There are TONS of audio demos here:
http://www.wohmart.com/a6/
Demos of single patches mostly. Some great playing here and there too. Of course, this is not the way the synth actually sounds, since MP3 format doesn't do justice to an analogue monster synth. But there you go. Can't have everything. Can also find quite alot of vids on youtube searching for Alesis Andromeda.
It might look frightening, but the front panel is really just "one knob per function". Here's a quick breakdown.
Furthest to the left (in the black section) you have the keyboard controls, where you set key trigger modes (legato/normal etc) VCO unison (2-16 voices, scary), how much pitch bend you want, portamento time and the sequencer/arpeggiator controls (top).
Then you have the 4 LFO's with their own knobs for speed and waveform selection.
Then 2 VCO, each with 4 knobs around them to control fine/cents tuning, pitch eg modulation. And the little buttons are the inputs on the module, like a modular synth, you can route any parameter to modulate various things like VCO pitch.
Further right you got the VCO mixer section, also containing 2 suboscillators, noise amount (and colour) and a ringmod level knob.
Jumping over the LCD screen, you got the 2 filters with their surrounding knobs like resonance, eg amount, and the CV inputs. Then there's the post-filter mixer, with separate outputs for LP/HP/BP on filter 1 (12db multimode), and LP level for filter 2 (24dB moog), plus mixing in unfiltered vco sine waves/ringmod sound. Then there's 3 envelope generators with a knob for each stage. And the output section at last where you set you pan levels, main output volume etc.
Whenever you turn a knob or push a button, the LCD jumps to the correct menu screen so you instantly see what you're tweaking and what value it has. The 8 little knobs below the LCD are to adjust the parameters that appear in the LCD.
The LCD is big enough to show graphical envelopes in realtime as you tweak the times and levels, very helpful.
There is also a small "view" button on each major module that lets you see all the current knob settings on the chosen module on the screen.
The long row of buttons above the keyboard are patch selection, and the keyboard long ribbon controller that can be assigned to ANY parameter on the entire synth. Not just VCO pitch like CS-80 could, can also have several routings at once, like both filter cutoff and LFO speed+resonance as you move your finger. Great for playing theremin on too.
The synth also has a perfectly fine effects section with digital effects like various delay types, lots of reverbs, and other things. And an analog transistor distortion unit that sounds wonderfully nasty.
unfortunately I've had to put up my dot.com modular to help pay the synth god monkeys. 
