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Graham Audio Chartwell Sub3 Passive Subwoofers (pair)

The SUB3 is a sub-woofer designed to work with the Chartwell LS3/5 and LS3/5A from Graham Audio, but it is also applicable to other designs of similar sensitivity and impedance. Designed by Derek Hughes, it employs a novel bass loading technique to achieve extension down to 35Hz in a compact enclosure.


Alignment 4th order bandpass
Finish Real wood veneer
Dimensions (w/h/d) 30cm by 30cm by 34cm
Frequency response 35Hz to 100Hz
Nominal impedance
Sensitivity 84dB SPL (2.83V, 1m)
Recommended amplifier power 30 to 80 watts unclipped programme
Connections Gold-plated binding posts

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