Why do some manufacturers make the amplifier produce more power than the speakers can handle. I have had countless stereos and Bluetooth speakers destroy themselves because of to much power at high volume. But I have had lots of other stereos and Bluetooth speakers that sound amazing and crystal clear at full volume so I know it’s possible. Why would they even bother making something that will destroy itself if you listen to loud to long. Planned obsolescence. Manufacturer hoping to sell more?
In: Engineering
The amplifier cannot know what current / power the speakers can handle. At best they can measure the electric properties, which on its own are not enough.
If anything I would blame the speakers, as it is much easier to make a simple protection circuit than to magically guess the max power rating of another device.
The input signal to speakers can have a fairly large range from a relaxed conversation to mastered pop music, to high frequency test tones like the infamous udial sample. More amplification allows you to turn up the conversation more. You can usually hear if speakers are distorting and dial the volume back. If the range was limited to the worst case scenario, the owner of such speakers would be left complaining that the recording is not produced loud enough. This is the case today where portable audio players are limited to avoid hearing damage, based on the level of contemporary pop music.
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