12v system finally coming together + Piezos?

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   I have finally almost finished my boombox, just need to wire it up. spent the last few days varnishing. pictures to follow tomorrow :D
I was just wondering about wiring up the piezos. I have two 22ohm resistors and four piezos.

If i go from each amp channel in parallel with the driver to the resistor then split into two from there to two piezos (wired in parallel) then back together than back to the other side of the driver.

Sorry if i have not explained it very well haha.

will this work or will i be better off putting the piezos in series after the resistor? i am guessing it will just get quieter but I can't seem t find how it will affect the frequencies going through the piezos.

will i be better off getting higher resistance resistors to cut off more high frequencies off the top?

cheers

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immortal Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Location: Sheffield Status: Offline Points: 460	Post Options Post Reply Quote immortal Report Post Thanks(0) Quote Reply Topic: 12v system finally coming together + Piezos? Posted: 10 April 2014 at 12:15am
	I have finally almost finished my boombox, just need to wire it up. spent the last few days varnishing. pictures to follow tomorrow :D I was just wondering about wiring up the piezos. I have two 22ohm resistors and four piezos. If i go from each amp channel in parallel with the driver to the resistor then split into two from there to two piezos (wired in parallel) then back together than back to the other side of the driver. Sorry if i have not explained it very well haha. will this work or will i be better off putting the piezos in series after the resistor? i am guessing it will just get quieter but I can't seem t find how it will affect the frequencies going through the piezos. will i be better off getting higher resistance resistors to cut off more high frequencies off the top? cheers
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immortal Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Location: Sheffield Status: Offline Points: 460	Post Options Post Reply Quote immortal Report Post Thanks(0) Quote Reply Posted: 11 April 2014 at 9:29am
	finally finished it and put it together last night, took a while and an injury from the soldering iron :S taking it to the british juggling convention tonight for its first outing :D
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audiomik Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 06 April 2010 Location: Bath, UK Status: Offline Points: 2962	Post Options Post Reply Quote audiomik Report Post Thanks(0) Quote Reply Posted: 11 April 2014 at 10:55am
	Re: "will i be better off getting higher resistance resistors to cut off more high frequencies off the top?" Resistors alone won't act as filters to have only higher frequencies handled by Piezos. They may act as attenuators. There are a number of threads about Piezos and filters on here which will answer your question though - do a search for "piezo" Mik
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immortal Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 07 January 2013 Location: Sheffield Status: Offline Points: 460	Post Options Post Reply Quote immortal Report Post Thanks(0) Quote Reply Posted: 11 April 2014 at 11:52am
	I had a look around but I couldn't find anything about what I wanted. It was suggested having a resistor of about 50ohm per piezo but I already had two 22ohm resistors for 4 piezos. I wired them two in parallel after each resistor. I couldn't find much on how it will attenuate the high end though, sounds pretty good though and isn't very harsh. probably needed to search more about electronics. Will get some better pictures of it this weekend, hopefully in the sunshine :D
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app Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 December 2013 Location: Finland Status: Offline Points: 2435	Post Options Post Reply Quote app Report Post Thanks(0) Quote Reply Posted: 11 April 2014 at 12:22pm
	^Nice!Get some video too! Have you checked the diyaudio boominator thread? http://www.diyaudio.com/forums/class-d/104402-boominator-another-stab-ultimate-party-machine.html I bet theres something about the piezos...
	"what!?"