Question about Mackie SWA1801 Subwoofer

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Swa 1801 mackie blown capacitor

I have a blown 100v 5600 capacitor in my mackie 1801,where could i get one of these,ive alredy tried rs

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  • Anonymous Oct 08, 2008

    I have the same problem and also can't find any to purchase. Can anyone help?

  • n12sailor Nov 15, 2008

    i have the same problem as well, not been able to find the capacitors any where! help appreciated.

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Mackie 1801 f 1 blow and tip 122 bad

Posted on Mar 05, 2012

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Digikey # 565-2717-ND is where i get them

Posted on Jul 11, 2009

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Took alot of finding but you can get them from Digi-key

Posted on Dec 03, 2008

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My mackie swa 1501 when you plug in no power checked the outlet their is power checked power cord good. what can i do


There are many possibilities, the switch, motherboard, electronics etc. If you are a DIY kind of person and you want to try trouble shooting yourself, you need tools. Better still, take it to a service person/ outlet to proper checks.

Oct 06, 2014 | Mackie SWA1501 Subwoofer

1 Answer

Mackie srm450 v2 no top end.


Check the aspect of the crossover filter for the speakers, inside. Sometimes they fry.

Apr 14, 2014 | Mackie SRM-450 System

1 Answer

Model swa 1801 Fuse 240V 4A burned out ! I replaced it but still get no power (any led stay off) What can it be ?


check for integrity of the main amp and the torroidal transformer.

here is a guide , how to check for transistor

if there is a continuity on the primary terminal of the transformer.

Have a tech to guide you , should you need to DIY.

Sep 17, 2011 | Mackie SWA1801 Subwoofer

1 Answer

Can you tell me what the impedance is of the SWA 1801 speaker?


As per spec sheet states:

Input Impedance = 50K for the Active System


SWA1801 Active Subwoofer Spec Sheet - Mackie



For the passive speaker =4 ohms

Sep 14, 2011 | Mackie SWA1801 Subwoofer

2 Answers

The Amp on Mackie SWA 1501 sparked and burned today


I don't think the amps are available from Mackie any more. You can have it fixed: www.alivesoundcenter.com

Nov 26, 2009 | Mackie SWA1501 Subwoofer

1 Answer

Mackie swa 1801 power amp R7 100 ohm resistor smokes when powered up..


You likely have other parts blown as well, but Q3 (MJE15033) AND/OR r8 (1 OHM/0.5 Watt) are blown. I suspect that Q3 has a base-collector short and you will find several of the output transistors are fried as well Q4, Q5, Q15, Q16. I suspect that the Zeners D14, D25 may be blown.

When restarting this, put a 100 Watt lampin series with teh 120 volt power to limit current and avoid destroying freshly repaired parts due to a few bad ones not found.

Aug 17, 2009 | Mackie SWA1801 Subwoofer

1 Answer

I have a pair of mackie srm 450 and one swa 1501 the bass output in one of the 450s has no sound. i hear sound only from the high frequency part of the speaker


you have one of two problems.1) the woofer is blown(most likely) or 2) the crossover is fried(rare). Take the woofer out and press on the speaker cone(softly). If there is a scratchy feeling when you move it or if it doesn't move at all, you'll either need a new woofer, or get that one reconed.
good luck.

Dec 04, 2008 | Mackie SWA1501 Subwoofer

1 Answer

Signal light stays on, no sound output


T14 is part of the +15v power supply that feeds the input board.
It is actually a transistor.
If this is the only problem on the board, then this transistor could be resoldered back on but you will have to make sure it tests OK and it attaches to the heatsink the same way it came off. ie make sure it is electrically isolated from the heatsink
It seems if there is no fuses blown on the power amp board you might be one of the lucky ones.
In my opinion this amp is a clever design but is under-engineered for robustness

Aug 09, 2008 | Mackie SWA1501 Subwoofer

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