No it wont burn, and it doesnt as I have owned one of these units in the past.In his kit-set HYPEX no radiator, at 400 watts per channel it will burn.
For comparison: Denon class D, 65 watts per channel, there are 3 radiator
View attachment 45610
And HYPEX NC400, kit-set by the manufacturer, together with the body, a complete solution: 400 watts per channel, the number of radiators - 0
View attachment 45611
It looks suspicious.
I don't see where the IEC is grounded, be very careful, I'd take it to a guy who knows what he's doing and make very sure it's safe--unless, of course, you own a home defibrilator and have a loved one who's trained in how to use it.All good here? Bought this used and I don't really know what I'm looking at
Can someone clarify the significance of the 90kHz bandwidth measurement to the left vs the 22.5kHz measurement to the right here. Why would the measurement to the left not point to significant issues with the amp?
So wouldn't this mean that the amp has a lot of distorsion in the higher frequencies whenever you use more than a few watts of the amp?
No. What makes you think it would? According to that graph, THD + N stays below 0.1% in all situations. Distortion above 10 kHz is not audible anyway. Also keep in mind this is THD+N, not THD - as noted, noise tends to dominate.
Can someone clarify the significance of the 90kHz bandwidth measurement to the left vs the 22.5kHz measurement to the right here. Why would the measurement to the left not point to significant issues with the amp?
What do you mean distortion above 10kHz is not audible?
Tomrrow I will post some REW plots that will help explain.Well I don't know why it would. I'm just asking because I'm interested in understanding the graph. What do you mean distortion above 10kHz is not audible?
It's the way it's plotted, it is misleading. I will show this tomorrow.Great answers, thank you. But then my next question is why does it look like the stuff >20kHz is affecting the audible band 10kHz-20kHz in this case? Or am I not interpreting this correctly?
Edit: So while 0.05% THD at 15kHz or whatever probably would not be of concern. doesn't that mean that the performance might not be as good as you might think reading the initial review of the amp?
It's the way it's plotted, it is misleading. I will show this tomorrow.
So, imo, this is why we should be careful with the parameters of thd tests. Quoting numbers to 90kHz bandwidth is misleading if you want to relate it to audio quality. Seeing low levels of thd above 20kHz is totally irrelevant from an audio quality perspective.
Great answers, thank you. But then my next question is why does it look like the stuff >20kHz is affecting the audible band 10kHz-20kHz in this case? Or am I not interpreting this correctly?
Edit: So while 0.05% THD at 15kHz or whatever probably would not be of concern. doesn't that mean that the performance might not be as good as you might think reading the initial review of the amp?
@March Audio says "totally irrelevant" ......, or maybe he only does not know that high 20kHz distortion reflects in high HF IMD distortion with difference tones and their multiples and also the skirts in the audio band. See below the 20kHz THD and related 19+20kHz IMD.
Is that an actual measurement, or a simulation? What are the actual units/levels?