Question about M-Audio Studiophile BX8a Speaker

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M-Audio BX8a speaker problem.

Im not quite sure but I think the voice coil is bad. Because when i push my woofer in. It catches and i start hearing sound. When i let go it stops. The tweeter works just fine. Is it really the coil or something else? and where can i get parts for this?

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Posted on Jan 02, 2017

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robotek
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SOURCE: woofer not working on new bx8a speaker

Hi ermo

Your new speakers are BiAmped, and if a woofer is not working then it is probably a fault in the amp or connection for that woofer, or the the woofer itself has a problem. If they are brand new, I suggest you take it back to purchase point to get sorted out. There is nothing that you can do that will NOT void your warranty. If you do not have a warranty, then get back to me here and we can work through the problem. Cheers

regards
Graeme

Posted on May 25, 2008

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robotek
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SOURCE: M-AUDIO STUDIOPHILE BX8a (woofer)

Hi David

The fault may be the bass driver itself or the Low Frequency power amp built into the speaker box. hard to determine which it is because it is intermittent. There are a couple of things to try. when the fault occurs.

  1. just lightly touch the cone on the bass driver see what happens. If it fires up again, it has failed soldering on the spider wire connections from the terminals to the cone. This can be repaired by a decent sound guy the does speakers, or a specialist near you that can be found easily enough. A new replacement driver is also an immediate option if you don't mind spending the bucks.
  2. if the above didn't work, to prove to yourself where the problem may lay, you could swap the bass drivers from one box to the other and see if the fault follows the driver, or remains with the speaker box. If the electronics are faulty, unless you have some decent experience with soldering and fault finding, you may be best to get it to a repair guy,
If you cant get it sorted, please provide me with your location(not address:)) and I will be able to locate a decent guy that knows what he is doing for you. Cheers

regards
robotek

Posted on Sep 06, 2008

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Hi i have a set of bx8a and one of them when it is on the woofer pumps out uncontrollable even when no music is playing please help


If the woofer is motor boating....going in and out, like a flutter,
likely a power supply issue on the power amp board, in back of the speaker. This would need to be repaired. Since these are powered speakers, if for example, a power supply capacitor were bad,
it can do that. If under warrantee, find an authorized repair center near you. Contact manufacturer.
Hope this helps.

Nov 26, 2014 | M-Audio Bx8a Deluxe Power Studio Monitors...

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I have a pair of m-audio bx8a deluxe monitor speakers. I need to know how hook my iPhone up to them or just one of them. I tried using a adaptor and plugging into the trs input but the music is distorted....


The conection you made is not quite right. This is because the TRS (and the XLR) connectors at the back of the BX8a are for balanced signal. You have to use either this cable or connect both middle and ground point of the TRS connector at the ground. In other words the ground from the ipod must be connected with ground AND middle ring of both BX8a and the ring of the ipod must be connected with on BX8a TPS tip and the tip of the ipod must be connected with the other BX8a tip. I don't know if you are familiar with soldering connectors, in this case post me back to make a schematic for you with the connections.

In case of a problem or clarification or further details needed, don't hesitate to post me a reply before rejecting my answer.
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Feb 17, 2011 | M-Audio Studiophile BX8a Speaker

1 Answer

I have a subwoofer in my truck. 2 speakers in a box with an amp. One of the subs blew to a song that just came on. the volume was high. Sounds distorted. Any way to fix?


Sounds like the voice coil of that woofer overheated and melted while it was turned up too far. Now that area rubs on the magnet or pole piece internally and makes noise.

No you generally can't fix that except for a few high end woofer brands that have field replaceable voice coils that you can buy. Most subwoofers physically bottom out and sounds really bad before experiencing thermal damage like that. Sounding bad is a warning sign that it's being overloaded.

Note that woofers have 2 different types of overload conditions that can cause damage.
1. Over excursion from deep bass that moves the woofer cone too far and damages the suspension. This is clearly audible. Proper box design and user knowledge will prevent this.

2. Thermal limit. This is the published power rating that the voice coil can absorb without damage. Things can melt or fail entirely if this is exceeded.

Either of those issues can cause the noise you are hearing. Without a more detailed description of what happened or how it sounds before, during and after this is much detail as I can provide. But.. move the woofer some by hand, do it evenly pushing straight down evenly on both sides, not too far, go about half way through it's normal movement. If it clearly rubs and makes noise internally then the voice coil is damaged or if has some debris stuck in there. Most woofer are not serviceable.

There are many other factors that affect the longevity of the woofer, such as
  • Ambient temperature too high
  • Limited air flow has inadequate woofer cooling
  • UV exposure can make the surround material brittle
  • Proper enclosure design is needed to acoustically and physically supports the woofer to prevent bottoming out, particularly at the system resonant frequency.
  • Amplifier distortion can kill speakers even when rated far below the woofers max wattage.


Nov 28, 2010 | Sony XS-AW200 Car Subwoofer

1 Answer

JL Stealthbox 10w3 Subwoofer just shut off no sign of problems just quit working im not stressing it out by operating it above its limits its being powered by a JL HD900/5 AMP im concerned it might be...


If this woofer is a dual voice coil woofer and if you are running your amp bridged or in mono would suggest try wiring your woofer in series.But before Idid anything I would unhook the woofer from the amp and pop it with a battery to make sure your woofer is still connected.

Sep 05, 2010 | Jl Audio 10W3v2 Car Subwoofer

1 Answer

Can a kicker cvr be fixed if it is blown if so how


Speaker lesson here. For space and time, I'll not get into certain nomenclature. Working from top to bottom, you have the cone, rubber surround, basket, spider, voic coil former, voice coil, and the magnet. The binding posts are connected to the tensil leads which connect to the spider and the voice coil. As the woofer is positively + and negatively - charged, it creates a magnetic field which moves the woofer up and down. There is a small gap between the magnet and the voice coil and former that's called a magnetic gap. This gap is what helps the speaker to move up and down, and creates the Xmax. The Xmax of the woofer is the maximum linear excursion the woofer can travel without causing permanent damage. With a blown speaker, normally the voice coil and voice coil former have been pushed out of the correct magnetic gap, usually around the top of the magnet. That means that the only way to fix it is to take the woofer completely apart. My suggestion is to just go and spend the money. A blown speaker is a sign of abuse, and voids warranties from the majority of companies out there to include Kicker.

May 04, 2010 | Jl Audio CVR12 Kicker 12" CompVR Series...

1 Answer

Speaker comes in and out... woofer blown im guessing.. what can i do to fix it before i end up sending it to m audio to be repaired


Does the tweeter keep playing when the woofer cuts out?

It is rare for a speaker to cut in and out, check all wiring connections and if possible connect it to a different amp to test, the amp can cut in and out just like a speaker. Try switching it with another speaker and see if it cuts out aswell.

Hope this helps!

Thanks

Jan 22, 2010 | M-Audio Studiophile BX8a Speaker

1 Answer

Can a dual voice coil speaker, be replaced with a different type? The 6-1/2" sub, behind the driver's seat went out, on my 2002 Firebird Coupe. What can it be replaced with? (without a loss of quality) The...


Can you hear midrange notes come out? like voices and instruments? I can find you a DVC woofer... not sure if they make aftermarket DVC subs that size though...

Oct 30, 2009 | 2002 Pontiac Firebird

1 Answer

Woofer not working on new bx8a speaker


Hi ermo

Your new speakers are BiAmped, and if a woofer is not working then it is probably a fault in the amp or connection for that woofer, or the the woofer itself has a problem. If they are brand new, I suggest you take it back to purchase point to get sorted out. There is nothing that you can do that will NOT void your warranty. If you do not have a warranty, then get back to me here and we can work through the problem. Cheers

regards
Graeme

May 23, 2008 | M-Audio Studiophile BX8a Speaker

2 Answers

Audio


Sounds to me like the voice coil is damaged. But without hearing it I wouldnt be able to tell you. If the voice coil is damaged there is no way to fix it.

Mar 07, 2008 | M-Audio Studiophile BX8a Speaker

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