I was looking at starting a 49-key keyboard, already having 61 and looking for something more practical. I finally took it for quick access to keys cranberry is a right of knobs.
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UTILIZATION

These buttons (depending on the soft configuratioin) access to 16 channels on the fly. No menu, no latency, with a button dedicate to each and no + / -. This is extremely handy as a button on stage = one sound. It makes life easier.

Even better now, we can do is memorize each of these 16 locations presets 4 different channels, with different key ranges that overlap or not. And you can also configure ca live with one touch. The "sound = one button" becomes "a button = 4 layers". And it is very good.

The buttons in question are of a very beautiful blue LEDs inside. It is very clear, it does not sting the eyes and it's convenient. The menus are pretty clear, we found it. If the app that allows you manage its presets to work, it is against a little time. Not really pleasant to use, nor very fast.

I love the button. The standard adjustment is not good, it is far too sensisble but after adjustment it going. The reactivity of keys on the other hand nothing to say. impecable.

Negative point, the knobs. There are not accurate, does not look solid at all. In the end I find the limit of usable. I even plans to open the keyboard to fire them because they impede the transport.

OVERALL OPINION

Few years that I have. No intensive use contrary to what was EXPECTED. I tried many other model (edirol, m-audio, roland, korg, cme, novationt, etc. etc. etc.)

This one is a good bargain price, possesses a very good touch, quick access to channels of the most convenient, and LEDs in the buttons just as convenient.

The editor software could be better now, and the knobs are not worth much.