Korg EXB Radias MMT Expansion Board for M3 Keyboards

Product Review:

Pros: Sounds like a Radias, which isn't the fat, analog super-saw machine some prefer, but I like it for what it does. Flexible signal routing capabilities, nice integration with M3 controls. Greatly expands M3's tonal possibilities. X/Y touchscreen rocks with Radias sounds. Cons: Limited real time control with the lack of knobs - yes, it's integrated into the M3's control panel, but that in itself is limiting. You can set up the M3's sliders, buttons, joystick and ribbon controller to do a lot of the real time tweaking you might otherwise use the knobs for, but you have to know what you're doing and pre-program everything. Overall, a knockout M3 expansion for a fraction of the price of a full hardware synth. The only way to make this better would be to add a RadiasR unit - but note that you don't get the tight integration with the full rack unit - it's basically a separate synth and you have limited options for mixing and blending it with the internal M3 sounds.