Alesis M1active 520 USB left speaker hiss

Left speaker has a loud hiss, even when nothing is plugged into the speakers other than just the mains cable.

Tried plugging in to different power sockets with no result

Tried switching off all nearby appliances/monitor, etc, no result.
1 person has
this question
+1
Reply
  • Hi Chris,
    Thanks for posting. I'll be happy to help!

    Make sure there are no other sources next to your monitors that could possibly be transmitting interference, such as a TV. Are these connected to a laptop or a desktop computer? If you're connected to a laptop make sure your charger has 3 prongs instead of 2. if it is a 2-prong charger, the connection is not properly grounded. I would also recommend going through as surge protector to ensure you're properly grouded, if you aren't already. Double-check the surge protector is not being overloaded, as this can cause noise and interference to occur, as well. While it is normal to hear a low amount of hiss from any monitor or speaker with no audio passing through it, this should not be apparent in your recordings. 
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. sad, anxious, confused, frustrated kidding, amused, unsure, silly happy, confident, thankful, excited indifferent, undecided, unconcerned

  • 1
    Hi
    Thanks for your reply.
    The monitor hisses all the time - even when not connected to anything at all.
    The hiss is at a constant volume and does not vary with the volume control
    The hiss is loud and very noticeable, to the point it is a relief when I switch the speakers off. You can clearly hear it over moderately quiet music
    The hiss still occurs when everything near it is switched off, i.e. PC/monitor, etc.
    I have tried different sockets/leads and the hiss is the same whatever I try
    Regards
    Chris
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. sad, anxious, confused, frustrated kidding, amused, unsure, silly happy, confident, thankful, excited indifferent, undecided, unconcerned

  • If the hissing is loud and noticeable, please call into technical support. You can find their contact information at www.alesis.com/support.
  • (some HTML allowed)
    How does this make you feel?
    Add Image
    I'm

    e.g. sad, anxious, confused, frustrated kidding, amused, unsure, silly happy, confident, thankful, excited indifferent, undecided, unconcerned