Question about Mackie SRM-450 System
Since this is a bi-amplified speaker suspect that the Woofer amp got fried, unless you check the speaker impedance and there's none, let me know if i can help more.
Posted on Nov 08, 2013
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Posted on Jan 02, 2017
does your swa1501 get hot just being switched on ?
sounds like your output transistors breaking down or your dc to dc rectifier is shorting this would dumping high voltage to the speaker. I guess your speaker coil is burnt . check Q4,Q5,Q7,Q12.Q14,Q15,Q17 and Q18 these are all mosfet transistors that commonly break down..
Posted on Oct 11, 2009
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