XTZ SPIRIT 11

The tweeter of the Spirit series is a 25mm silk dome, which has already proven its great abilities concerning its power handling and impulse response. It is driven by a high performance magnet system to optimize the sensitivity, dynamics and power handling. The cooling is provided by a low viscosity ferro-fluid and a high power voice coil made of aluminum and copper alloy. Due to the waveguide technology, the relative SPL capability and sensitivity increases, which leads to a minimal distortion at all volume levels. The waveguide controls the dispersion of the Tweeter, to give a similar sound characteristic, independent of the listening angle. Furthermore, the waveguide allows a lower crossover frequency, which makes the dispersion pattern of the Mid/Bass driver match the pattern of the Tweeter. Thus, the overall dispersion is perfectly balanced and controlled. The dome itself has a built-in protection against damage and reverts to its original shape after a gentle push (not recommended, but is a safety feature).

To ensure a mechanically rigid connection to the cabinet, the front waveguide is made of 5mm thick, solid aluminium, covered with rubber to dampen resonances.

The Mid/Bass driver originates from our own development laboratory and is customized to fit the Spirit speakers perfectly. Its membrane consists of acrylonitrile butadiene styrene (ABS) and a long fiber pulp mixture in a special sandwich construction to further increase its stiffness. Due to the lightweight materials, the cone provides an extraordinary stiffness-weight ratio and reduces resonances effectively. 
The suspension spider is made of a mixture of cotton with nomex fiber. To ensure a nearly perfect impulse response, a specially developed and extremely strong magnet system is used. Its linearity provides a long stroke without compression and enables the speaker to handle a wide frequency range, with highest accuracy. 
The voice-coil is made of high temperature aluminium and copper alloy, to ensure effective heat dissipation and maintain linearity. To further avoid any edge resonances, a specially customized butyl-rubber surround is used.

The bespoke crossover ensures a perfect transition between the drive units.
The crossover frequencies, as well as the phase transition are optimized to provide maximum listening pleasure. The waveguide enables us to choose a relatively low crossover frequency point, hence giving very controlled high frequency dispersion characteristics.
The high quality capacitors and inductors ensure perfect signal transmission. To further minimize any unintended influences, the internal cables consist of high purity copper, which minimizes resistance.

Since every room is unique from an acoustical point of view, the speakers of the Spirit series are equipped with several room tuning possibilities. The bass reflex ports on the Rear Panel can be closed with the attached plugs, which alter the Low Frequency characteristics of the speaker.
This enables placement of the speaker near a wall and drive it in sealed mode to compensate for the bass increase due to the wall boundary effect
Furthermore there is a jumper located at the terminals of the speaker, which can be used to adjust the tweeter level to the prevailing acoustics and personal preference.