St Petersburg Noise Fest Eleven

Talk about noise music. Reviews, rants, whatever.

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WhiteWarlock
Posts: 2010
Joined: Tue Apr 10, 2018 7:58 am

Re: St Petersburg Noise Fest Eleven

Post by WhiteWarlock » Sun Nov 25, 2018 3:11 pm

rebuild the power amp PCBs... let me think for sec...
they should be basically designed the same way as the mackies..
throw me the model#
you fried some component or the vibration cracked shit solder job somewhere
don't trash those speakers because at very minimum you can use the speakers
or even put in crossovers with TRS jacks for using them with external power amp
seriously doubt you blew out the woofers
if they don't power on the problem is obviously with the poweramp pcb

s.p.i.n.
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Re: St Petersburg Noise Fest Eleven

Post by s.p.i.n. » Sun Nov 25, 2018 5:46 pm


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WhiteWarlock
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Re: St Petersburg Noise Fest Eleven

Post by WhiteWarlock » Sun Nov 25, 2018 6:41 pm

Image
that chip does all the watts on power amp...
saw the picture over @fullcompass and instantly said to myself.... well that's the obvious main suspect!!!
it you drive it too hard they are fucking notorious/infamous pushed long for overheating/melting/frying
inspect the PCB on your powered speakers
if it looks "crispy/toasty" then that needs being replaced
can try digging for part #
TDA7293
will not cost $100+ for full replacement pcb...
more like way under $10 for that component:
https://www.ebay.com/itm/1PCS-TDA7293-A ... :rk:2:pf:0
can you de-solder/solder component?
if traces are fuct/burnt/lifted then you need using some wire for circuit jumpers
you get watt's up...
Image

s.p.i.n.
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Joined: Thu Jul 16, 2009 10:58 am
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Re: St Petersburg Noise Fest Eleven

Post by s.p.i.n. » Mon Nov 26, 2018 7:13 am

It smelled like a trash can fire.. invaluable info though.
The other one..some guy replaces the speaker on youtube
Now I know they can be worked on..1000w of power with a handle on it :chin:

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WhiteWarlock
Posts: 2010
Joined: Tue Apr 10, 2018 7:58 am

Re: St Petersburg Noise Fest Eleven

Post by WhiteWarlock » Mon Nov 26, 2018 7:54 am

Image
Yea have the Mackie THUMP15 versions as extra easy potable PA or floor monitors for real main system
BTW there are reasons you use compressor/limiter in live sound before the power amps
you drove those samson speakers into long prolonged clipping during noise fest and they way overheated...
that could have been prevented with using a rack compressor/limiter ~shrug~ live and learn... next

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