Mike,

I know this may seem like a frivolous question,but did you read through any of these posts?
The WK-7500 is not-repeat not,an arranger.The definition of an arranger has already been outlined in this thread in great detail,so there's no point in beating the sh*t out of a dead horse.
Why is high wattage such a critical feature of a keyboard?
The amplifiers that are built into keyboards are crap,compared to a decent set of studio monitors anyhow.
The speaker systems in the WK series sound nice for general listening purposes,but were not designed for critical listening where accurate mixes are a requirement and unless your going to perform live at an arena,a total of 14 watts is sufficient.

Why is a minimum of 128 polyphony so essential?
Have you ever maxed out your 128 polyphony using a 16 track sequencer?Of course not.
I've been sequencing with 128 notes of polyphony for 7 years and I've NEVER maxed out it's capacity.
I owned a Korg M50 for about a year before I decided to sell it for an M3 and I've NEVER maxed out the M50's 80 note polyphony.

64 polyphony doesn't seem reasonable to you for a budget workstation?
Name ONE workstation or arranger keyboard on the market (besides the Roland Juno G)for under a $1,000 that has more than 64 note polyphony.
Bear in mind though,that the Juno G was originally $1100 and it has no pattern-based sequencing anyhow.
All Roland workstations sound like toys,for what they charge and if you want decent sounds for them,you have to spend a fortune on SRX & ARX cards.
A lot of people knock Casio,but price proportionate-wise,Casio offers so much more for the money and even some of the sounds in the higher end WK series are better than the Roland workstations.

Roland used to be at the top of their game when they made the Super JX-10 in the 80's,but Roland hasn't produced anything worthwhile in the last 10 years,except for the V-Synth.
There stand alone synths are good,but their workstations are piss poor sound-wise, and so overpriced.
Besides which,there are some very economically viable solutions to getting around the limitations of 64 notes without a computer,such as adding a Zoom R24 digital recorder to your gear set up($500).

If you want a completely self sufficient workstation or arranger,than you're going to have to spend at least a $1,000 to achieve that.

Since the WK-7500 will be well under a thousand(if not $500),then there's absolutely no point in complaining about it,until you've heard it.


-Elwood

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Korg M3,Reason 4,Presonus Studio One,Adam A7's,M-Audio CX5's & BX8a's,Zoom R24

[This message has been edited by elwoodblues1969 (edited 09-19-2010).]

[This message has been edited by elwoodblues1969 (edited 09-19-2010).]