Doepfer

Hi people,
  I´m new in the mailing list and I need some help because my a-199 outputs an extra undesirable noise.
  I tried to fix the tank inside the rack-no way,outside(on the rack wall) it works better,sometimes so so and others the same problem.
               Thanks
                                 Guilherme.
       Please visit my web site: www.daluz.web.pt