Tomorrow, Ketron will be showing the new SD5 arranger keyboard with 61keys-128note polyphony & on board speakers. I don't know all the spec's and I didn't get a chance to play it that much, but here's how I would describe the keyboard:
Solton MS60 type size & weight and durable construction...All Silver with XD9 dis- play... very nice button layout, I'd say the buttons are 1/2 the size of the tyros, but lay flatter or closer to the casing.
The keyboard has the same action as the SD1.
The SD5 has a joy stick vs. pitch bend and modulation wheels on previous products.
Hard drive and vocalizer are options.
It's 10:45am est and gotta run, i'll be back later today....
Dan O'
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Ketron, Yamaha, Casio,Roland arranger keyboards.
http://www.keyboardcity.net1-866-348-8876