Question about Mackie SWA1501 Subwoofer

1 Answer

Shorting out I run four 450's (daisy chained) and my 1501. At times, when the level is raised or gets "bassy", one of the 450's drops out. I mess with the cable and it comes back on. I changed cables, had the 450's checked, had the 1501 checked, but the center says the speakers run fine. Is it something that they could be missing or can I describe it to them a different way. I feel like doing a gig and inviting the service guy so that he can see what I'm talking about.

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

For starters, you need to find out if it's the same speaker cutting out each time. Next time it stops, chuck a bit of tape on it so you know which one it is.

Also, try to eliminate the obvious problems, like the cables. The easiest way to do this is buy all new cables, but that's expensive! If you're running all 4 in mono, daisy chaining the signal between each, then you can work out dependant on where the faulty speaker is in the chain. The signal will go in this order; Sub - spk1 - spk2 - spk3 - spk4.

If spk2 stops working, and 3 & 4 keep working, then the signal is obviously getting through, and you can pretty much rule out a cabling problem. If spk4 cuts out, try changing the order so you can eliminate the cable problem.

I've had 415's cut out in the past when they have been too hot. This is because they're being driven too hard, often with too much low-end being driven. A few simple tings to check;

make sure all the 415's are running at the same volume, on the gain pot on the back of the speakers. If you have the volume up high on 1 speaker, it will obviously be working harder than the rest, and is more likely to over-heat!

Check that you're using the HP filtered output from the sub. It's got a built in crossover which removes the bass signal. This means that the sub only works on making the bass sound, and the 415's only have to make the mid-high sound. (sorry if this is all **** you know already!) It basically allows them to work more efficiently. If you're running the full-range output from the sub, it's still sending lots of bass signal to the 415's, which makes them work harder, and they're more likely to overheat. When they do overheat, a thermal switch cuts the power, and the speaker stops working until it cools down sufficiently. That would explain why the speaker goes off, and after you've fiddled with the cables for a while, it comes back on.

It's a while since I've used 415's, but from memory they have a basic eq curve, which is selectable using a switch on the back panel. I'm pretty sure it cuts the mids only, and doesn't actually bost the bass, but it might be worth checking to see if the problematic speaker has this switch pressed, and the others dont.

Hopefully there's something in there which might help!

Posted on Nov 08, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Had timing chain kit redone on my 06 ford freestyle started it after theydid it and it sounds like really bad did they mess up timing

Generally, timing chains will last the life of the vehicle..that said, replacing one is an intense job which is best left to the pros. Check your oil level, also, remove the oil cap and have a look at the chain with Engine running..notice any broken or damaged links.

Personally, I think more likely the timing is off or the firing order is incorrect. Also bad coil pack/s or incorrect spark plugs?? Hope some of this helps..

Jan 25, 2018 | 2006 Ford Freestyle

2 Answers

Mackie srm450 amplifier low sound

are you running a sub, daisy chained to it? are they connected to each, just have one, two, four? are you hooked up like in the pic?


Jan 03, 2017 | Mackie Audio Players & Recorders

1 Answer

How to fix extra speakers to peavy xr 886 and get the same power to each sperkers not just daisy chain each extra speakers

This powered mixer can only drive 4 ohms a channel...two eight ohm speaker cabinets daisy-chained makes one four ohm load. Ampifier wattage output ratings are usually higher driving four ohms than eight BUT never drive a lower rating than advertised by the manufacturer.

If you need more power than the mixer can provide, connect the "Master Out" or "Mono Out" connections (next to the speaker output jacks) to an external power amp. Connect additional speakers to this external amp and you're done.

Nov 12, 2013 | Audio Players & Recorders

1 Answer

I'm a guitar player, never had to mess with the PA system. I needed to come up with a monitor system to work with a non powered mixer used for powered mains. I can't afford good powered speakers, so I...

This mixer will run 2 8 ohm cabinets per side, if this is an older unit, it has only one NL2/combo jack per channel....with the button on the front panel in the Main Monitor position you can run 2 main cabinets and 2 monitor cabinets, you will have to daisy chain your speakers.All speakers powered from the back of the unit must be passive, no powered speakers.....if you want to use this head just to run moitors and run a pair of powered mains then connect the jack on the front that says main out to input of your powered speakers, hopefully your powered speakers can be daisy chained at low level, then if you want to use the 8600 to power only monitors, get a 1/4 in y cable and plug it into monitor out on the front of the mixer and then plug it into PA 1 and PA 2 to the right there and both sides will now be the monitor mix from this mixer and it will run 2 speakers per side, as long as the cabinets are 8 ohms.

Oct 09, 2013 | Peavey XR Series XR8600 Powered Mixer

1 Answer

What is the actual watts per channel @ 8-ohms and 4-ohms on the Behringer PMP3000?

Those specs would be right - I have this same board but the amp was fried by a previous owner. I pulled the amp board out and tossed it and use the mixer now to drive an external amp. Great board. This amp is rated at 1200W "peak", bridged into an 8ohm load. That would equate to about 900W RMS bridged into 8ohm or 450 per side into 4ohm loads per side. You can't daisy chain all 4 speakers....impedance would be too low. You can run two of your 8ohm speakers per side - that results in a 4ohm load per side for the amp. That would give you amp delivery of 450W per side. Your speakers are rated to handle more than that so you're fine. For the could run one speaker per side no problem....just lower power output.

Aug 16, 2012 | Behringer Pmp3000 16 Channel Audio Mixer

1 Answer

I have a program set to strobe all four of my slim pars at once. The two on the right are not strobing but the two on the left are. I have my dmx input running in from the right daisy chaining to the...

Among other things to check is using a terminating resistor at the end of the chain if the chain runs a distance. Read "DMX termination"

Swap the units to verify each is OK or re-route the daisy chain..

Feb 23, 2011 | Chauvet SLIM PAR 64 LED Par Can

1 Answer


Sounds like a fuel problem, too rich in the midrange. You said that it idles good but I'd still check the float level. If that's right, check the position of the needle. The needle has about four or five grooves in the top end of it. There is a small clip that clips into one of these slots. By putting the clip in a slot closer to the pointed end of the needle, you raise the needle making the midrange mixture richer. Moving the clip to a slot nearer the blount end of the needle, leaner mixture. Your needle should have the clip in the middle slot if there are five slots. The second or third slot if there are four. Make sure the needle is installed correctly in the slide so that it does not not raise up. If you get it too lean, it will start to surge when you're trying to cruise.

Nov 02, 2009 | 2004 Yamaha WR 450 F

1 Answer

1997 vitara v6 2ltr service manual

From Suzuki? This wouldn't be a fun job in-car as, for starters,the inlet manifold needs to be raised so the rocker covers can be removed! The manifold can only be raised so far, then the throttle body hits the firewall - so you may like to remove that as well. Then the camshafts have to be removed (all 4). This means messing with the timing chains - there are 3, but you'll only have to mess with 2. Remember, you'll probably want to still be able to turn the motor over by hand so that the cylinder you're working on is at BDC when you put the compressed air in to keep the valves shut before removing the valve springs. Removing the timing cover will solve any possibility of timing issues because of dropped chains, but the 2 studs in the timing cover for locating the sump will have to be removed. I would recommend replacing all tensioners and chains if you get this far. I would suggest this job will be a lot easier by removing the cylinder heads then doing the stem seals out-of-car.

Jul 09, 2009 | Suzuki Vitara Cars & Trucks

1 Answer

For the Mitel Superset 420, how to daisy chain phones? I see a jack on the back in the middle with what looks like an icon that means you can link it with another phone. Is that correct and what type of...

That Jack is for a Direct Station Selection/ Busy Lamp Field ( DSS/BLF ) connection not to daisy chain phones together. It is an RJ11 connection but uses a six conductor cord instead of a four conductor. Hope this answeres your question.

Jul 17, 2008 | Mitel Lands Phones

Not finding what you are looking for?
Mackie SWA1501 Subwoofer Logo

194 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mackie Audio Players & Recorders Experts


Level 3 Expert

5444 Answers

Brad Brown

Level 3 Expert

17147 Answers


Level 3 Expert

79847 Answers

Are you a Mackie Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides