We continue to realize our ideas at XCELSUS, we never stop innovating. Every day, we challenge ourselves to explore new ideas and push the limits of what’s possible in loudspeaker design. No concept is too bold or unconventional in our pursuit of the most natural, lifelike sound imaginable.

Our products are a reflection of over 35 years of loudspeaker design expertise from our chief designer, Dawid Koniarski, whose passion for acoustic perfection continues to drive our evolution. Each generation of Xcelsus products builds upon this legacy—refined, reimagined, and relentlessly optimized.

Our entry-level starts with the Primum Series, followed by the Ultra and Ultra SQL lines, leading up to the high-end Xcelsia Competition Series, and culminating with the flagship Signature Series for the ultimate in sound quality.

Below, we’ve highlighted some of the key innovations and technologies that set Xcelsus apart from the rest.

Phase Shift Technology
Because no two vehicles offer the same listening position – thanks to unique seating layouts, interior materials, and speaker placements – achieving the correct phase alignment between drivers can be a challenge.

With our Phase Shift Technology, Xcelsus passive crossovers feature a built-in switch that instantly reverses tweeter phase by 180°, allowing you to easily toggle polarity on the fly and fine-tune your soundstage to perfection – no wire disconnections or system reconfiguration needed.

Spiderless Suspension System
In the pursuit for the most dynamic, open & revealing midrange experience we have spent hundreds of hours perfecting our “less is more” approach to a midrange driver.

Our innovative Spiderless Suspension System (SSS) uses a specially engineered surround to maintain optimal cone linearity, eliminating the mechanical resistance caused by a conventional spider. The result is freer cone movement, allowing for stunningly detailed, smooth, and natural sound reproduction.

Listening to Xcelsus midrange drivers featuring SSS technology. You’ll rediscover your favorite tracks with newfound clarity and emotion.