Mixer Hissing

[Dance FX]

Any suggestions please.

The mixer is a Denon DN-X1500 Bought just over a year ago from an online company which stated it was a UK model and they were UK based .....NOT!!!!

So I now have a Grey import that Denon don't want to know about and the hiss is getting progressively worse.

Tried adjusting the trimmer control, tired changing the noise gates in the presets but its still hissing away.

It is nothing to do with the other equipment as we have swapped if out for the x120 mixer and that one runs silently.

Any suggstions before I send it off to SST for a nice expensive repair :(

NB the hiss goes if we turn the master gain down to 1/4 and use the individual chanel gains at almost full.

[Jiggles]

Tried different cables and such? Check all bases.

[jamesh]

Have a word with Grahame at Norman Cooper and sons... Otherwise known to quite a few as soundshop - not sure he's on here but tell him James H gave his number and sure he'll be able to help....

He specialises in sorting out audio equipment such and amps and things so he may be able to help... If he can't he'll say so and it wont have cost you anything... Plus it may work out quite a bit cheaper for you....

He's based up in Bridlington so it's a fare trek but with something like a mixer it should be able to be sent pretty cheaply... (unlike my big bulky OHM amps that he services for me!)...

Grahame (AKA Soundshop) - Tel 01262 679735 email - [email protected]

[Dance FX]

Thanks James :)

[BeerFunk]

NB the hiss goes if we turn the master gain down to 1/4 and use the individual chanel gains at almost full.Is it just the master fader then? Does it hiss if you have the master at full and everything else low?

[TonyB]

I think you will find there is nothing wrong with it. The DN-X1500 is known to have a problem with hiss. I've known people use a noise gate with one to eliminate the hiss at low volumes.

Do you have the gains on you amps/speakers at full? You may be able to eliminate some of it by setting up a gain structure. The master fader should have a heavier line about 8/10ths of the way up. Without having the amp/speaker gains turned up, set the master there, play a track through the mixer and adjust the channel sliders so the meter shows 0db. Then increase the gain control on the amp/mixer until it just starts to clip then back off a bit.

Will probably be the best you can get it to sound.

[BeerFunk]

I think you will find there is nothing wrong with it. The DN-X1500 is known to have a problem with hiss. I've known people use a noise gate with one to eliminate the hiss at low volumes.I own one, and it doesn't hiss.

[markdj60]

cant u use a isolator it works for me.

Next time the post will be deleted! No text talk.

[Tom]

Sorry if this sounds silly but are you connecting the cd players in to the right inputs on the back of the mixer?

For cd players, use the line in. I don't get any hiss at all from my cd players and mixer.

[DeckstarDeluxe]

i take it you are using cd players and not vinyl??

If you are using turntables you have to "ground" both turntables otherwise you will get a hiss like your saying.

[Dance FX]

OK breaking news! Just turned it on and............silence :)

Going to leave it playing for an hour and see if it starts to hiss again which could mean one of two things:
1. It's overheating
2. It heard me when I said I was going to scrap it :D (this one always works when my car is playing up!)

Will update in a bit
Sarah

UPDATE. It's now nice and hot and very hissy!

[DeckstarDeluxe]

OK breaking news! Just turned it on and............silence :)

Going to leave it playing for an hour and see if it starts to hiss again which could mean one of two things:
1. It's overheating
2. It heard me when I said I was going to scrap it :D (this one always works when my car is playing up!)

Will update in a bit
Sarah

UPDATE. It's now nice and hot and very hissy!

I have the same mixer as yours Sarah and i have to say its been fine. Just out of interest how much did you pay for yours? Mine was £550 back in jan 08.

My mixer is back in storage so cant look at the back but could i suggest a few things to try.

Firstly make sure that the correct input is selected on each channel (For example channel one has phono and line and possible mic selectable (from memory)

Try channels three and four check.
Change phono leads.
If your coming out of your mixer xlr try using phono.

These might not fix the proplem but hopefully it will pinpoint where the issue is.

[Tom]

Just to note that these mixers do get very very hot.

I also use the x1500 mixer too.

As deckstar has already said, try different leads (audio and power leads).

Do you get any of thie hissing noise out of the headphone socket on the mixer???

[BeerFunk]

The mixer doesn't hiss until it gets hot. How could changing the phono leads change that?

[DeckstarDeluxe]

The mixer doesn't hiss until it gets hot. How could changing the phono leads change that?

Because you need to locate the proplem. How would you feel if you sent off a mixer to be repaired to find out it was just a bad phono lead?

[Dance FX]

We know it's nothing to do with the leads, decks or speakers because when we swap it out for the other mixer the hiss is not there.

I will have to get this one sent away :(

[spin mobile disco]

If it hisses only when it heats up it could be a capacitor on its way out. A repair shop can normally install a new one quite cheaply.