Technical Audio Devices Laboratories, Inc., today announced the TAD-ME1TX bookshelf speaker system as the newest addition to its Evolution Series of hi-fi speakers.

The TAD-ME1TX is to replace the critically acclaimed TAD-ME1, which was introduced in 2016. A host of refinements incorporated into the TAD-ME1TX to achieve enhanced audio performance include a tweeter in the Coherent Source Transducer (CST) driver that features a beryllium diaphragm manufactured using our proprietary vapor-deposition technique, just like those found in our higher-end speakers. The TAD-ME1TX has inherited the already proven Bidirectional Aero-Dynamic Slot (ADS) port design from its predecessor.

TAD-ME1TX-SW (shown with TAD-ST3TX-SW stand sold separately)

Main Features

1) 9 cm CST driver delivers ideal single-point-source sound

The TAD-ME1TX boasts TAD’s proprietary CST driver, which controls the directivity of the concentrically mounted midrange and tweeter over an extended frequency range from the point of matching phase. TAD-ME1TX’s 9 cm CST driver achieves clear and solid imaging, as well as natural sound-field reproduction. The midrange cone controls the directional characteristic of the concentrically mounted tweeter to bring the phase and directivity of their output in line in the crossover region. The result is wide-range sound reproduction from 420 Hz to 60 kHz by the CST driver alone, while achieving a natural attenuation characteristic and directivity pattern across all bands.

2) Tweeter features a beryllium diaphragm

The TAD-ME1TX uses a newly developed, light yet rigid 25 mm beryllium diaphragm for its tweeter, manufactured with our proprietary vapor deposition technique. We have applied our computer-analyzed optimization technique called Harmonized Synthetic Diaphragm Optimum Method (HSDOM) in designing the form of the diaphragm. This technique enables the precise control of the diaphragm’s divided vibrations and piston motions, which makes possible wide-range sound reproduction of up to 60 kHz.

3) Midrange features a newly developed magnesium diaphragm with a high internal-loss characteristic

The midrange’s diaphragm made of magnesium alloy achieves lightweight and high internal loss properties. The combination of anodization and coating applied to the surface of the diaphragm gives it additional hardness and a yet greater internal loss. Combined with the suppression of even the smallest resonance arising from where a leading wire is connected to the voice coil, the result is clear, distortion-free reproduction in the midrange. In addition, the arm of the frame basket that houses a magnetic circuit has been redesigned to achieve much greater structural strength and allow smoother propagation of sound waves behind the midrange diaphragm.

4) Woofer features an MACC diaphragm

The 16 cm woofer employs a Multi-layered Aramid Composite Cone (MACC) diaphragm composed of laminated layers of woven aramid fabric and non-woven fabric of different material to deliver a rich, clear sound in the low-frequency-range, as well as a coloration-free sound in the mid-to-low-frequency range. The combination of the refined Linear Drive Magnet Circuit (LDMC) and a corrugated surround made of foamed polycarbonate contributes to outstanding linearity and delivers deep and clear bass. Furthermore, the arm of the woofer basket has been redesigned to achieve greater structural strength to withstand the powerful movement of the woofer and allow smoother propagation of sound waves behind its diaphragm.

5) SILENT enclosure combines structural strength with an outstanding vibration-dampening characteristic

The TAD-ME1TX comes in a SILENT (Structurally Inert Laminated Enclosure Technology) enclosure, which combines sturdy birch-plywood braces with medium-density fiberboard (MDF) panels having a high internal loss to provide superb structural strength and an outstanding low-resonance characteristic. The addition of 5 mm-thick steel panels to the right and left sides of the enclosure further reduces the vibration of the cabinet down to a minimum. Moreover, acoustic absorbent chosen and placed carefully inside the enclosure, based on meticulous analyses of internal standing waves, helps eliminate standing waves that would adversely affect the sound field and imaging performance of the speaker.

6) Bidirectional ADS port design contributes to rich and natural-sounding bass

As its predecessor, the TAD-ME1TX employs the Bidirectional Aero-Dynamic Slot (ADS) port design, which places slit-shaped ports (ducts) inside the right and left side-panels of the enclosure with flared openings to the front and rear to allow a smoother airflow through them. This design helps reduce port noise generated at high amplitude levels and keeps internal standing waves from escaping from the ports, resulting in a rich, responsive bass. The symmetrically placed port openings, both laterally and along the front-rear axis, cancel out vibrations from the port movement to deliver a natural-sounding bass response.

7) Two color variants to choose from to match room decor

The TAD-ME1TX comes in two color variants to offer options to choose from to better match the room decor. In addition to the black finish, which was available to its predecessor, the TAD-ME1TX is also available in new silver white finish. Skilled artisans spend hours finishing each enclosure with meticulous care, beginning with applying high-grade, clear coating to the surface and buffing the base coating and finishing with surface polishing. The TAD-ME1TX comes as standard with non-slip pads to be placed under the enclosure, a cleaning cloth, and a woofer grille having a minimum adverse effect on the speaker’s performance.

8) Matching speaker stand specially designed for TAD-ME1TX (sold only in pairs)

The matching TAD-ST3TX-K and TAD-ST3TX-SWstands are designed to bring out the best of the TAD-ME1TX. They employ a slanted design to suppress the reflection and diffraction of the sound from the speaker and achieve greater structural strength and a high vibration-dampening characteristic.

TAD-ME1TX-K (shown with TAD-ST3TX-K stand sold separately)

Specifications of TAD-ME1TX-K and TAD-ME1TX-SW speaker systems per unit

Type 3-way, bass-reflex bookshelf
Woofer 16 cm cone
Midrange and Tweeter Concentric 9 cm midrange and 2.5 cm dome tweeter
Frequency Response 36 Hz to 60 kHz
Crossover Frequencies 420 Hz and 2.5 kHz
Sensitivity 85 dB (2.83 V @ 1 m)
Maximum Input Power 150 W
Rated Impedance 4 Ω
Unit Polarity LF (+), MF (+), HF (+)
Dimensions 254 mm (W) x 411 mm (H) x 402 mm (D)
Weight 21 kg

Supplied Accessories

Woofer grille
Shorting cable x 2
Non-slip pad x 4
Cleaning cloth
Owner’s manual

Specifications of TAD-ST3TX-K and TAD-ST3TX-SW speaker stands per unit

Dimensions 376 mm (W) x 642 mm (H) x 437 mm (D) (without spikes)
Weight 16 kg

Supplied Accessories for pair

Cone-shaped spike x 6
Tip-resistant spike x 4
Spike holder x 6
Cork sheet x 6
Assembly screw x 16
Screw for mounting speaker firmly on top plate x 4
Owner’s manual

Model Description Color Available

TAD-ME1TX-K Speaker system Black Mid-March 2025
TAD-ME1TX-SW Speaker system Silver white Early April 2025
TAD-ST3TX-K Speaker stand (sold only in pairs) Black Mid-March 2025
TAD-ST3TX-SW Speaker stand (sold only in pairs) Silver white Early April 2025