Graham Audio

Graham Audio
Chartwell LS 6/f
(Cherry)

$ 34,500 $ 20,700
The Chartwell LS6f

Building on the success of the LS6 monitor, the Chartwell LS6/f is a floor-standing loudspeaker system that combines a modern aesthetic with the open, uncoloured sound you'd expect from a Graham Audio system.

The integrated plinth provides a flow-optimised path for the airflow from the port, reducing distortion at high outputs, while the high-quality drive units and optimised crossover are carried over from the renowned LS6. The result is monitor-class audio quality in a compact and attractive package, hand-made in the UK.

Graham Audio
Chartwell LS 6
(Cherry)

$ 25,000 $ 15,000
The Chartwell LS6

Following the success of the Graham Audio LS3/5 and LS5/9, we were curious to discover what could be done with a cabinet that was sized somewhere between the two.

The result is the Chartwell LS6, designed by Derek Hughes. A custom built 6 inch long-throw bass drive unit mated to a compact 17 litre cabinet gives bass extension and power handling that is comparable to the LS5/9. The bespoke 19mm dome tweeter extends to beyond 20kHz. The overall response retains the smoothness of both the LS3/5 and LS5/9.

A large rear mounted port gives effortless bass, while allowing us to minimise the size of the cabinet to allow it to blend easily into typical domestic environments.

A sophisticated crossover network blends the two units and equalises the overall response for optimum performance in free space. A switch on the front baffle adjusts the tweeter level to +1dB or +2dB. This can be useful for situations where the listening position is off axis.

In common with all our loudspeakers, the cabinet uses the classic BBC "thinwall" construction, where the panels are mass-loaded to ensure that resonances are moved away from the critical mid-range region, and a layer of Rockwool is held in place by fabric to provide air damping. Hand-matched veneers are applied and finished to a very high standard. The grille is carefully designed to minimise diffraction effects and is held in place by concealed rare-earth magnets.

Graham Audio
LS5/9 BBC
LICENSED MONITOR SPEAKERS
(Cherry)

$ 34,500 $ 20,700
The LS5/9 monitor loudspeaker is manufactured under license from the british broadcasting corporation and is built and tested in accordance with their specifications.

The LS5/9 uses two drive units with a passive crossover and equaliser. The tweeter is a proprietary soft-dome type as used in the LS5/8 and th 200mm low frequency unit has a Diaphatone (polypropylene) diaphragm and high temperature voice coil. The cabinet is vented with a volume of 25 litres.

The filter circuit includes low frequency equalisation for and approximately flat free-field axial response over the range 50Hz to 16kHz, with pre-set adjustment for drive unit sensitivities. When driven at a nominal 50 W the LS5/9 generates maximum sound levels in excess of 100 dB in a typical listening room.

Graham Audio
LS5/9 BBC
LICENSED MONITOR SPEAKERS
(Rosewood)

$ 37,500 $ 22,500
The LS5/9 monitor loudspeaker is manufactured under license from the british broadcasting corporation and is built and tested in accordance with their specifications.

The LS5/9 uses two drive units with a passive crossover and equaliser. The tweeter is a proprietary soft-dome type as used in the LS5/8 and th 200mm low frequency unit has a Diaphatone (polypropylene) diaphragm and high temperature voice coil. The cabinet is vented with a volume of 25 litres.

The filter circuit includes low frequency equalisation for and approximately flat free-field axial response over the range 50Hz to 16kHz, with pre-set adjustment for drive unit sensitivities. When driven at a nominal 50 W the LS5/9 generates maximum sound levels in excess of 100 dB in a typical listening room.

Graham Audio
LS5/9 BBC
LICENSED MONITOR SPEAKERS
(Ebony)

$ 41,500 $ 24,900
The LS5/9 monitor loudspeaker is manufactured under license from the british broadcasting corporation and is built and tested in accordance with their specifications.

The LS5/9 uses two drive units with a passive crossover and equaliser. The tweeter is a proprietary soft-dome type as used in the LS5/8 and th 200mm low frequency unit has a Diaphatone (polypropylene) diaphragm and high temperature voice coil. The cabinet is vented with a volume of 25 litres.

The filter circuit includes low frequency equalisation for and approximately flat free-field axial response over the range 50Hz to 16kHz, with pre-set adjustment for drive unit sensitivities. When driven at a nominal 50 W the LS5/9 generates maximum sound levels in excess of 100 dB in a typical listening room.

Graham Audio
Chartwell LS3/5 BBC
LICENSED MONITOR SPEAKERS
(Cherry)

$ 16,500 $ 9,900
The BBC LS3/5

The LS3/5A is perhaps the best-known of all the BBC's monitor designs. The BBC needed a small monitor that was suitable for critical assessment of programme quality in cramped OB vehicles and control rooms, and nothing suitable was available commercially. At the same time, a separate research project - an investigation into acoustic scaling of studios - had developed a miniature loudspeaker, and it was realised that it could be adapted for monitoring use. After much developement, the original LS3/5 was born.

Initially, 20 units were built in-house for field trials, but upon deciding to build another batch, it became apparent that KEF had altered both of the drive units, and the new units were sufficiently different to the originals to affect the way the loudspeaker measured and sounded. As a result, significant re-engineering work had to be completed by the BBC's Designs Department, and this was such a significant deviation from the original model that the A suffix was added.

The new B110 needed to be decoupled from the baffle in order to prevent an interacton with the cabinet. Next, when fed from the existing crossover, the new HF unit exhibited significant colouration which required modifications to the crossover and the addition of the familiar protective grille and felt pads. The small number of loudspeakers from the original batch were now considered obsolete, and the true LS3/5 was never manufactured commercially.

While the revised LS3/5A sounded very similar to the original, many felt at the time that the original loudspeaker was better. Could this version be re-created today?

Graham Audio presents the ultimate version of the most famous of all the BBC loudspeakers, and is doing so under one of the most cherished names connected with the LS3/5A: Chartwell. The bespoke drive units and crossover networks are developed by Derek Hughes working in conjunction with Volt and Seas loudspeakers to produce a fully licensed loudspeaker using the very finest materials available.

Graham Audio
Chartwell LS3/5 BBC
LICENSED MONITOR SPEAKERS
(Rosewood)

$ 19,500 $ 11,700
The BBC LS3/5

The LS3/5A is perhaps the best-known of all the BBC's monitor designs. The BBC needed a small monitor that was suitable for critical assessment of programme quality in cramped OB vehicles and control rooms, and nothing suitable was available commercially. At the same time, a separate research project - an investigation into acoustic scaling of studios - had developed a miniature loudspeaker, and it was realised that it could be adapted for monitoring use. After much developement, the original LS3/5 was born.

Initially, 20 units were built in-house for field trials, but upon deciding to build another batch, it became apparent that KEF had altered both of the drive units, and the new units were sufficiently different to the originals to affect the way the loudspeaker measured and sounded. As a result, significant re-engineering work had to be completed by the BBC's Designs Department, and this was such a significant deviation from the original model that the A suffix was added.

The new B110 needed to be decoupled from the baffle in order to prevent an interacton with the cabinet. Next, when fed from the existing crossover, the new HF unit exhibited significant colouration which required modifications to the crossover and the addition of the familiar protective grille and felt pads. The small number of loudspeakers from the original batch were now considered obsolete, and the true LS3/5 was never manufactured commercially.

While the revised LS3/5A sounded very similar to the original, many felt at the time that the original loudspeaker was better. Could this version be re-created today?

Graham Audio presents the ultimate version of the most famous of all the BBC loudspeakers, and is doing so under one of the most cherished names connected with the LS3/5A: Chartwell. The bespoke drive units and crossover networks are developed by Derek Hughes working in conjunction with Volt and Seas loudspeakers to produce a fully licensed loudspeaker using the very finest materials available.