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Inspiring the joy of listening
Technical Audio Devices Laboratories, Inc. (TADL) grew from
the spirit to discover technologies to perfectly recreate the pure
sound of life performances with uncompromising craftsmanship.
We have inherited our philosophy from Bart Locanthi –recognized
across the globe as the ultimate sound technologist–who
believed that genuine technology is true to the basic and that
genuine technology places greater importance on sound quality
than on technology for its own sake. At TADL, we are honing our
technology to create equipment that reproduces musical sounds
that evoke both the energy and impact of life music.
TAD Grand Evolution One Features
TAD-GE1 is the speaker system by using the accumulated
acoustic technology in TAD’s past history and advanced
audio technology in order to realize the emotional sound.
1. Coaxial speaker unit with “CST*1 driver”
The unit is equipped with a coaxial speaker unit “CST driver”
that reproduces controlled directivity over a wide bandwidth
from a phase-matched point, reproducing stable localization
and a natural sound field space. The cone shape of the
midrange is designed to control the directivity of the coaxially
placed tweeter, and by matching the phase and directivity
characteristics of the tweeter and midrange crossover, a
natural attenuation characteristic and directional radiation
pattern are achieved over the entire bandwidth, making the
CST driver alone capable of ultra-wideband reproduction
from 250 Hz to 100 kHz. The CST driver is mounted in a low-
diffraction shaped enclosure to maximize its performance.
Furthermore, ISO (Isolation) drive technology reduces
vibration transmission from the CST driver to the enclosure,
enabling the reproduction of a clear, uncluttered airy sound.
2. Beryllium tweeter and magnesium midrange
diaphragms
The tweeter features a light-weight, highly rigid beryllium
diaphragm. Utilizing our proprietary vapor-deposition process.
The combination of stiffness, low mass, and high internal
damping ensures that the diaphragm resonances are well
controlled and placed well above the range of audibilty.
Magnesium is utilized for the midrange diaphragm. It’s
combination of stiffness, low mass and durability ensure
that the midrange is similarly reproduced with freedom from
resonace and distortion.
INTRODUCTION
3. Adoption of MACS II*2 diaphragm in the woofer
The woofer adopts a MACS diaphragm laminated with
multiple layers of lightweight and highly rigid aramid fiber
and the center cap and cone are integrated into a shell shape
to achieve a rich bass sound reproduction and clear mid-low
frequency reproduction.
4. “SILENT*3 Enclosure” for low resonance
The cabinet uses a SILENT enclosure that achieves high
strength and low resonance by combining high-rigidity
birch plywood for the framework and MDF materials for high
internal loss. In addition, AFAST*4is employed to analyze
standing waves inside the enclosure and reduce low-order
modes. Internal standing waves, which have a negative
impact on the sound image and sound field, are suppressed
by selecting and effectively arranging the optimal sound-
absorbing materials.
5. “Bidirectional ADP*5 System”
A port for bass-reflex operation is located at the bottom of
the enclosure. Horn-shaped openings in the front and rear,
consisting of a 15mm-thick base plate, the bottom of the
enclosure, and a horn plate made of die-cast aluminum,
provide natural and rich bass sound reproduction.
*1 CST: Coherent Source Transducer
*2 MACS II: Multi-layered Aramid Composite Shell (2nd generation)
*3 SILENT: Structurally Inert Laminated Enclosure Technology
*4 AFAST : Acoustic Filter Assisted System Tuning
*5 Bidirectional ADP: Bidirectional Aero-Dynamic Port
