London is the capital city of England. It is the most populous city in the United Kingdom, with a metropolitan area of over 13 million inhabitants.
Standing on the River Thames, London has been a major settlement for two millennia, its history going back to its founding by the Romans, who named it Londinium.
Power RMS / max. P 150 / 300 Watts Impedance Z 4 Ω DC resistance Re 3.4 Ω Resonance frequency Fs 54 Hz Mechanical Q factor Qms 11.1 Electrical Q factor Qes 0.55 Total Q factor Qts 0.53 Compliance Cms 490 µm/N Equivalent air volume Vas 12.4 L Force factor B*I 6.1 Tm Efficiency 1 W / 1 m SPL 88 dB Cone area Sd 135 cm² Moving mass Mms 17.8 g Cone material Sisal with elastomer structural damping Mechanical resistance Rms 0.54 kg/s Voice coil diameter ø 37 mm Voice coil winding height 12 mm Max. linear excursion Xmax +/- 3 mm Outer diameter ø 166 mm / 6.54″ Installation diameter ø 145 mm / 5.71″ Installation depth 67 mm / 2.64″
Recommended enclosure volumes Sealed box Net volume 8 L Lower limiting frequency (-3dB) 68 Hz
Vented box Net volume 15 L Port diameter ø 60 mm / 2.36″ Port area 28 cm² Port length 16 cm / 6.30″ Port tuning frequency Fb 49 Hz Lower limiting frequency (-3dB) 52 Hz
