The Diamond 25 Mk II stands out with its unique speaker configuration for a 2.5-way design. The upper woofer, manufactured by Norwegian Seas, has been redesigned by our engineers, and the changes are apparent at first glance. We replaced the dust cap with a phase plug, which provides a more faithful reproduction of the crucial midrange while eliminating the coloration of its higher range caused by resonances in the volume under the cap. It resulted in vocals having even more space and depth while retaining the character of its predecessor. The low end is reproduced by the proven speaker from the first generation, equipped with a long and lightweight aluminum-copper voice coil, providing an adequate supply of dynamics, speed, and versatility in reproducing the lowest registers. The two drivers have been brought closer together, making them work better together in the acoustic field, and the sound source is consistent and less sensitive to changes in listening height. In addition, both speakers are made using Spider Ring technology, designed to enhance control over the manufacturing process of high-end products. The tweeter from Danish Scan-Speak has also been updated with a more powerful neodymium magnet system, reduced voice coil mass, and eliminated ferrofluid. It delivers even better detail and microdynamics at the highest frequencies, with greater efficiency and control. Also new is the dual resonance chamber design, which further reduces the primary resonance of the tweeter. An additional advantage of this speaker is reduced nonlinear distortion.