The finest in bass under any aspect...
The TERA subwoofer system is the indispensable complimentary product to our mid-high frequency loudspeakers such as YOCTO, FEMTO, EXA and YOTTA. This monolithic transducer has been designed to be used in pairs or in scalable power systems requiring more and more power. The subwoofer is constructed entirely with 15 mm aluminum sides, bolted together from inside the cabinet. It includes two long excursion 10" Ferrite-magnet drivers delivering 15" subwoofer output from a more compact enclosure.
We addressed some of the most common issues that affect high end subwoofers such as internal cabinet resonances, structural integrity, absence of coloration, integration of professional and dependable electronics. TERA is also a scalable solution where higher power is achieved by adding more identical units achieving unprecedented performance.
Standing waves generally take place if there is a correlation between the internal dimensions of the box and the half wavelength of any given frequency. TERA is a cube with internal sides measuring just 300 mm leading to resonances that are far away from the usable frequency range the system is intended to operate, as confirmed by the extremely low distortion.
While far more expensive compared to a common MDF cabinet, an aluminum structure eliminates 99% of the structural vibrations imposed by the low frequency drivers. The absence of structural Instabilities can be identified in the smooth 2nd harmonic behavior. The symmetrical arrangement of the drivers effectively cancels out transducer cone mass induced vibration within the enclosure resulting in a vibrationally balanced system.
In terms of sound purity closed (sealed) cabinets are the best choice because they provide only the cancellation of the energy generated by the back side of the drivers. Though Reflex cabinets, transmission lines and horns are more efficient, they add coloration to music, something sealed systems don’t do.