TAD has announced the TAD M1000TX two-channel power amplifier. The 29-kilogram M1000TX is the latest addition to the company’s Evolution Series of hi-fi components and comes in black and silver finishes.
Replacing 2019’s TAD M1000, TAD ’s new TAD-M1000TX features a host of refinements, including a redesigned circuit topology and power transformers, to deliver what the company claims is a powerful sound with exceptional clarity. Of course, the TAD-M1000TX is built along the lines of the other members of the Evolution Series, namely the TAD D1000TX disc player, TAD DA1000TX digital-to-analog converter, and TAD-C1000 preamplifier .
Ultimate symmetry in circuit topology
Sources of positive and negative currents passing through the voice coils of a speaker driver must be identical in order to drive the diaphragm with the utmost precision. To achieve this, the TAD-M1000TX uses a bridge-tied load (BTL) design that connects two separate amplifiers in a balanced configuration for the left and right channels in the amplification circuit from the input to the output stages. In this design, positive and negative power supplies maintain perfect symmetry, and all power supply circuits are designed separately for each channel.
The painstaking effort to achieve ultimate symmetry between left and right channels and between positive and negative signals did not stop there. The designers redesigned the grounding point, which serves as a reference point for symmetry, not only electrically but also structurally.
Transformers with high capacity, purity and efficiency
The TAD M1000TX is powered by improved dual high-capacity toroidal transformers rated at 1kVA each. To increase power purity, the transformer’s internal coil is directly connected to the power circuit, minimizing contact points with the lead wires. In addition, the terminals for direct-connected coils, motherboard mounting terminals, and terminal screws are all made of oxygen-free copper, coated with non-magnetic materials to eliminate even the slightest magnetic distortions.
The cross-sectional shape of the transformer core has been redesigned, replacing the square shape of its predecessor. The circular design improves contact between the core and the coils, minimizing unwanted flux leakage and vibration. The result is a power supply with greater purity and responsiveness, contributing to exceptionally accurate drive of speaker diaphragms.
500 Watts per channel power into four Ohms
The TAD-M1000TX delivers an astonishing 500 watts per channel into four ohms. This is made possible by the simplified Class D single-output output stage consisting of power MOSFET semiconductors with ultra-low resistance in conduction mode.
Precision design for vibration control
The TAD M1000TX’s heavy chassis is supported by a three-point support structure with internally inverted spikes, isolating the chassis from external vibrations. According to the manufacturer, minimal contact with the surface on which the TAD M1000TX stands prevents external vibrations from traveling through the feet and adversely affecting circuits and components inside the chassis. This comprehensive vibration management design results in a more condensed and energetic audio reproduction that preserves the spatial nuances of the music.
Rugged, oversized, high-quality rear-panel speaker terminals, similar to those found in our Reference Series amplifiers, reduce mechanical and electrical stress on connected speaker cables for improved stability.
Bi-amping option
The TAD M1000TX offers a bi-amping option for compatible speakers. With this option, one TADM1000TX can be connected to the tweeter terminals of the right and left speakers and another to their woofer terminals. The bi-amping connection eliminates interference between speaker units, improving their separation. This option brings out the best in both amplifiers and speakers.
Price and delivery information
The TAD M1000TX is expected to be available for delivery in November 2024.
Technical Specifications
- Power: 500 Watts at 1 kHz, four Ohms
- Nominal distortion: less than 0.05% at 1 kHz, four ohms
- S/N ratio: 112 dB or higher
- Frequency response (+0/-3 dB): 10 Hz to 50 kHz
- Gain factor: 29.5 dB
- Cinch input: 0.75 Volt / 50 kohm
- XLR input: 1.5 Volt / 100 kohm
- Power consumption, operating: 250 Watt
- Power consumption, standby: 0.5 Watt
- Dimensions (W x H x D): 440 x 148 x 479 millimeters
- Weight: 29 kilograms
