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M-Audio StudioPhile DX4 4'' Woofer

Woofer sounds to be "blown" but there is no visible sign of damage. When I push it in slightly (while off), I notice some distortion where as with the other speaker there is no noise (as it should be). It's almost as if the woofer has come apart from whatever is centered behind it or maybe rubbing against something else? Any thoughts, tips or even location of replacement woofer would be greatly appreciated! Thank you

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Re: M-Audio StudioPhile DX4 4'' Woofer

The "voice coil" inside the woofer must be rubbing against the "yolk" plate. Meaning = it is mechanically blown(damaged) to a point but electrically intact.
My sugesstion is to take out the damaged woofer and "google" for a mew woofer with the correct impendance and size and mounting holes. If you dont know thw impendance, then you should go with at least 8 ohms. More ohms = less risk of overloading the amp. whick can cause a fire!

Good Luck!!

Posted on Jun 11, 2009

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How to take the big speaker out of a studiophile BX8 speaker

As you can see, there are 8 screws holding the woofer in. Remove them, lift the speaker up, but before you disconnect it....Mark + and - onto the + and black -. .

Aug 18, 2014 | M-Audio Studiophile BX8 Main / Stereo...

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It sounds like the speaker might be "blown". If you take the cover off... looking at the speaker, does the speaker's cone have a crack? Or is it separated around the edge... if so, it is blown. Most of the time this can be fixed... but you will have to take it someplace.

Is there a company in your area that professionally installs car audio systems? If so, they usually can repair speakers, or they will know who can.

Mar 02, 2011 | M-Audio Studiophile BX8a Speaker

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No sound out of 15 speaker and only about half the sound out of horn

1. Confirm the woofer is not blown. Remove it and test it by using an AA battery and wire from the battery to the woofer terminals. When connected, the cone should jump. Alternately, if you have a meter, you can measure impedance. Infinity (or no jump with the battery method) means the coil is open and the speaker needs to be reconed.

2. If the woofer tests good, inspect the connections and wires from the input. Ensure there are no breaks. If the crossover includes a PC board, check for cracks or solder breaks and blown fuses / thermal damage. Repair as necessary.

If the woofer tests good and the wiring and connections are sound, reinstall and test. If there is still no sound from the woofer, test it by conecting it directly to the amp. If there is audio coming through the woofer, the issue lies within the cabinet. Consider replacing all internal cabinet componentry, including inputs. If the input is a 1/4" jack, it is likely thae contacts are bent out, away from the connector. Bend them back to center slightly, and clean them with alcohol or "deoxit".

"Half" the sound from the horn seems normal, as it is not intended to produce bass. If you mean half-volume, that is dependent on settings and measurements and is difficult to diagnose. clmrt5000_1.jpg

Jan 07, 2011 | Yamaha S115-IV 15" PA Speaker Cabinet...

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!


Jan 22, 2010 | M-Audio Studiophile BX8a Speaker

2 Answers


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


Sep 04, 2008 | M-Audio Studiophile BX8a Speaker

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


May 23, 2008 | M-Audio Studiophile BX8a Speaker

1 Answer

BX8A studiophile monitors distortion problem

it could be a loose connection or the cone is cracked inside , the only way to find out is to open and take a look inside ,check the connections , the 2 wires from box to speaker, ALSO CHECK where the cone meets with the magnet , hope this helps AJ

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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

1 Answer

Bx8 monitors problems

You will need to REPLACE THE WOOFER / DRIVER on this unit. Cost for a new driver is about $80.


Nov 04, 2007 | M-Audio Studiophile BX8 Main / Stereo...

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M-Audio BX8 blows a fuse

If your monitor is crackling and fizzing, that is not a fuse issue, unless the fuse you have installed is underrated. It sounds like you have a bad driver/woofer, and need to get it replaced. CLICK HERE FOR THE REPLACEMENT DRIVER for this model.


Jul 05, 2007 | M-Audio Studiophile BX8 Main / Stereo...

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