The amp must have some detection circuitry inside to measure and analyze voltage and current waveforms at the output side. When a speaker is pushed to its limit, the voice coil will face non-linear mechanical resistance, which can be reflected by subtle change of its impedance and backward electromotive force. By using some sort of algorithm (AI machine learning can work, but that's certainly overkill for this task) a microcomputer inside the amplifier can recognize this pattern of parametric change and command the preamp circuit to bring down the output volume into safety margins
That was really cool tech, but I still wanted it to blow up. Can you mod it to blow up on purpose? You already proved it won't pop by accident... Just drop an inline fuse to compensate for the VSWR after it pops so you don't hurt your amp....would be fun? Right? LOL Love your videos.
@@devinlsheets_alphasound :p Fair. If I could afford to pay to destroy something, I'm starting with a snow globe. I've wanted to since I watched Zombieland. I didn't look up the price tag on your speaker, so I'm not even sure the range. Probably expensive.
This only works with nexo Amps. But there are other manufacturers that make dedicated Amps for dedicated Speakers for example L accustics. But you can and should not mix these Amps and Speakers, for example powering an L accustics with an Nexo Amp.
I've only set up l-acoustics and D&B amps, but I suppose it's the same with NEXO. You load the preset for the speaker that's hooked up to it and if you load the wrong preset that's on you. Technically the amp could do an impedance sweep, match that to a database and auto-detect the speaker and even detect defects in the box connected, but I'm not sure if that exists yet. Would be a cool feature for sure and it's really just a software thing (the additional hardware needed to do this should be present in most higher end dsp amps already)
@@danveneri I'm sorry but I don't understand how your comment relates to the previous discussion. We were talking about the amp automatically detecting which specific speak is hooked up to it (e.g. a small 6" monitor or a double 18 sub box).
How the amp understands that the speaker is being overloaded? Some voltage and current measures or something? Do you specify the speaker model in the amp menu?
Hello is the old nxamp 4x4 mk1 first version protecting the same way?? Because i lost some ps15 phl speakers and 1 ps15 horn diaphragm while i was playing them with nxamp4x4 mk1 and i cant understand why the amp didnt protect them…
I don’t think the original amps had as good of protection to be honest, but I haven’t tested them thoroughly. Also, the older series speakers might not have had as robust drivers, as driver technology has radically increased over the past decade.
@@devinlsheets_alphasound thanks for your answer my friend… yeah but i compared A/B tests with nexo ps15 versus ps15r2 and versus P15 and i found out that my ears and everyones else in the room liked a lot more the old ps15 all played by the same nxamp4x4 mk1 version mono sound and wav track of thanks to you ( boz scag ) and no sactuary here ( chris jones ) of course the p15 could handle extremely more db but lose the quality of sound..
