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Class D Switching Power Amplifiers and Power D/A conversion

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Old 12th August 2011, 06:29 PM   #2211
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yayyyy well done!
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Old 13th August 2011, 08:08 AM   #2212
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Originally Posted by daholygoat View Post
The sound is good, haven't heard any other boominator so it's hard to compare. Using these piezos: QLM-1005 - Ljudia - Multimedia Hemelektronik Karaoke PA anläggning DJ utrustning Ljus utrustning

I've got the pictures on facebook aswell. Sorry for the low resolution pictures, here's the link to the album on imageshack: ImageShack Album - 20 images
Sorry, but I really can't be bothered opening all the pictures to save them and then upload them, when it takes you a lot less time to just send them to my email and I can upload them

ewald.hansen@gmail.com

PS. Awesome that the sound of it blows you away.. Thats pretty much the experience most of us had when building the Boominator! Its a great project for a budding DIY'er!
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Old 13th August 2011, 10:49 AM   #2213
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Originally Posted by Phaedras View Post
Sorry, but I really can't be bothered opening all the pictures to save them and then upload them, when it takes you a lot less time to just send them to my email and I can upload them

ewald.hansen@gmail.com

PS. Awesome that the sound of it blows you away.. Thats pretty much the experience most of us had when building the Boominator! Its a great project for a budding DIY'er!
Sent you an email!

Everytime I look at the amp I'm out of words, everytime I listen to it I'm amazed. <3

Last edited by daholygoat; 13th August 2011 at 10:56 AM.
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Old 13th August 2011, 12:23 PM   #2214
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Originally Posted by daholygoat View Post
Sent you an email!

Everytime I look at the amp I'm out of words, everytime I listen to it I'm amazed. <3
Awesome

It's now uploaded in the Facebook page
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Old 14th August 2011, 12:48 PM   #2215
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For gluing my piezo's, how would I go about that? Gluing the small removable lid back on all long the back-edge of the piezo? Or do I put glue on the "outside" of the internal part of the piezo?
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Old 15th August 2011, 07:15 AM   #2216
rubennn is offline rubennn  Denmark
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Location: Copenhagen
Quote:
Originally Posted by daholygoat View Post
Only concern I've had so far is when playing rock music, I get the feeling that it sounds a bit dull, what can I say, as if the bass takes over more than the treble. But I think the reason for that is that I'm listening to it indoors right now, and I understand that the design is for outdoor use, the soundwaves reflects against the walls I assume giving me this impression. =)
I get that as well! Indoors it doesn't sound as good as outdoors. But that has something to do with the design. The frequencies at around 100-300 hz are boosted a bit to reproduce more bass and that's probably what you can hear indoors. Outdoors this boost is desired to make up for some of the lost lower frequencies.

So year... it's because it's designed to play outdoors and it does that damn well.

Listening to the boominator indoors can be done at very low volume.. Then I actually think that it sounds pretty good

Also, when I'm throwing an indoor party I usually get my boominator to start the party with music. Just because it can play so extremely loud indoors.
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Wohoo...Boominator 2012
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Old 15th August 2011, 09:03 AM   #2217
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Where should I put the glue on my piezo?

At the red markings effectively sealing the piezo shut.
At the green markings, making the piezo less prone to vibrate because of increased mass
At the end of the piezo, where the blue arrow is pointing?

Or some fourth place?

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Old 15th August 2011, 09:05 AM   #2218
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All 3 places.
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Old 15th August 2011, 09:41 AM   #2219
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All 3 places.
Oh well, that solves it quite nicely. Thanks!
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Old 15th August 2011, 09:43 AM   #2220
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Hi, on my battery I've got this little red thing on my plus pole, wonder what it is and what purpose it serves?
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