buzzing from new pioneer mixer

[surround sounds]

just wondering if any one can help.
Just brought a new Pioneer Djm3000 Mixer.I set it up as normal to active Jbl eons G2 and i get a slight buzzing noise from the speakers when music is not being played.I never had this problem with my old mixer citronic cdm10.4.
I thought maybe the xlr leads but they are fine with old mixer.Any Ideas please
Thanks
John

[Dynamic Entertainment]

It may well be the leads. I found upgrading to high quality xlr leads to carry the better quality signal helped a great deal.

[D.J Abie]

I had the same buzzing problem when I changed to my current mixer a beheringer vmx1000.

Are you using balanced xlr cables or unbalanced cables?

I was advised to use balanced cables so I bought 2 off ebay and problem cured.

Good Luck

[JTRS]

That's a bit of a spooky post, I went from a Citronic 10.4 to the Pioneer DJM2000 about 2 months ago.

I was advised to buy some high quality xlr leads at the time and I did, so far I haven't had any trouble from the Pioneer unit but the difference in sound quality is amazing, what I will do tomorrow (or tonight if I get chance) is to try my old leads with the new mixer and see if that generates a buzz, if so I'll post back and it might give you a clue. (I know that my old leads are not high quality ones but they work fine with the Citronic).

JTRS

[surround sounds]

well i will try any thing now.Any idea where i can get a good 5mtr set from then.To be honest i used qtx professional microphone cable.These no good then cause they was fine with my citronic mixer.
thanks

[surround sounds]

That's a bit of a spooky post, I went from a Citronic 10.4 to the Pioneer DJM2000 about 2 months ago.

I was advised to buy some high quality xlr leads at the time and I did, so far I haven't had any trouble from the Pioneer unit but the difference in sound quality is amazing, what I will do tomorrow (or tonight if I get chance) is to try my old leads with the new mixer and see if that generates a buzz, if so I'll post back and it might give you a clue. (I know that my old leads are not high quality ones but they work fine with the Citronic).

JTRS

ok That would be great.The buzzing goes once music comes through my jbl speakers.Thanks JTRS
John

[JTRS]

Hate to say this but I got no buzz using my old leads, as far as I know all my leads are balanced, so I'm wondering if unbalanced would make a difference as DJ Able suggests???

JTRS

[surround sounds]

how can you let if your leads are balanced or not.

[DJMaxG]

I read the exact same issue yesterday, but with something moving from a Citronic to a Denon X series.

I have had hissing on hifi systems before, but not on my pro audio system (driven by a warrior amplifier). I have never used active before, but would consider it.

It's hard to figure out what causes it really, unless you check everything down to the very last inch.

[JTRS]

how can you let if your leads are balanced or not.


As far as I am aware if they have 3 wires connected they are balanced, if they only use two then they are unbalanced, so open up the XLR and see how many wires it is using

JTRS

[surround sounds]

As far as I am aware if they have 3 wires connected they are balanced, if they only use two then they are unbalanced, so open up the XLR and see how many wires it is using

JTRS

OK thanks for your help,Any idea where i can get good quality leads from.
thanks
john

[DJ Tony McQue]

Are you using a laptop or digital based playback system? If so, it is likely you are having a ground loop issue. I had a similar issue going from a cheap numark mixer to my new Pioneer mixer. Thankfully a pair of the following solved my issue:

http://cgi.ebay.co.uk/GROUND-LOOP-ISOLATOR-AVOID-AUDIO-HUMMING!-Great-Value!_W0QQitemZ370330100766QQcmdZViewItem?rvr_id=&rvr_id=&cguid=c52339611280a0aad1e4cb44fe5ca028

[Dynamic Entertainment]

I read the exact same issue yesterday, but with something moving from a Citronic to a Denon X series.

I have had hissing on hifi systems before, but not on my pro audio system (driven by a warrior amplifier). I have never used active before, but would consider it.

It's hard to figure out what causes it really, unless you check everything down to the very last inch.

No you never. My problem was actual distortion of the audio. Not hum.... ;)

[Excalibur]

Before shelling out hard earned on new cables or isolators, it's always worth checking the "Ground Lift " switches on such kit. See which if any permutations cut or eliminate the noise. Do remember it's vital that everything is switched off before changing the settings.

[surround sounds]

Before shelling out hard earned on new cables or isolators, it's always worth checking the "Ground Lift " switches on such kit. See which if any permutations cut or eliminate the noise. Do remember it's vital that everything is switched off before changing the settings.

OK thanks i will look at that then.Many thanks to everyone

[surround sounds]

Are you using a laptop or digital based playback system? If so, it is likely you are having a ground loop issue. I had a similar issue going from a cheap numark mixer to my new Pioneer mixer. Thankfully a pair of the following solved my issue:

http://cgi.ebay.co.uk/GROUND-LOOP-ISOLATOR-AVOID-AUDIO-HUMMING!-Great-Value!_W0QQitemZ370330100766QQcmdZViewItem?rvr_id=&rvr_id=&cguid=c52339611280a0aad1e4cb44fe5ca028

Thats ok but i use xlr connectors.Is there one for this.
thanks

[Excalibur]

Thats ok but i use xlr connectors.Is there one for this.
thanks

I'm guessing you don't use XLR from Lappy to Mixer. ;)

[surround sounds]

I'm guessing you don't use XLR from Lappy to Mixer. ;)

No phono leads into mixer.I only use XLR from mixer to speakers
thanks

[DJ Tony McQue]

Thats ok but i use xlr connectors.Is there one for this.
thanks

You put these inbetween the output from your soundcard and mixer and that eliminates the hum, you don't need this for xlr outputs as they already run balanced. A good way to test if it is your laptop causing the problem is to try unplugging the power supply from ylour laptop whilst playing some music, if the buzzing goes away then it is definately a ground loop problem.

[Excalibur]

You put these inbetween the output from your soundcard and mixer and that eliminates the hum, you don't need this for xlr outputs as they already run balanced. A good way to test if it is your laptop causing the problem is to try unplugging the power supply from ylour laptop whilst playing some music, if the buzzing goes away then it is definately a ground loop problem.

Exactly what I was trying to say in an abysmally poor way. :o :o

[Dynamic Entertainment]

ok That would be great.The buzzing goes once music comes through my jbl speakers.Thanks JTRS
John


You put these inbetween the output from your soundcard and mixer and that eliminates the hum, you don't need this for xlr outputs as they already run balanced. A good way to test if it is your laptop causing the problem is to try unplugging the power supply from ylour laptop whilst playing some music, if the buzzing goes away then it is definately a ground loop problem.

Ahem :D

It sounds to me like the problem is not a ground loop., but inferior XLR cables.

I used to get the issue until i upgraded the cables. Im running a laptop, but the SSL external soundcard ensures that GLH isnt an issue.

[surround sounds]

just wondering if any one can help.
Just brought a new Pioneer Djm3000 Mixer.I set it up as normal to active Jbl eons G2 and i get a slight buzzing noise from the speakers when music is not being played.I never had this problem with my old mixer citronic cdm10.4.
I thought maybe the xlr leads but they are fine with old mixer.Any Ideas please
Thanks
John

just had a thought..I have seen on the back of the mixer a little screw,next to it says master level att, whats this? would this decrease the output and stop the buzzing on my speakers?I have tried everythink else.

thanks

[Ajaysdisco]

Could be mains hum; make sure signal leads and power leads are kept apart.
If you’re not careful the mains frequency of 50Hz can be coupled into the signal line creating a hum.
This is one of the reasons why it’s better to have decent cables as higher price cables have better shielding reducing the chance of other signals getting in.