No, I don't care. And I don't care if you care, either. Problem solved.
Thermal Distortion your loudspeaker most likely suffers from it. But do you care?
Thermal Distortion is much more serious than just a maximum power handling limitation or side effect.TD is overlooked by most manufacturers as there is no easy (low cost) solution and TD is audible and measurable most of the time at most power levels. TD is caused by the conductive metal (aluminum, copper, or silver) voice coil getting hotter when you pass electrical energy through it. The more power you pass through it the hotter the metal gets. The hotter the metal gets the more the electrical resistance increase. The efficiency goes down and you need to ram in more and more power for smaller and smaller increases in SPL. It can be the reason you get fatigued while listening. If you are running massive power you are creating more TD in your transducers. But do you care? And is it a reason some prefer horn-loaded designs or SET-powered systems since they have the least problems with TD?
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There is a point (temperature wise) where equipment sounds the best. Most audiophilers don't overheat voice coils in their units. That is a problem KIDS have in sound competition. I have never had a problem with overheating parts. For me it's audiophile 101. "Protect your expensive (or inexpensive) equipment FIRST, everything else is next". I use small planars, you have to really abuse one to have them fail. If they blow I can't imagine what "that" someone's hearing is actually like. LOL no hearing insurance for that one.. Just Nose and Throat, no EARS.. |
@larryi +1 |
Link that works LS_Heat_Dissipation-Thermal_Compression It also affects the XO frequency. See ieLogical the fly... The argument for high efficiency is specious as they have light coils with thin wire, which heats faster with less current. And lighter diaphragms and weaker surrounds which give rise to other issues. And lousy bass from ported boxes... As is the cable nonsense. The effect is so low as to be next to immeasurable. Planars suffer almost not at all. Ditto 'stats. The crossover issue is solved by using active XO, DSP and an amplifier per driver instead of stone age copper coils and foil and goo. Professional audio has been doing this for nearly 100 years! |
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