How To Tell If Your Subwoofer Is Blown - Investigating My Yamaha DXS18XLF

In this video I tear apart my Yamaha DXS18XLF to show how to tell if a subwoofer is blown. We also talk about shifted magnets in drivers.
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[@PlatinumDiscos]

If you hear a rustling sound its loose voice coil turns! It got too hot and the glue melted. Yamaha stuff is pretty bulletproof and 7 year warranty is amazing!

[@LarryMorales77]

Wow I never knew about shifted magnets. This gives me something to share with my assistants on why to be extra careful when handling our equipment. I'd like a keychain if you still have any 😊

[@shashirampukar8287]

Hi buddy thanks for sharing ive never experienced such of a magnet shift but I've heard about this happening in today's manufacturing sector its mass production not quality I've over driven subs were the voice coil had come apart also crunched the fibre material were the coil it coiled on but never had a magnet shift brands that are good is Das / Fane / P Audio / PV not the new JBL series prefer the old and still prefer non powered cabinets over powered because i generally change the driver on the cabinet as i know manufacture will some how try to save cost it's abit costly but in long term. No issues also i use amps twice the power of my speakers

[@ChrisDIYerOklahoma]

From my experience, that pole piece shifted due to abuse of some sort. It is best to let subwoofer cabs cool down after playing them before moving them too. The heat "could" have softened the metal and then when moving them, jarred the pole piece. Looks like that sub handled the power, but overheated to the point of metal fatigue. How much power was going to it? I got two of these on order (backordered)...

[@chasebarton1478]

I think Yamaha would cover that under warranty. If there’s no damage to the box itself I wouldn’t think it could have hit hard enough to shift the magnet. But I could be wrong, like you said maybe the heat loosened the adhesive. I’ve dropped a dxr15 off the top of the sub while wheeling it and it bounced on the sidewalk, got it home and it’s still rocking. I have a couple of the original dxs18’s and never had a problem with them. Interesting to see the driver looks really similar besides the water-resistant coating on the xlf.

[@raycoentertainment4375]

Would transporting them in a normal manner cause a magnet to shift?

[@dancollen8999]

Just came across this exact same issue with a XLF15 sub. For sure in my case though it was not due to heavy impact ( owned / operated by me - never rented) . Furthermore I heard the sub let go mid-gig. It was weird because unlike my experience of properly 'blown' speakers, the sound quality was fine up until around 50%, and then it would turn to shit. I got stuck in there with a knife and sure enough found the shifted magnet. Can't say I'm overly impressed with Yamaha that these units can fail like this.

[@bobosonostage7750]

7 years Yamaha Warranty suport!!!

[@PeterlahayeNl]

question is this speaker measurable with RCF TTS18Aii? Or is this a cheaper one? in sound ?

[@eduardaskaktonis74]

Hi, i have blow up this one too, any body can tell where to oder spare parts for this speaker? couse it not possible to find in simple way? Thank you

[@mr3ggo79]

Dang, I got two of these but the 15 subs, didn't even Cross my mind this can happen, I'll be sure to let my team know, thanks bunch and I hope Yamaha gets back at you with a new driver!

[@TheAngrySoundTech]

How do you like your 15's? I've been thinking about getting a Promaster van instead of having a trailer and if I do that I was thinking I might do 15" subs instead of 18's.

[@mr3ggo79]

@@TheAngrySoundTech they are the real deal, I only hit the limit on these once and that's s when I 1st got them to test them out but to be fair the gigs where i brought these were mainly out door of guest of an average of 60 ppl, plus also avoiding getting a noise complaint. it is a little overkill but boy they look so clean paired with my DZR 12's

[@MrCamz28]

Mr 3ggo I am thinking of getting two of them 15” . Do they hit hard and deep ? I know they are not 18 “ but is it worth to buy ?

[@MrCamz28]

Mr 3ggo I am trying to stay away from big bulky heavy subs. I am a one man Dj

[@mr3ggo79]

@@MrCamz28if you have a lot buisness happening they are worth it but they are heavy and you'll notice it once you're on 3rd gig installing and uninstalling lol but in my opinion they do more than enough, for my bigger gigs I plan to get the 18s in the future

[@juliolopez2829]

I just got these Subs There amazing but can you make a video on how to set the EQ for Hip Hop please I cant figure out the EQ if you can

[@PlatinumDiscos]

The voice coil has come loose due to overheating. You normally hear a rustling sound when you push the cone in. I blew one DxS 18 and Yamaha replaced it under warranty! Remember to register your speakers within 6 months!

[@kingkwasi6303]

Sadly I didn’t and I hv to buy the driver myself

[@tedmich]

Its called the voice coil and it fits into the coil gap. Using just glue on the magnet is super dumb, big bolts are a much better idea. Look at Peavey BW drivers, they aren't the best but they are very tough and well designed (except for the foam plug in the back vent, which melts;)

[@dougtodd9184]

With your experience with your Yamaha 18" subs would you still stay with these subs? If you were looking for a new sub would you stay with Yamaha or maybe consider QSC? Thanks

[@TheAngrySoundTech]

The Yamaha DXS18XLF is the best sub I have owned to date and I've owned quite a few different models including the QSC KW181. I would not recommend these for rental inventory but for your own personal use I would say yes. I have not heard anything better yet.

[@dougtodd9184]

@@TheAngrySoundTech thanks for the reply. I like your reviews.

[@raycoentertainment4375]

I had a dxs15 and dxs18 go bad. I am the only one using them. Luckily Yamaha covered it.

[@TangDynasty1983]

I would recommend the FBT Subline series.

[@TheAngrySoundTech]

You know I have wanted to try FBT subs. Well their speakers in general for quite some time but I can't get them from any of my distributors. It's hard to pay retail for one brand when you can get dealer cost on another brand. But I would really like to try their 15" subline sub.

[@bootlegbay]

Fbt subline are the worst sub ever produced

[@bootlegbay]

​@@TheAngrySoundTechwell yamaha subs are way better than fbt, if you want to try good subs look at outline, qsc, some rcf models are good too, eaw, Martin audio.

[@Jessemakesvids]

What would cause a flapping sound? I've 2 dxs15xlf s doing this....

[@cjcroker]

Are they doing it all the time or just at high volume?

[@stanbailly7856]

Will be interested to know Yamaha’s response!

[@leevalasek9251]

. .. ... me also!

[@ericfischer2852]

Very interested to hear their response

[@TheAngrySoundTech]

I've got the replacement driver. Kind of an interesting story. I'll have to make another video when I put it in. It took a while to get it because there were none in the USA.

[@man3767]

@@TheAngrySoundTech link video please!!

[@MrCamz28]

The magnet moved May be because the sub box was dropped some how. Magnets don’t move easily.

[@TheAngrySoundTech]

I've had half a dozen shifted magnets over the years. Sadly mostly by rental customers. I've been wondering if moving them right after a gig when the magnet is warm makes them easier to shift.

[@playa4lyfe451]

That's why I would never rent my system ever unless I'm there

[@damienlobb85]

Any update on this?

[@TheAngrySoundTech]

Yeah, Yamaha didn't come through with the replacement driver like they said they would. I ended up buying one. I think it was between $400 and $500. I haven't had a chance to put it in yet though. Got rid of my shop due to the downturn in business. It's out in my garage right now and it's -15 so it might be a while until I make the repair video unless I feel like hauling it into my basement.

[@djdamiandoops2200]

You kno how long it was working before

[@FrancescoMilazzo]

someone dropped this sub hard...

[@josealfredfernandes]

as in, played out loud? or threw it purposely during transportation?

[@FrancescoMilazzo]

@@josealfredfernandes purposely or not, it has phisically dropped on the floor IMHO

[@partyloudevents7947]

Everyone who has never thought of doing such a thing the second the knife goes through the basket..😟😮😯😲😳🤯🥴😵⚰

[@TheAngrySoundTech]

Hahaha I think you're spot on with those faces 🤣

[@partyloudevents7947]

@@TheAngrySoundTech soooo have you heard the new qsc ks 118 anddddd does this sub hit harder and lower at volume?

[@TheAngrySoundTech]

I have not. A buddy of mine wants to get them to upgrade his KW181's but he hasn't yet.

[@partyloudevents7947]

@@TheAngrySoundTech convince him to do it so that you can a/b them. Lol

[@Ty-jy9kg]

can you send me a pocket knife please?