Following the success of the Graham Audio LS3/5 & LS5/9, we decided to develop a speaker that had the smoothness of both with the extension and power handling of the 5/9, but in a more compact cabinet.
The result is the Chartwell LS6, designed by Derek Hughes it is a 17 litre speaker using a custom built long throw 18cm Polypropylene driver, giving us similar LF power handling as the LS5/9, together with the 19mm tweeter that has been so well regarded in the LS3/5.
A large rear mounted port give deep effortless bass, while keeping the front aspect compact so as to blend easily into typical domestic environments.
A sophisticated crossover network blends the units and equalises the overall response for optimum performance in free space. A switch on the front baffle adjusts the tweeter level to +1 or +2dB. This can be useful for situations where the listening position is off axis to restore the response to optimum.
As with the rest of the Graham Audio range, 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 held in place by fabric provides 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.
Specification of LS6 speakers
Amplifier Power Sensitivity Maximum Output Nominal Impedance Response Dimensions
HF level Switch Bass/Midrange
2 way reflex loading
Thinwall damped construction
50 – 150 watts unclipped program 87dB/2.83v/1m
Over 100dB for a pair at 2m
37h x 24w x 26d (not including terminals) 9.5 kg
0, +1, +2dB
Long throw 165mm Polypropylene 19mm dome tweeter