Question about Mackie SWA1801 Subwoofer

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MACKIE SWA1801--Sound quality is not same

Hello! About 4 years ago I bought one MACKIE SWA1801 subwoofer in Hungary and 2 years ago I also bought a same sobwoofer from Austria. The problem is: the new one can not working well. If I push up the fader on the mixer the woofer can be make a distorsion but the PEAK LED is not light. And the older subwoofer is working well parallel. I re-assembled the woofers from the wooden boxes. The older woofer was made by RCF the new was made by Eminence. I went to the speaker enginner. (He has 15 years experiance in the woofer world). He said the Eminence woofer is working Ok. The membrane and the coil is not damaged. It seems everithings are OK. I made cross test. I mean I put the Emience woofer in the onother box with the older amplifier. The result is same. The woofer is working well on a little volume but if I push the fader to get a bigger sound the woofer is distorted. I am really sad now because I can not hear my loudspeakers in same volume level. I have to reduce the volume of the right What can I do? Would be buy a RCF woofer to get a same sound quality? I hope you understand my problem. I waiting for your reply! Bye and thanks in advance!

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Re: MACKIE SWA1801--Sound quality is not same

Also had the same problem excepts the membrane on eminence was toren out but the coil was fine. Solution ,buy RCF G400 that is the sub in the original-first 1801s

Posted on Nov 30, 2009

Re: MACKIE SWA1801--Sound quality is not same - Mackie SWA1801 Subwoofer Speakers & Subwoofers

Fanculo zuzu

Posted on Aug 27, 2008

Re: MACKIE SWA1801--Sound quality is not same

First, Try the "defective" woofer in the cabinet that works well to be sure the woofer is OK.
If the woofer sounds good in the other cab, look to the power amplifier board : you have to test 2 fuses and 2 transistors witch are connected to the fuses : a defective transistor let your subwoofer work fine to half power, but distortion appear if you push away...

Posted on Oct 27, 2007

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Re: MACKIE SWA1801--Sound quality is not same

I suggest, go out and buy a heavier duty 18 and replace it.

Posted on Sep 28, 2007

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1 Answer

Both my 1801s gone over xmas..fuse at bottom of board popped when swiched on, replaced fuse but no sound now although LEDs are on?

Fuses blow because of an overload. In this case it will be a shorted semi-conductor. Most likely in the main amp section. Maybe the main amp itself. It might be attached to a heatsink.

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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

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The thermal light comes on on my swa1801 and lose all audio what could be causing this to happen?

make sure its plugged into a large circuit over 30AMP! Turn down the gain on the back. They can't take too much punishment so turn the bass down on the eq. Get a stronger sub

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How do you get to the ac fuse on the SWA1801 ?

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May 13, 2010 | Mackie SWA1801 Subwoofer

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Sep 16, 2008 | Mackie SWA1801 Subwoofer

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Please follow the guide given in the link.. there is a chapter on woofer replacement..

--please give your comments..

have a good day

Jul 01, 2008 | Mackie SWA1801 Subwoofer

10 Answers


  1. I have blown capacitor in my mackie swa1801, Can you send me schematic thanks Georgie.

Feb 24, 2008 | Mackie SWA1801 Subwoofer

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