
Click here for shots via this auction. These shots are about as good as it gets. Be sure to see them full size. There is also a nice shot of the x0xb0x in the set.
To quote from Sequentix's About P3 page:
The P3 Sequencer is an 8 track, hardware MIDI sequencer, with a user interface comprised of knobs, keys and LEDs. A sixteen character by two line PLED display provides confirmation of pattern data and access to advanced features and configuration options.
P3 allows real-time control of track mutes and simple pattern or pattern chain selection across multiple tracks, plus analogue-style editing of patterns. Each of its 384 patterns has independent values for note, velocity, tie, gate, length, gate delay, and a combination of up to four MIDI controllers, extra notes, or 'auxiliary events', per step.
P3's unique auxiliary events allow the creation of dynamically self-modifying patterns. They can grab values from other tracks, randomise steps, alter track and global settings, and much more. There are three modulation 'accumulators' per track, that can be used as LFOs, perform arpeggiation effects or enable complex pattern progressions.
Furthermore, you can assign front panel knobs to modify or mask these events in real-time, allowing you to create interactive patterns that change predictably as you adjust the knobs - varying in complexity, controlling levels of randomness, even 'morphing' from one pattern to another.
A Force-to-scale option provides preset and user-defined scales to keep everything in key (but defeat-able per pattern step if required), and a configurable 'change mode' allows patterns with different lengths and/or time-bases to free-run, or be synced to a global bar.
What's even better about this P3 is that it comes fitted with Sequentix's just-released (and essentially sold out) add-on for the P3, the P3 MemX Memory Expansion Board. Normally under the v4 firmware there are 24 bars of pattern storage for each of the 16 banks (384 bars total). With the MemX board installed there are 224 bars for each bank, bringing the total to 3584 bars! This is more than nine times the storage of most other Sequentix P3s. The P3 MemX was only available directly from Colin, but because because this P3 comes with the MemX installed, you don't have to worry about finding one, opening up the P3, and installing it yourself. It's already done! I will also include the memory chip which was removed in order to install the MemX, for... well... just in case you can find a use for it."
via Steve.