Alesis ION Analog Modeling Synthesizer Not Factory Sealed (Synths, Samplers, and Sequencers)
What makes the ION sound so good? Alesis' proprietary 500 MIPS sound engine! With over 500 million "instructions per second", the ION has processing power to spare, so you can play (and create) some of the coolest analog style sounds you have ever heard! the ION packs eight voices of smooth, high-bandwidth analog-style punch, with three oscillators and two multi-mode filters per voice. This multitimbral sound engine serves up everything from warm, round bass tones to lush pads and gritty lead sounds, making ION perfect for music styles ranging from rock to funk and beyond.

more details ...