the LS50's  World wide award winner! Sound great!

Unheard of in such a compact design, LS50 delivers a deeply rich, multi-dimensional 'soundstage experience' that is out of all proportion to its size. LS50's bespoke Uni-Q driver array, capable of mastering an exceptional range of dynamic highs and lows, reveals original source sounds typically lost by other speakers. Designed using KEF's cutting-edge acoustic modelling, LS50 is the ultimate mini monitor.

Every aspect of the cabinet construction has been thoroughly researched to give the best possible sonic performance in the manner of the very best studio monitors. The LS50's uses KEF's latest driver technology in the spirit of the original design and incorporates numerous patent pending technological breakthroughs in cabinet construction, baffle shape and port design - all made possible by KEF's leadership in modern research techniques such as Finite Element Analysis.

The three key technological breakthroughs in the LS50's are the constrained layer damping, the curved baffle and the flexible elliptical reflex port. These combine together to give a clear and spacious sound.

The curved baffle is shaped so that the sound waves spread from the drive unit with minimum reflection from the edges and that gives a very nice spacious sound. The curvature also improves the rigidity of the baffle which reduces the vibration. The constrained layer damping which is between the brace and the enclosure walls and also the front baffle, prevents the cabinet vibrating and radiating sound. This can otherwise cause coloration in the mid-range. The port tube has a flexible wall; this is to allow mid-range sound that is traveling down the port tube to escape back into the cabinet and prevents longitudinal resonances. These can otherwise radiate and cause mid-range coloration. The port tube also has very carefully flared walls to avoid the cuffing noises that you can get when you get air turbulence in the port tube.

The Finite Element method for modelling the vibration and the air inside the box, the boundary element method for modelling the radiation into infinite space, and computational fluid dynamics to look at the air flow inside the reflex port. The main benefit of this technology was that it allowed us to evaluate how much coloration was radiated from the port and the cabinet walls. We could also see exactly how the cabinet walls vibrated and the sound pressure varied inside the enclosure."

The LS50's high frequency unit has got a Tangerine Wave guide and optimum dome shape to reduce the spherical wave front. This together with the Z-Flex surround gives very wide dispersion, allowing a very spacious sound to be produced with a wide sweet spot.

The stiffened dome of the high frequency unit is centrally positioned in the magnesium aluminium alloy mid-range cone. These diaphragms both move as rigid pistons and the break up control of the mid-range unit allows an exceptionally accurate and clean sound. In this project the access we had to the very latest computing techniques allowed us to spend a considerable amount of time at the beginning of the project just exploring what happens inside the loudspeaker enclosure and the different geometries and materials we could use to make it perform better.