I agree with Dennis that the v3 G70 ROM style basses were tubby... Personally, I blame the new per-Part EQ, which they tended to over-use, and to the onboard basses being less than stellar in the first place. But since I got the SRX-07 card (and an SR-G01 card with some of the same samples on it), the bass end of my G70 is as good as anything out there...

But, as far away from flat as ALL built-in speakers are (this isn't a Yamaha bash, Ian), and as smooth and undynamic as Yamaha's base like them, it is obvious that, played through GOOD speakers (HR824's for me, too!), they are going to suffer a bit.

I didn't make that post up, Ian, Gary's post about the change in voicing from using external amps and speakers to voicing the styles using the internal speakers said EXACTLY the same thing, albeit a bit more considerately

Once you decide to do your voicing and mixing through speakers that are anything but flat, you can hardly expect it to sound good once it IS played through a good system. There's a reason studios buy really, really expensive flat systems to mix on...
_________________________
An arranger is just a tool. What matters is what you build with it..!