Two thumbs down. Since you already have an SDS7, it'll be a huge disappointment.
Bass Drum sound generation is analog but incredibly limited so don't expect to do more than simple sounds. Snare/Rim is basically an eprom player like the SDS1. Toms are analog, too, and are the best part of the kit but you still can't get into craziness like on the SDS7. MIDI is ok, too, but not equal to MTM.
--- In Simmons_Drums@yahoogroups.com, Scott Gibbons wrote:
>
> I've never played an SDS9 before, and am just wondering...
>
> Is it basically like 3 channels of SDS7 and 3 channels of SDS8/800
> (without the run generator?)?
>
> Or is it fundamentally different?
>
> The MIDI capacity makes it tempting. MTM's seem to go for more than
> SDS9's...
>
>
> all my best,
> - Scott
>