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

 

It would be better to just put a protection circuit or a delayed action relay like most modern receiver have.

 

The datasheet says the chip has a mute function. Might be worth trying that.

 

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

 

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

http://sound.westhost.com/project33.htm