I have both the JRV Bass and Drums and a D4.

I bought the JV expansion card mainly for the Bass sounds. As with all sounds ... some have dated quite quickly.

Drum sounds can be even more fashionable and so I tend to be on the newer techno and rave cards at the moment. I do use the dry D4 sounds when getting a song started but do often go for a sample later on. The JV can be frustating to use as the drum set doesn't allow you to quickly change drum sounds into the same key notes.

I have not yet found a drum box as good as the Linn was at the time.

If one of the companies made a good drum box we wouldn't need to buy a new one. :roll:

AS with all sounds in a box, spend as much time as possible checking the sounds before you buy.

Thanks Kev. But aren´t the Abrahan Laboriel patches pretty cool?
What do you mean outdated? exactly as happened with those slapp bass at late 80´s?
Oh My God!!!!
The 16 bit D4 samples sound to me a little mud today, but quite useful for some situations. wasn´t it origianlly released in 1991?
:)