Graham · Subwoofers

Chartwell Sub 6

The Chartwell Sub 6 is a passive subwoofer by Derek Hughes, built to sit under the Graham LS3/5 and LS3/5A.

fig. 01 · subwoofers

Chartwell Sub 6

Graham Chartwell Sub 6
fig. 01 · Chartwell Sub 6photograph · Graham

From Graham

The Sub 6 is a passive subwoofer built to sit under the LS3/5 and LS3/5A, and it suits other speakers of similar sensitivity and impedance. The port fires forward. Rear connections take the amplifier input and pass output on to the main speakers, and the crossover uses air-core inductors.

Specifications

Alignment4th order Bandpass
Dimensions (w/h/d)19cm by 60cm by 27cm
Frequency response35Hz to 100Hz (Crossover point to main speakers)
Nominal impedance8Ω
Sensitivity84dB (1w, 1m)
ConnectionsGold Plated Terminals
Recommended amplifier power30 to 80 watts
NoteCrossing over from the LS3/5 at 120Hz increases the combined system power handling as if relieves the main speaker of signal input at lower frequencies.