Heilsbronn, Germany – (July 24, 2025)
ASCENDO Immersive Audio GmbH announced the next generation of its groundbreaking infrasonic subwoofers today, including THE64 SUB PRO PASSIVE INFRASONIC SEALED 64-inch model and THE100 SUB PRO PASSIVE INFRASONIC SEALED 100-inch models. Building on the legacy of its iconic 50-inch and 80-inch designs, these monumental woofers redefine what is possible in ultra-low-frequency reproduction.
“We are proud to be the leader in infrasonic bass. Our continuous innovation in this category translates to an extremely high-performance, emotionally connected experience that enriches state-of-the-art home theaters and music reproduction systems with bass you can feel,” says Geoffrey Heinzel, Co-Managing Partner of ASCENDO. “These two new subwoofers are the largest in the world for home cinema, and are incredibly powerful, efficient, and fast.”
Every aspect of these two new massive subwoofers—from motor and suspension to enclosure and damping—has been re-engineered to deliver deeper extension, greater linearity, and unparalleled sonic precision at infrasonic frequencies, including:
ASCENDO’s Large Subwoofer Performance Improvements
An upgraded suspension system with quad spiders, repositioned and optimized, delivers significantly more excursion across the entire range, both linear and nonlinear. Advanced spider materials include carefully selected spider fabrics and resins, providing higher compliance and noise-free operation, even at extreme excursions.
Additionally, at ultra-low frequencies, noise performance has been enhanced beyond what any previous woofer design has achieved. An optimized, shallower compliance curve means improved linear motion and control. Finally, lowered driver resonance, combined with optimized enclosure dimensions (outlined below), enables even lower f3 points for deeper bass extension.
Subwoofer Cabinet Improvements
New single-piece, custom-designed surround tooling creates a surround shape that supports greater and more linear excursion. Additionally, optional application-specific enclosures for THE64 and THE100 feature improved internal bracing that builds on ASCENDO’s already world-class standard for rigidity and control.
ASCENDO has also fine-tuned its multi-density internal damping materials to lower the system’s resonance frequency—significantly reducing Q—and achieve perfect impulse response with ultra-low group delay. Finally, the enclosure depth has been increased to 100 cm, further extending the frequency response into the infrasonic region.
Serviceability Improvements to ASCENDO Large Subwoofers
Improvements to the previous versions of ASCENDO’s large infrasonic subwoofers include a new field-replaceable re-cone kit, developed to allow quick and efficient serviceability in the field.
These advancements position the THE64 and THE100 subwoofers as the most advanced infrasonic transducers ever produced—delivering breathtaking power and precision that must be heard to be believed.
THE64 replaces ASCENDO’s THE50 SUB PRO PASSIVE INFRASONIC SEALED model, and THE100 replaces THE80 SUB PRO PASSIVE INFRASONIC SEALED. The new model names now reflect the pro industry method of including the driver basket in the dimensions.
