Duck's guts... never heard that before. Love the little sayings and idiom's from around the world... "Bob's your uncle" kinda things. Makes me wonder what sorts of things I may say that aren't universally understood the way I understand them.Grant Bunter wrote: ↑Sat Jul 10, 2021 8:15 pm ^ Just remember that amplifiers put out AC volts and current.
You could probably do most of part 1 simply by multiple calculations, and confirm with a half reasonable multimeter.
And, also remember that resistors are used to reduce current flow, adjust signal levels, to divide voltages, and bias active elements.
As they heat up, and approach their limits, resistance may increase or decrease. Immediate variable.
Ducks guts, don't run your tests for a long time. Something will have to give, probably your amp.
How well do you understand passive crossovers? There's shunts to ground and heat I would suspect as immediate losses.
In order for you to quantify results, you need to know exactly what type of crossover you're using.
Someone much smarter than me once said "Energy can neither be created nor destroyed, it can only be transformed to another form of energy".
I only throw this in because, you might find that the expectations don't match the results. Doesn't mean that the expectations are wrong though, because there are intangible or insensate losses, losses you may not be able to or can't identify. But the energy in has to = the energy out. In which ever form it takes...
Anyway, all good points Grant. The resistors I'm looking at using for a load are 100 watt rated, but I'll likely use 10 watts or less as the benchmark to make comparisons. Otherwise, I'd expect them to get very very hot, quickly. I'm certain the amp will be just fine. Maybe I should save my money and just use a Crock Pot as a load instead. LOL (kinda not joking. Kinda am. Kinda not)
I understand the basics of passive crossovers. Certainly not enough to design them without reference to a known design. Perhaps this test will be a learning experience beyond what I expect it to be. That would be great! Figured I'd just use what I have on hand and see what I see. I've got the one's that are ready to go into the WH6's, an SLA Pro that I can open up, as well as a couple of cheapy manufactured tops with blown drivers I could pillage from. Should be interesting. Like you said, some have an attenuation value designed into them. It will be interesting to measure and see the effects of that.
Her name was Émilie du Châtelet, it ultimately became known as The law of conservation of energy... equally as interesting as the Conservation of Mass. I'm sure most of us remember it from a science class or two.Someone much smarter than me once said "Energy can neither be created nor destroyed, it can only be transformed to another form of energy"