Using a switch to disable speakers/drivers??

Discussion in 'General Electronics Chat' started by Soogs, Jun 9, 2016.

  1. Soogs

    Thread Starter New Member

    Jun 7, 2016
    8
    0
    Hi all,

    i recently put together a mini bluetooth speaker using the TDA7492P module.
    the issue im having is that when powered on the circuit makes a stupidly loud startup sound.
    i believe the amp switches on at about 70% power and its way too loud when others are sleeping in the house, or even in the garden etc

    is it ok to put a switch inline with each of the speakers to kill that initial start up sound?
    will a switch deteriorate the sound quality?

    Many thanks in advance!

    Soogs
     
  2. AMenard

    New Member

    Jun 7, 2016
    11
    2
    It would be better to just put a protection circuit or a delayed action relay like most modern receiver have.
     
  3. hrs

    Member

    Jun 13, 2014
    82
    7
    The datasheet says the chip has a mute function. Might be worth trying that.
     
  4. Soogs

    Thread Starter New Member

    Jun 7, 2016
    8
    0
    Amended - would you mind giving an example of such things? (I'm a noob)

    Hrs - there are 2 versions of this unit... Unless I'm missing something.

    The one I have doesn't have a power switch or line in/out. It's just a bt receiver and 2x 50 amp.

    I'll have a look at the data sheet when I get back indoors.

    Thank you both for your suggestions =)

    Soogs
     
  5. AMenard

    New Member

    Jun 7, 2016
    11
    2
    http://sound.westhost.com/project33.htm
     
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