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EMX 860 st ( very low O/P, and very distorted on all 3 O/P's

Iv'e got 3 EMX860st units, and 1 has gone very low volume, and very distorted on all 3 outputs. Please can you help.

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SOURCE: yamaha 860 st

this could be the pre amp transistor or the power amp , it will need to be tested and other components tested also to make sure they are not causing the pre amp to fail or the power amp to fail
if its the pre amp it will be cheap , if its the power amp then it won't be cheap , other small components are cheap


Posted on Oct 31, 2008

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Why do i have very low volume on my subwoofer

1.Look at the fuse inside the speaker and test it if you know how. This is a likely problem that causes your sub to power up improperly, play sounds at about half the volume or intermittently fade in and out. If the fuse is discolored or shows a short, you'll need to replace it.

2.Check with your manufacturer's Tech Support Web site. Usually with a sub-woofer, the problem lies with the voice coil, which might just be burned out. These are usually fixed by sending them into the manufacturer.

3.Check the bronze-colored coil underneath the foam cover. Note whether it looks worn, burned, warped or distorted. This may be the cause of your sub sounding fuzzy or muffled, which means it needs replacement.

I hope one of these tips works!!!

Jan 04, 2015 | Samsung HW-F450 - Sound bar system - For...


How Loud Can it Go?

I don't know if I ever installed a sound system to any concert fan who didn't ask me this question. So how loud can I safely play my sound system?

If you have a receiver or amplifier that has an analog dial that goes from 7 o'clock to 5 o'clock the majority of units will output maximum volume at around 1 o'clock assuming a line level signal is sent to it (again it varies a lot from piece to piece). Anything higher then that and the unit will send out a distorted signal colloquially referred to as "clipping". Most modern units now use digital volume controls and everyone is different. The only way to detect this distortion is listen to when the music sounds tinny and harsh instead of clean and musical.

If you do not find it is loud enough for your liking you must invest in a more powerful amplifier or higher efficiency speakers; or you will continue to destroy your innocent speakers and blame them for your over driven amplifier.

on Jan 27, 2010 | Home Theater Systems

1 Answer

I have an ITP180B that the maximum volume has suddenly gone down. The volume we used to get at 25 on the scale is now barely there at 40 on the scale

Is the sound distorted? For more information, or to inquire about a repair, please visit my website at You may contact me directly though the website. Thank you.

Dec 17, 2013 | iLive ITP180B Speaker Bar with Dock for...

1 Answer

How to listen thru headphones using a yamaha emx 88 mixer

Did sound for a southern gospel group, using a yorkville powered mixer. Not familiar with your mixer, but, on the Yorkville I had an unused 1/4" line level output with the monitor mix on it. I bought a cigar-sized, 3-channel headphone amplifier / splitter from Radio Shack, called a Boosteroo. Has 1/8" stereo plug that I adapted to the mono output, with a 1/8" stereo to 1/4" mono adaptor. It receives the line level (monitor in our case) signal and supports up to qty 3 - 1/8" plug headphones. Battery operated. No volume control, so I added an inline dial (rheostat) volume control cable. Can't pull up on Radio Shack, now, but, found it available, elsewhere, online. Worked great for me!
Good Luck SdDude

Feb 19, 2012 | Yamaha Emx88s Powered PA Mixer System

2 Answers

C how can I conect my loptop to the mixer so i can play the music from my computer

To connect your laptop to your mixer, first you need to buy a mini plug to 2-RCA cable, like the one in the figure below:

Then connect the two RCA plugs to one channel, using the inputs marked LINE or CD, as shown by the red arrows in the figure below:

Let us say that you already have two CD units connected to channels 1 and 2. Connect the cable mentioned above to the two RCA jacks of Channel 3.

Now, connect the mini plug to the sound output of your laptop (it should be merked LINE OUT, PHONES or have the symbol of a phone close to it). If the output is dinamically addressed, i.e., the sound driver pops up a windows asking what have you connected to that input, please mark the answer that indicates LINE OUT or HEADPHONES (or something related, but not LINE IN or MICROPHONE).

Adjust your laptop volume to LOW. Switch on your mixer, select the channel you connected the laptop and increase its volume. Put a song in your laptop to play and raise its volume little by little, till you have a good level of sound with no distortion

A word of caution: If you adjust the laptop volume to maximum, distortion could occur, so experiment with the laptop volume to find the best level.

Hope this info may help you!

Apr 01, 2011 | Pioneer DJm500 Professional DJ Mixer...

1 Answer

My SONY Home Theater Model HT-6600DP unit was working fine and then about tow years after...present, my sub woofer is sounding distorted. Why is this happening? Please help me as I often watch my home...

Is it so even at lower volumes?

Are you sure it's the sub distorting and not the front or center speakers?

If you designate them incorrectly as Large (which tells the receiver they CAN effectively produce bass frequencies) they will probably distort in the presence of low frequencies.

See Page 17, 19

Register and download the manual for free at

Mar 13, 2011 | Sony HT-6600DP System

3 Answers

Low sound, at maximum volume

possible reasons
is there a volume limiter switched on in the menu?
Is whatever is feeding the amp at the correct level, are you feeding from line out or does it depend on tv's volume settings?
Is it distorted, if not the amp is probably ok

Mar 07, 2011 | Philips Home Theater Systems

3 Answers

Sound of the recording after burnt to a cd is very low

adjust your top knob which is called the gain, this will allow the incoming signal to be muchlouder depending on where you set it , the bottom fader is for playback volume and mixing and you should also a avolume control for your head set , follow also the recording instructions in your manual for optimal settings , there,s no reason that your recordings should come out with low volume other then your gain control being set to low , hope i was able to help , if i was please leave a nice rating ,sincerely glenn mayer

Mar 09, 2009 | Tascam 2488 Portastudio Multitrack...

1 Answer

Yamaha 860 st

this could be the pre amp transistor or the power amp , it will need to be tested and other components tested also to make sure they are not causing the pre amp to fail or the power amp to fail
if its the pre amp it will be cheap , if its the power amp then it won't be cheap , other small components are cheap


Oct 31, 2008 | Yamaha Emx88s Powered PA Mixer System

1 Answer

Panasonic HT790V rear speaker volume

try this link to get the manual.....or try this

1. put a dvd into the drive
2. stop playing it.
3. press and hold channel select button [ch select]
4. this will show different channels....scroll through them and using he four arrow keys increase or decrease the volume...
should wrk....

May 19, 2008 | Panasonic Home Theater System System

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