Question about M-Audio Studio Pro 3 Professional Desktop Audio Monitors Retail Speaker

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I am experiencing lower sound output and distortion in both L and R speakers from my M-Audio StudioPro3 powered loudspeakers. This occurs at normal audio level inputs that have been tested with other amplifiers that do not display any distortion. The StudioPro3 speakers originally never exhibited this distortion. I also notice that the rear of the right speaker (power one) gets a bit warm and I notice a slight hum when the unit is powered up. I also notice that the DC output from the bridge rectifier which is about 19V DC for no sound drops to as low as 16V Dc for normal input levels with both speakers active. I tested the diodes in the bridge rectifier but none seem open. Can you provide a schematic? Does this service cost anything? I

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Posted on Jan 02, 2017

Shuttle83
  • 1139 Answers

SOURCE: humming BX8

Hello docjgg,

This sounds like it may be a loose connection (ground) generation common mode noise or it may be a capacitor in the power supply going bad and not providing enough filtering of the AC voltage (allowing for 60 cycle hum). You should get a schematic for the speaker or just take some rule of thumb measurements of the power supply output, with an oscilloscope (you will be looking for ripple voltage, what you could do is use one of your good speakers as a comparison of good to bad.

If you do not want to work on this yourself, you could take the speaker to any TV repair shop or audio repair shop.

I hope this helps

Thank you,

Shuttle83

Posted on May 25, 2008

  • 10 Answers

SOURCE: I HAVE THE M-AUDIO SP 5B MONITORS AND ONE OF THEM

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.

Posted on Apr 02, 2011

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Insignia tv. After 10-15 minutes sound becomes distorted and volume goes to almost a whisper.


Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
If audio output IC overheat, this type of fault can occur. Check the screwing firmness to this IC to its metal heatsink.

Sep 13, 2014 | Insignia Televison & Video

1 Answer

Marshall MB4410, with low volume gives no real volume,


Guitar amps have preamp sections (think unpowered audio mixer) and power amp sections (Crown rack-mount amp). An excellent way to isolate audio problems if amp is still producing audio is to check the preamp out (line out). Preamp output distorted = preamp failure. Connect MP3 player to "Power Amp In"...sound distorted = power amp failure. In your case the latter is the case as your "line out" is clean. Also test each speaker for clear sound as speaker cone damage from being overpowered is fairly common. At 300w. I'll assume the failure was not from cranking the volume to loud but a shorted speaker or speaker wiring could zap the power amp in an instant.

Jan 06, 2014 | Marshall MB4410 Bass Combo Amplifier

1 Answer

No sound on the tv but everything else works


Hello
Check whether 'mute' function is On. If it is ON, normally a embelm of speaker with a red cross over it will be displayed on the secreen with most of the TVs. You haven't given any details of your tV, brand name, model number etc:- so, i can oly give you general flault description. If mute is OFF, and still there is no sound output from your TV, check its speaker first. If speake is OK, check the set for it audio output, by connecting it with an external amp, by connecting the audio out rCA socet at the mack of the tv, to the audio 'in' of the amp. If there is audio out from the TV, you can heare audio through amp. If there is no audio from amp also, make sure that the sound fliter circuit inside your tV is faulty. If there is sound through amp, and no sound comes by the loudspeaker of the Tv, make sure that the audiou output section circuit inside your tV has the fault; provided speaker is good. OK.

Dec 08, 2011 | Televison & Video

1 Answer

Hi there, I have a pair of M audio BX5 speakers, one of them works fine, on the other hand, the other one sounds kindda funny. Both of the twitter and the 5-inch cone on it work, the main thing that's...


Little goes wrong with a speaker unless it has either been overloaded or subject to damp, extreme dust or has sustained physical damage from some sort of accident.

A rough test is to move the speaker cone gently through most of it's travel using an even pressure simultaneously on various places around the cone, I use my fingers.
It should move smoothly without any resistance and most importantly it should be completely silent through the largest or smallest movements.

If it sounds scratchy, the speech coil is either off-centre or it has suffered damp or dust and dirt has ingressed into the air gap or the chassis has become distorted.
If it is silent and electrically sound it should produce normal volume.

There was a time when loudspeaker repair, overhaul or adjustment was routine but these days it isn't economic except for the highest quality and replacement is best.

After gaining access to the interior wiring of the speaker cabinet I suggest further testing it by wiring it direct and leaving out the crossover if it has one.

Mar 23, 2017 | M-Audio Studiophile BX5 Main / Stereo...

1 Answer

What's the output of the speaker system in watts ?


Hello

Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts. The electrical power delivered to the loudspeaker and its sensitivity determines the sound power level generated (with the rest being converted to heat).
Amplifiers are limited in the electrical energy they can amplify, loudspeakers are limited in the electrical energy they can convert to sound energy without distorting the audio signal or destroying themselves. These power ratings are important to consumers finding compatible products and comparing competitors
Do rate, if got help

Dec 04, 2010 | Logitech Z523 2 Speakers

1 Answer

Amp sends power to sub at low volume. but when volume is increased speaker loses bass and distorts REALLY BAD. Still has power but clear bass disperses. just sounds terrible at even lower volumes


are the sub speakers ok? if ok then u have a problem with the Amp and the output IC's will have to be checked there cud be a problem with the input card in the amp.

Aug 26, 2009 | Jl Audio 500/5 Car Audio Amplifier

2 Answers

Subwoofer problem


Hi there,

The distortion you are experiencing could be due to a few things,

Drivers for the device,ie the latest updates applied recently,
This may affect the performance of the units functionality.

The cables not being connected properly,poor signals and connections,

The source from where you original sound signals came from,
ie,over recorded source,too loud for the system speakers to reproduce the correct tones,
this is dangerous to speakers and the listerners hearing comfort too,

The simplist way to check your speakers are ok is to check them on another system with a similar sound device,or plug a set of head phones into you creative 4.1 output on a low volume,
is there a signal output to your head phones???

The most comon form of distortion is the equaliser setting on the original source output,turn it down to help eliminate the frequency your looking for and the adjust EQ to suit your comfort zone.

Apart from this will be unplug each zone and test individually,
should be a quick and painless solution,

Microphone feedback can damage speakers too,,,,,,

If the distortion remains try different speakers on the output.


Hope this helps , MISTERDJ

Aug 25, 2009 | Audio Players & Recorders

1 Answer

Have in built sound card in D845HV mother board. Experiencing heavy distortion as soon as the mic is connected. It was working well till last month.



Distorted or scratchy sound can be caused by several problems. Improving the sound can be as simple as rearranging your hardware components. The following suggestions may resolve the problem of scratchy sound:
  • Are there any other devices around the speakers or wires for the speakers? Electro-magnetic interference can cause poor audio. Try moving your speakers and wires around and away from other devices.
  • Have you recently added any new cards to your computer? Cards within the computer can also cause electro-magnetic interference. Try moving the card to another location within the computer, if possible.
  • Verify that you are not encountering a hardware issue with the speakers you have by trying another pair of computer speakers.
  • Poor audio quality or low volumes may occur if you are using passive (non-amplified) speakers.
  • Are your speakers too close to your monitor? The speakers can pick up electrical noise from your monitor so move them farther away. Subwoofers should never be placed near the monitor because their powerful magnets can interfere with the picture. They should be on the floor to maximize low-frequency transmission.
  • Are you experiencing sound problems only with particular games or programs? If you notice sound problems such as stuttering voices and static on some games or programs but not others, check with the software vendor for a software patch.
Data courtesy of: http://www.intel.com/support/motherboards/desktop/sb/CS-020642.htm

Also make sure to inspect your microphone, and the cord that connects it to your PC, for physical damage.

If you're still experiencing issues, you may need to replace the your microphone.

I hope this helps.

Ben P.


Apr 11, 2009 | Computers & Internet

1 Answer

Distorted Bass


Check the specs on the required ohms for the speakers. If it calls for 8 ohms and your speaker is 4, then you are pulling twice the normal current and this has blown an output transistor.

Mar 02, 2008 | Legacy Audio LA1030 Car Audio Amplifier

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