Pioneer DDJ-SB2 humming sound.

DJ Gear & Hardware Hardware: Controllers, Mods and Gear
1

Pioneer DDJ-SB2 humming sound.

Hooked up the setup per usual to brand new KRK Rokit 6 speakers, and found there’s a very loud noise when the speakers are set to 0db (neutral). I have to turn the speakers all the way down to -30db before the sound goes away and everything is fine.

Only does this with that controller attached. I have plugged other sources of audio into the speakers and use them normally. (Volume at 0db).

Any ideas why? I’ve read it’s a common issue, but no one has solved it yet. I’ll be upgrading to 2 XDJ1000MK2’s and a DJM750MK2 in the near future, but for the mean time any help would be appreciated!

2

Ground Hum is the most likely culprit from the unbalanced RCA outputs of the SB2

A ground loop isolator or DI box with ground lift should do the trick and use USB cable with a ferrite core as well if you arent using one already.

https://www.amazon.com/Phono-Ground-Isolator-Female-Earthing/dp/B01FBA0ZS0/ref=sr_1_5?s=musical-instruments&ie=UTF8&qid=1505890703&sr=1-5&keywords=ground+loop+isolator

3

im going to take a guess and say that you are running RCAs from your controller to your Rokits?

4

That’s the only choice with the SB2.

Purchase a chroma cable from the DJTT store and see if it fixes the hum issue.

5

im saying he needs an audio interface or mixer in between the rokits and sb2

6

A ground lift at most is all he needs, probably just a new USB cable

Most mid level club mixers until 2000 or thereabouts did not have balanced outputs and we survived just fine.

7

SO much truth in this statement. People are beyond spoiled now-a-days.