Question about Mackie SWA1801 Subwoofer

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How to open SWA1801Z

I need to replace the speaker on a SWA1801Z. Does anyone know how to open the enclosure?

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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

Posted on Jul 01, 2008

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Yes the woofer and tweeter can be replaced but the woofer needs a recone kit to repair as the whole speaker cannot be replaced without replacing half of the speaker enclosure.... call JBL pro or a service center for help.

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If there are no screws, you have an enclosure that is
glued. In that case I would use a table saw to cut all four sides as close to the backs inside edge as you can. When you need to put it back together use a drill and make pilot holes and then use long thin wood screws. If the case is plastic, measure it and get wood for new ones.

May 11, 2013 | B&W 685 Speaker

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Replace subwoofer

If the speaker enclosure is wood, and there are NO screws, you need to use a table saw to cut the back off.

Apr 30, 2013 | Yamaha YST-SW205 Subwoofer

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How to open the enclosure???

Many speaker enclosures are glued together - this helps prevent vibrations of cabinet panels. Many panels are made of particle board, covered with a simple veneer. Disassembling the enclosure would likely be destructive.

The best way in, turns out to be via the largest driver - or woofer. The woofer is the largest speaker in the cabinet and is usually held in place by 4 screws. It can be removed without (or with only minimal) damage to the cabinet after removal of the screws with a screwdriver. Use of a battery operated screwdriver is discouraged due to the possibility of stripping the holes in the particle board. Once the screws are out, you might need to gently pry the outer edge of the woofer's metal frame from the cabinet with a small screwdriver to separate them.

Be prepared for the speaker to come spilling out of the cabinet. Wires on the speaker - if to be disconnected - should labeled as to which terminal they are connected - so the speaker will be in phase when reconnected. All wires to be disconnected should be labeled first! You may find filler material (looks like a thick fiberglass blanket) and crossover components (coils & capacitors) along with the additional wires between the crossover components and other speakers in the cabinet. Be careful to not accidentally disconnect wires from the internal components if you need to remove the filler material.

These are tips for opening most speaker cabinets - yours may differ slightly. Hopefully, this helps. Please rate this reply - thanks!

Dec 13, 2010 | KLH 915 Main / Stereo Speaker

1 Answer

After turning on the woofer for an hour it starts clicking. what can be the problem?

I have a PS-12, and I had the exact same problem. The best I can tell, the amp is overheating. It's housed in what is more or less an airtight plastic enclosure, so there is no efficient way for heat to leave the amp as the electronic components heat up.
I don't know how old your PS-12 is, but mine started to click after about four years of reliable use. Perhaps older amps are more sensitive to overheating than when they're new.

Anyways, Here's how to fix it yourself, if you're feeling up to the task:
Disconnect the sub from your system and the wall. Remove the amp from the back of the unit (ten philips head wood screws around the edge of the control panel). Disconnect the amp from the speaker itself.
Next, remove the amp from its asphyxiating plastic enclosure (2 smaller philips head machine screws hold it on, one to the right of the LED power indicator, the other to the left of the power cord.
Now, the fun part. Take the empty plastic enclosure, and turn it into swiss cheese with a drill. I would recommend a large drill bit and as many holes as you feel comfortable with, because the whole point is to get as much airflow across the amp as possible. If you've got better tools to cut holes in the enclosure, feel free. Whatever it takes to open it up. Be careful of the speaker wire as you go.
As for a source of airflow, the speaker actually provides that itself. Just reassemble the whole mess, and your speaker should stop clicking.
If the amp continues to click, consider more holes. Oh, and don't worry if you crack the enclosure a little as you drill, it doesn't serve much of a functional or structural purpose, and you won't see the cracks again anyways. As long as you can screw it back onto the amp, you'll be fine.

Jan 30, 2010 | Infinity PS-12 Subwoofer

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Modus one six speaker not working properly

Hi. If you have an digital multimeter to hand you could always drop the drive unit (the metalwork with the paper cone) out from the enclosure and make sure the resistance of the voice coil is between 4-16 ohms. If there is no reading then the voice coil could be open circuit and the whole drive unit will need to be replaced. If the others rattle check the mounting screws are not slackened off. Especially if you have been driving them hard!

Dec 23, 2008 | Wharfedale Modus One-Six Speaker

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Karaoke speaker,no woofer or midrange working, only tweeter

Hi, it's probably that the 8" woofer and the midrange of the "amped" enclosure is open. One way to test is to remove just one wire from the inside of the enclosure to the woofer or midrange in question and with the use of a continuity tester (or a VOM), check for the resistance of the coil of each the 2 speakers. Both should read anywhere from 4-8 ohms, if there's no reading (VOM needle will not move) then the coil(s) are open. In the absence of a tester, a single AAA or AA battery would do (pls. some would argue that this is not a sound practice, however this should be enough for you to be able to determine the condition of the coil(s)). With the use of the battery and a single short length of electrical wire, apply power from the battery to the terminals of the speaker, if the cone moves, then chances are it is good, if they don't then you would have to replace it. Am not sure if available in your area, but there are some trained people who can rewind the coil should a replacement speaker be not readily available. Hope this be of help. Please let us know how things turn up. Regards.

Apr 15, 2007 | Vocopro PV420 Main / Stereo Speaker

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