Yamaha PSR SX90

[Norwayfisher]

Hi Guy's
I have just purchased a Yamaha PSR SX900 and also bought a sub for it KS-SW100 I'm still trying to find my way around the keyboard the problem I have there is far to much bass it was bad enough before I added the sub but it's got a lot worse with the subso can anyone got any suggestions on what I can do.
Thanks
  Vernon.

[chax]

There is a separate discussion on this SW 100 subwoofer as under:
Yamaha KS-SW100 Subwoofer (psrtutorial.com)
You may like to follow the advice given by various members notably the valuable advice given by Chris which I am sure will be helpful. It works very well for me.
Chax

[Graham UK]

Vernon. The Sub-Bass Unit contains a volume control so by turning this all the way down to zero you would just hear the keyboard...start from here and just add a very little volume at a time to your liking.

A good Sub-Bass Unit should just add the very low frequencys.

[Totomo]

Try this

225hz.               +1db
315hz.    3.4.    +4db
500hz.    2.0.    +2db
630hz.    2.4.    +2db
800hz.    1.8.    +1db
1.2khz.    0.8.    +2db
4.0khz.    1.6.    +3db
9.0khz.               +4db

Compressor
Comp     5
Texture    23
Output.    60

Sw100
Volume at 5

[Christopher Fernandes]

Make sure your Subwoofer is connected via the "Sub-out" port behind the keyboard and not the L+R AUX port. And also make sure your keyboard's mixer's master settings is set to "With Subwoofer". Also note that when the subwoofer is connected via "Sub-out" the subwoofer's volume is completely independent i.e. your keyboard's volume doesn't affect the subwoofer's volume, instead you need to separately set the subwoofer volume using its onboard volume knob.

Regards,
Chris.