Behringer HD400

Perfectly isolated PC noise

I have my PC's line in connected to the tape out of a mixer, then that mixer to another master mixer. Whenever the first mixer was off, I would hear the PC's crackling noise coming out of the master mixer, you know, the noise that gets worse when you move the mouse. I put the HD400 in between the PC and the first mixer, noise is gone.

Breaks ground loops!

If the cause of your hum or noise is a ground loop, this little thing is a great solution! It doesn't try to remove other types of noise, just ground.

An axual life saver

Bought several of these over the years !

I used them in live situations and in studios many times and always seems to work!

Great job Behringer

Didn't work for me!

Perhaps my noise issue isn't a ground loop issue, but this device didn't help at all. It actually made things dramatically worse, but it was worth a try.

Did not do anything

Is this really working?

Did nothing to remove hum.

Perfect

My Roland TR-6s is very noisy when powered via USB. This little box made the sound crystal clean. Just perfect.

Does it's job, what more can you ask?

Does the job without fuss. It loses one star in sound because you can tell it has been added to the signal path, but it's not a substantial difference and not a deal breaker. Also loses one star on quality because one of the jack sockets is not as positive as the others. Overall, a low cost and effective solution to removing the mains hum between my mixer and the powered PA speakers. Recommended.

Awesome!

My studio monitors had a really annoying buzz. Behringer HD400 to the rescue. Dead silent! Cheap, easy and good fix.

Noise elimination

Great device!! I 've been looking for it for so long! My speakers produced a noise the moment I turned them on even by simply moving the mouse no matter the connection and the cables. So, now, with this device no more noise. It works perfectly!

Awesome

Did the job that was advertised to do