it worked great for a 30$ limiter, i played three gigs with it, it does the job.
but then i dunno, i got a few more effects and i noticed that this behringer was humming buzzing quite bad. so i left it alone. a few days back i tried it again and its still there...... i tried using it alone, tried a different power supply for it, tried powering it up with a battery! nothing helped

anyone knows what might have caused this? or how i can fix it?