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<blockquote data-quote="Peter Morris" data-source="post: 148411" data-attributes="member: 652">Re: 60 Degree&nbsp; DIY Mid HiA one volt peak square wave has an RMS value of 1 volt; what we call a one volt sine wave has a 1.414 volt peak and an RMS value of 1. Both will produce the same heat when applied to a load (resistive).Assuming you are using a quality processor it will use RMS detection to calculate the limiting, (this is what the Lake does) the shape or crest factor does not matter for determining the amount of heat the speaker is subject to.There are basically two failure modes for a speaker, heat and exceeding the mechanical limits of the speakers design. It’s also important that any of the peaks that the RMS limiting functions permit, do not allow the mechanical limits to be exceeded and break the speaker. The Lake has peak limiting to take care of that.There is also another fact you should take into account. If you continually driver a speaker close to its limit it won’t fail straight away but it won’t last long and you may suffer some form of early fatigue failure.I do however think that a practical implementation is as you and Bennett suggested … about 3 dB less than the limits.</blockquote>

[QUOTE="Peter Morris, post: 148411, member: 652"] Re: 60 Degree DIY Mid Hi A one volt peak square wave has an RMS value of 1 volt; what we call a one volt sine wave has a 1.414 volt peak and an RMS value of 1. Both will produce the same heat when applied to a load (resistive). Assuming you are using a quality processor it will use RMS detection to calculate the limiting, (this is what the Lake does) the shape or crest factor does not matter for determining the amount of heat the speaker is subject to. There are basically two failure modes for a speaker, heat and exceeding the mechanical limits of the speakers design. It’s also important that any of the peaks that the RMS limiting functions permit, do not allow the mechanical limits to be exceeded and break the speaker. The Lake has peak limiting to take care of that. There is also another fact you should take into account. If you continually driver a speaker close to its limit it won’t fail straight away but it won’t last long and you may suffer some form of early fatigue failure. I do however think that a practical implementation is as you and Bennett suggested … about 3 dB less than the limits. [/QUOTE]

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