John Heisz - Speakers and Audio Projects | What Does My New Amp Sound Like and How I Learned Electronics @IBuildIt | Uploaded 1 year ago | Updated 1 hour ago
I'm probably downplaying how much actual electronics knowledge I have, but my point is that I never did gain a proper educated understanding of it from a purely academic point of view.
I can't do the back-of-the-envelop math to describe how a circuit will perform like guys who have that academic training can. But what I can do is take a circuit, sim it to see what it's doing, modify it if I need it to be different in some way and then (and this is the big one) build it and test it in the real world. At this point in history, nearly everything you can imagine has already been designed in the world of audio circuitry, so it's just a matter of adapting what you need to work the way you need it to work.
Now, like I said in the video, if I had my time back I would have put more effort into the theory and math when I was younger. Eager to just make something instead of studying, I didn't realize that I would have been better off in the long run if I had traded the soldering iron and the parts I was about to ruin, for those books I should have read more often.
Onward to the amp and the demonstration of it starting up. No audible turn on thump is a plus, but that may change when the active crossovers are in the signal path. I can add circuitry to mute the amps while the crossovers start up, but that complicates things and I want to wait and see how it works without it.
Hiss and hum are as nonexistent as I would ever need, and remember this is the amp running out in the open with wires going every which way all over the place. That sound clip was recorded with my high quality lav mic just inches from the speaker's tweeter and boosted by 30db on top of that, so if there was any noise you would very easily hear it.
But again this is without the crossovers connected, so subject to change. But I'm pretty sure the crossovers are as noise free (and hum free) as the amps are, so I'm not expecting any issues.
The next phase of the build is to finish the amp boards and test those individually before installing them. That's the tedious and time consuming part, and when that's done I have an equally tedious task to do - finishing and testing the crossover boards and getting those wired in.
You can help support the work I do in making these videos:
Project plans for sale: ibuildit.ca/plans
Join the ibuildit community on Loacals: ibuildit.locals.com
Support this channel on Patreon:
patreon.com/user?u=865843&ty=h
#diyspeakers
#johnheisz
#audio
My "Scrap bin" channel:
youtube.com/c/IBuildItScrapBin
My main channel:
youtube.com/user/jpheisz
Website: ibuildit.ca
Facebook: facebook.com/I-Build-It-258048014240900
Instagram: instagram.com/i_build_it.ca
I'm probably downplaying how much actual electronics knowledge I have, but my point is that I never did gain a proper educated understanding of it from a purely academic point of view.
I can't do the back-of-the-envelop math to describe how a circuit will perform like guys who have that academic training can. But what I can do is take a circuit, sim it to see what it's doing, modify it if I need it to be different in some way and then (and this is the big one) build it and test it in the real world. At this point in history, nearly everything you can imagine has already been designed in the world of audio circuitry, so it's just a matter of adapting what you need to work the way you need it to work.
Now, like I said in the video, if I had my time back I would have put more effort into the theory and math when I was younger. Eager to just make something instead of studying, I didn't realize that I would have been better off in the long run if I had traded the soldering iron and the parts I was about to ruin, for those books I should have read more often.
Onward to the amp and the demonstration of it starting up. No audible turn on thump is a plus, but that may change when the active crossovers are in the signal path. I can add circuitry to mute the amps while the crossovers start up, but that complicates things and I want to wait and see how it works without it.
Hiss and hum are as nonexistent as I would ever need, and remember this is the amp running out in the open with wires going every which way all over the place. That sound clip was recorded with my high quality lav mic just inches from the speaker's tweeter and boosted by 30db on top of that, so if there was any noise you would very easily hear it.
But again this is without the crossovers connected, so subject to change. But I'm pretty sure the crossovers are as noise free (and hum free) as the amps are, so I'm not expecting any issues.
The next phase of the build is to finish the amp boards and test those individually before installing them. That's the tedious and time consuming part, and when that's done I have an equally tedious task to do - finishing and testing the crossover boards and getting those wired in.
You can help support the work I do in making these videos:
Project plans for sale: ibuildit.ca/plans
Join the ibuildit community on Loacals: ibuildit.locals.com
Support this channel on Patreon:
patreon.com/user?u=865843&ty=h
#diyspeakers
#johnheisz
#audio
My "Scrap bin" channel:
youtube.com/c/IBuildItScrapBin
My main channel:
youtube.com/user/jpheisz
Website: ibuildit.ca
Facebook: facebook.com/I-Build-It-258048014240900
Instagram: instagram.com/i_build_it.ca
