You're not allowed to say the words "loudness button" on THIS site.
Seriously, if you have one, obviously, try it, it might work.
Otherwise I wouldn't go out of my way to get one. They are usually not very flexible. Some units, like older Yamaha units for example, have variable loudness adjustments at least which is better.
If you think you have the right speakers and matching amplification for the application and still are not satisfied, a pre-amp with more flexible tone controls can help. There is another recent thread on "flexible pre-amps" or something along those lines here that you might take a look at.
Seriously, if you have one, obviously, try it, it might work.
Otherwise I wouldn't go out of my way to get one. They are usually not very flexible. Some units, like older Yamaha units for example, have variable loudness adjustments at least which is better.
If you think you have the right speakers and matching amplification for the application and still are not satisfied, a pre-amp with more flexible tone controls can help. There is another recent thread on "flexible pre-amps" or something along those lines here that you might take a look at.