At NAMM this year I went over to the Yorkville booth. I had been told by many of you that these are really good keyboard amps. I've been selling Roland, Peavey, Barbetta for many years and I'm always looking for good products to offer my customers. After meeting with the sales rep for California and the sales manager from Canada, they offered to send me out two keyboard amps and 3 electric acoustic guitar amps. They arrived today and I'm very happy with them. I did an A/B with the K200 vs the roland KC500 and the Yorkville was so much better. Better high frequency, much more bass and it had much more power then the roland. The Roland sounded a bit like it was breaking up at medium to high levels and the Yorkville just kept getting louder. The Yorkville has a retail price of $699.00 and the Roland has a retail price of $799.00. Also, Yorkville has a 2 year transferable warranty and Roland has a 1 year. The Yorkville also has 2 XLR mic inputs where the Roland has 1 XLR input. Both feature 15" speakers.
I then compared the Yorkville K100 with a 12" speaker at a retail price of $579.00 and compared it to the Roland KC300, the Peavey KC100 and the Barbetta 22C and again I liked the Yorkville better.
If the quality is as good as the sound, I'm sure I'll be selling lots of these in the future.
By the way, Ketron was using all Yorkville amps at their booth at NAMM and they recommend these amps to their customers.
George Kaye
Kaye's Music Scene
Reseda, California

Hi George

How about the weight and size on these Yorkvilles?

Scott Langholff

Ketron keyboards were going through powered monitors, however Aldo was playing his Solton Accordian through a Yorkville keyboard amp and the statement from both Lou and Aldo was that they recommend Yorkville Keyboard Amps to customers who ask for their advice.
George Kaye
Kaye's Music Scene
Reseda, California

How much does the smaller amp weigh?

The weight for the three models are as follows:
50KB weighs 32 lbs
100KB weighs 49 lbs
200KB weighs 63 lbs
You can find all the specs at www.yorkville.com
George Kaye
Kaye's Music Scene
Reseda, California

I originally made a post on this subject that I later thought was not a good idea .So I deleted the post .

Dano

Yes but the Yorkvilles are all MONO keyboard amps. How many mono keyboards do you sell these days? For the same price as the Yorkville K200 you can get a Motion Sound KP-200s which is 200 watts in stereo. I don't know why mono amps are being pushed for stereo keyboards...

If the Motion Sound kp200 amp is stereo, there cant be much seperation correct? Being the speakers are in one cabinet?

George...
We've been using Yorkvilles up here in Canuck land for years. They're built like a brick sh*thouse and sound terrific. Glad you got to hear them.
You get around the mono/stereo ? by using the Yorkville P.A.'s

The Motion Sound amps come with a spatial expander. I've heard that they have an uncanny effect of making it seem like the speakers are farther apart. Without the expander, the speakers are tilted at what appears to be a 25 degree angle from eachother, and I heard that the stereo signal is pretty good without the expander.

I purchased the Motion Sound KP-100S, two 8 inch speakers and 50 watts per channel. It's coming out in April. I will give a review of it when I get it. The KP-200S, two 10" speakers and 100 watts per channel, got a great review in February's keyboard magazine.

Beakybird

The Yorkville keyboard amps really do sound great for the $$$.

Yes, the stereo expander really makes the Motion Sound amps... they'd sound like two stereo speakers turned back-to-back without it. The expander is just a phase inverter like the kind used by so-called "vocal eliminators" so it does have the side effect of reducing the volume of instruments that are in the center of the mix and enhancing the reverb overall, but I find this to be a pleasing effect that tends to act a little like compression and give a little more "blend" to the sound. The clarity is there as well as power to spare, all in a very portable cabinet that weighes 55 pounds. And yes, the sound does seem to come from all around the amplifier - the effect carries over into the room also. You can't really imagine it until you hear it.

I was using (and still have) various PA components for amplifying my keys and they all work fine too, but Motion Sound put everything I need in one compact box with several bonuses: there are stereo XLR direct outputs on the back of the KP-200s so I can simply plug my EONs in and either expand my sound field or create a surround-sound presentation, and there is a "click input" that does not get passed back out the XLR direct outputs which is perfect for taking a vocal monitor feed when playing with a band - so the KP-200s can act as both keyboard and vocal monitor. It also has a lo-z mic input with it's own controls, so at a recent corporate gig my KP-200s did double-duty as both my keyboard rig and the guest speaker's PA. It was in a mid-sized auditorium and the KP-200s was more than enough.

As long as the mind-set for stereo keyboard amplification is "use a PA" or "buy two" then there won't be much demand for innovation, which is why nearly all keyboard amps look alike right now. I wouldn't even bother owning a keyboard amp if the Motion Sound series hadn't come along. Like me, you really need to hear it to get it.

The Motion Pro KP-200S has 2 * 10" speakers with no tweeters or mid range. Isn't that required?
Terry says the Altec Lansing 621's are great. They have tweeter, mid, bass, and sub.
Some complain that the Yamaha PSR550 don't have the tweeters connected. Is that necessary, since the Motion Pro don't have them?
Starkeeper

Where did you get that idea? The Motion Sound amps have 3.5" horns. Here's the URL: http://www.motion-sound.com/keypro_amplifiers.htm

Oops. Your right.
Thanks Pro for setting me straight. That Motion Pro looks real good, thanks for putting us onto it.
Starkeeper