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Luke's basic amplifier tests


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Hey I resemble that remark!  

EDIT: The testing methodology was updated to use a non-reactive load (water heater elements). I purchased 10 of these (Camco 6000w 240v low watt density): https://www.amazon.com/Camco-Screw--Foldb

The output power of a K20 vs an X4 K20:  145 V RMS for less than a second at 2.05 ohms both channels driven Then it limits to 58 V then it goes down to 52.  This means 10.5 kw per channel for

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Small update on the Hypex amps: according to them all amps are tested at the factory and run through a burn-in period there. I suspect that this step was skipped because the amps were on back order already (I waited 2 months to get my amps in mid 2020 due to the pandemic), but of course this is nothing but a speculation from my side right now. I voiced the same thoughts to Hypex and waiting for their take on that. Will keep you posted

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I've recieved an answer and they suspected this phenomenon was caused by bad contact of the speaker connector on the amp. I had the amps stored on a shelf in the warehouse for a few months, so it makes sense that there was some dirt build-up and corrosion-like effects (humidity never exceeds 60% there thou, so it's only minor), since the amps were unpacked. Running a higher current through the connector seems to literally clean it, which reduced the distortion. The more you know..!

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