Yamaha MSR250 Powered PA Speaker

The MSR250 delivers the ideal blend of power, performance, features, and portability for an exceptionally wide range of applications. A newly designed class D amplifier delivers 250 watts of clean, dynamic power via a high-performance 10-inch cone woofer and 1-inch titanium-dome compression driver that match up perfectly for smooth, uncolored response from 55 Hz to 20 kHz. The woofer has an oversized 2.5-inch aluminum voice coil-a size you'd normally see on a 15-inch woofer-that contributes to outstanding sound and durability. With all this power and performance the big surprise is how light and manageable this advanced powered speaker is.

High-quality Portable Power
The MSR250 delivers the ideal blend of power, performance, features, and portability for an exceptionally wide range of applications. A newly designed class D amplifier delivers 250 watts of clean, dynamic power via a high-performance 10-inch cone woofer and 1-inch titanium-dome compression driver that match up perfectly for smooth, uncolored response from 55 Hz to 20 kHz. The woofer has an oversized 2.5-inch aluminum voice coil-a size you'd normally see on a 15-inch woofer-that contributes to outstanding sound and durability. With all this power and performance the big surprise is how light and manageable this advanced powered speaker is.

Asymmetrical Cabinet Design
Sound bouncing around inside a speaker cabinet can have a significant effect on the sound that comes out. The biggest problem is standing waves that commonly occur between parallel surfaces. Standing waves can interfere with and color the speaker's output, thus degrading sound quality. The standard solution is acoustic insulation material inside the cabinet, which does help, but it doesn't address the underlying problem of cabinet geometry. Yamaha has gone the extra mile in designing the MSR250 and MSR400 cabinets, employing a unique configuration that eliminates parallel interior surfaces and therefore the root cause of standing waves. Acoustic insulation is also applied to effectively deaden the space inside the enclosure. Elimination of unwanted sound inside the cabinet means that optimum sound can be delivered to where it counts the most: your audience.

Ferrofluid Cooling
Any technology that involves power also involves heat, and this can result in compromised performance if heat generation is not effectively controlled. The current driving a speaker generates heat in the voice coil that, in extreme cases, can cause the speaker to burn out. But even if the speaker doesn't actually burn out, that heat still results in inefficiency and non-linearity that degrade overall performance. As the power and heat increase, the resistance of the voice coil increases as well, causing power compression, a loss in acoustic output that reduces the system's dynamic range. This problem is overcome in the MSR series by placing an advanced ferrofluid in the voice coil gap, where it serves to conduct heat away from the voice coil with much greater efficiency than air. The results are smooth, natural frequency response and dynamics as well as stable performance even under heavy use.

Built for Heavy Duty Use
Although it's lightweight and easy to handle, the MSR250 is exceptionally durable and will take the most demanding tours in stride. It's also designed to be used in a variety of situations, including normal upright and wedge-style floor monitor operation.

Other Features
 LINK OUT JACK:MSR250's link out jack can be used to connect multiple units for higher power and expanded coverage. This outputs the mixed signals input via the INPUT1 and 2/3 jacks. * Visual Clip Indication:MSR250 features an LED power indicator as well as a clip indicator that warns of impending clipping, allowing the user to make appropriate adjustments to the source level.

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