Why does my Sub give better sounding bass when amp on Night Mode?

[admin_exported]

Can anyone explain to me why when I place my amp (Sony STR-DA1200ES) on “Night Mode” I get a better bass from my Kef Sub (Kef 2005.1) than when it’s not set on this mode?

I understand that when in night mode the bass is meant to decrease to stop keeping the household up late in evening etc…. strange but if you have any ideas please reply.

 

[Anonymous]

Can anyone help please?

 

[Andrew Everard]

Suggests something in the settings is driving the sub wrongly in normal mode, so that when night mode kicks in, it improves things up.

 

[Anonymous]

Thanks Andrew as ever do you think my amp could be on its way out?

 

[Andrew Everard]

Not on its way out, no - probably just the level on the sub or the crossover set up incorrectly

 

[Anonymous]

I dont know your amp but some 2 channel amps have a "loudness" button.

My understanding was that this increased both treble & bass so that a low volumes (night time listening) these could be heard better.

This is the opposite to how you think your amp is working - but I could be wrong!

 

[Andrew Everard]

Yes, the Night Mode on this amp increases the bass and treble, to compensate for listening at lower levels, and also maximises the Dynamic Range Compressor effect, so the differences between the loudest and quietest sounds are greatly reduced.