These specs are similar to my Classic Audio Loudspeakers which can handle 300 watts, are 16 ohms and 98dB (also flat to 20Hz).Tannoy Prestige Gold Reference Canterbury Speakers
Recommended amplifier power 20 - 300 Watts Continuous power handling 150 Watts RMS Peak power handling 600 watt Sensitivity 96 dB (2.83 volt @ 1 m)
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Feb 25 2021
Nominal impedance 8 ohms
The Tannoy is about 8 ohms; its an easy speaker to drive. I've found that speakers this efficient still do benefit from some power; 140 watt is not out of place on a speaker like this.