Hi Val
I tried those soundpacks sites settings and they say they are a great start.
I found them on my Yamaha DXR 8 speakers muddy and loud.
What I did is try the Yamaha presets and the Loudness one came over very clear in my room.
I then adjusted the different frequencies to get a warm clear sound
I think the best way to explain the Eq for people is It is only adjusting like your hi fi with bass and treble, but there are a few extra sliders.
The best thing is to go through each slide up and down until you are happy with that frequency. It Is a bit of a fiddle ,but you get there
Everyones room is different,so someones meat is another mans poison. 
All The Best
John 
Hi John.
Setting an EQ to a room is not so simple, and digital EQ of Tyros/Genos/PSR or whatever, is not so simple, and I tell you why: The Q Factor parameter (which can do the difference) is not graphical represented... I definitely wish a screen with a professional Digital EQ setting up, because changing settings only by a knob or a slider you cannot see the frequencies cutted off by this Q Factor, a visual - graphical interface, will make the difference
...
Look at this two pictures ("the power of Mr Q"
):
First setting will raise also the frequencies bellow and above the parent-frequency (the frequency over we apply the Q Factor), but the second one will not do that, it will raise only with an minimum value above and bellow.
I also I want to see a LowCut virtual button and the frequency from where to cut and a high cut, also with the frequency from where I want to cut.
All this parameters could be created, but only time will say if Yamaha will make a full feature keyboard!
And coming back to our subject, the environment, how big is the room, the material from which the wall is made, brick, cement, plasterboard, if you have parquet, or laminate flooring, or carpet or floor tiles, if you have furniture, if you have soundproofing or anti-phonic walls... EVERY this detail alter the frequencies.
You made your sound better to your home studio, or your studding room, but I tell you, if you go with the same settings in other room of your house, does not sound good anymore, even if they are your settings...
Everyone has to make its own settings for EQ, for compression... Start from flat eq and change each parameter, till you achieve the better sound in that room. Those settings are not good for other PA system or other rooms, so everytime you have to modify some frequencies values... Environment, environment, environment!!!
Regards,
Vali
