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Driver TS Parameters: Re (DC Resistance) & Le (Voice Coil Inductance)

Re is the DC resistance of the loudspeaker’s voice coil, you should not confuse this with impedance, although related, the two are different. Measuring the resistance of a speaker with a multi-meter, the reading you get across the terminals should be close to the manufacturer’s specified Re, it’s not unusual to get a minor variation […]

Driver TS Parameters: Mmd & Mms

If you’re comparing drivers in detail, it will help to understand some of the more intricate TS Parameters, as over time it will help you differentiate between different drivers and identify which applications they are more suited for. For example, for a high power 18″ horn loaded bass bin, you will probably be looking for […]

Driver TS Parameters: Xmax

Possibly one of the most misunderstood parameters, most people know Xmax concerns driver excursion, but dont really know  precisely what it means, and it is probably the name that confuses people, as it is slightly misleading. We’re used to  letters X and Y denoting dimensions, and in this case, X does relate to a dimension, it’s to do with the […]

Power Compression

When selecting speakers, it’s common for people to just look at maximum power handling, and many manufacturers make a point of specifying seemingly unbelievable power handling capacity of 1000W or more. Its quite rare for manufacturers to specify power compression though, and it seems to be often overlooked by system designers. It seems that loudspeakers to […]