Joseph Audio RM7XL - monitor/bookshelf speaker in beautiful Cherry finish. Only available in Maple or black finish now, we have a pair in Cherry. The RM7XL has the full measure of the dynamics and resolution that have made Joseph Audio Speakers famous. The RM7XL’s sound is made possible by several key Joseph Audio technologies: •Metal cone woofer Aluminum cones are extremely rigid, resulting in very clear dynamic sound free from the common midrange resonances that mar the performance of conventional plastic or paper cones. This woofer is equipped with an extended pole piece that acts as a "phase plug" extending the usable dispersion of the woofer at the top end of its range, and displacing any resonances that could form inside the cavity of a conventional dustcap. • Dual Section Dome Tweeter - These latest generation sonatex dome tweeters offer sweet smooth extended highs, without any of the "oil-can" resonances found in metal domes. The result is a natural sounding treble range that reveals all the detail and beauty of the music. •Asymmetrical Infinite Slope crossover - the patented Infinite Slope Crossover optimizes the interactions between the drivers, so the sound that comes from the woofer is seamlessly fused with that of the tweeter. It also optimizes the sound of each the drivers, permitting the use of such exotic materials as aluminum cones, while effectively silencing the ringing that such drivers can exhibit in conventional implementations.