How loud is +40 db Gain?

[Mario]

I'm looking for a suitable audio amplifier for my portable and I found this one. It is easy to use, but the datasheet says it has +40 db gain. 40 db is just under normal conversation, so that's much too quiet for a portable.
Is there a difference between 40 db and +40 db gain? How loud would this be in relation to a portable?

 

[jleemero]

+40 is, in my opinion, quite something.

The incredibly common LM386 pulls half that.

 

[XCVG]

I think it means that you get 40dB MORE than what you put in.

 

[Mario]

So, for an N64 portable, is that a decent loudness? How would it compare to the PSOne screen?

 

[jleemero]

So, for an N64 portable, is that a decent loudness? How would it compare to the PSOne screen?

This will be QUITE loud.

 

[Mario]

Awesome. Thanks.

 

[eurddrue]

+40 is, in my opinion, quite something.

The incredibly common LM386 pulls half that.

Yeah, but the LM386 sucks.