Ashe37 wrote:To hear the Proteus2500 sounds you'll have to listen to the different ROMs that are in it... the Pop Composer ROM (Proteus 2000), the Techno ROM (XL-1), the Orchestral ROM (Virtuoso), the MoPhatt ROM, Protean Drums, etc etc. I don't remember what the default ROM for the 2500 is.
The 2500 came with a Composer ROM like the Proteus 2000 but with an extra bank of presets. Or something like that.
There are a few YouTube video demos of the Proteus 2000 that will give you a good idea of what it can do. Ashe37 is right: you have four slots so you can pick up some of the other ROMs to give you a huge variety of sounds.
Also: Proteus2500's are relatively hard to come by. The Command Station XL-7/MP-7/PX-7's are way more common and generally cheaper. They have the exact same sequencer and motherboard but with a set of pads to bash or use as a 2 octave keyboard controller. You can rack mount those as well, so long as you have room for six or so spaces. Adding a Composer ROM to one of those is pretty cheap, too. Prices on the more desirable ROMs [World/Vintage/Protean Drums] varies.
For drums AND bass I'd look at a mix of the Protean Drums ROM plus either the Composer or ZR-76 ROMs.
For drum'n'bass, I'd get some Goldie CD's out of the used bin.