Technical Audio Devices Laboratories (TAD Labs) announced the TAD-M1000TX two-channel power amplifier to replace the TAD-M1000. The company says the TAD-M1000TX uses a design shared with the TAD-D1000TX disc player, TAD-DA1000TX D/A converter and TAD-C1000 preamplifier in the Evolution Series.

TAD says that sources of positive and negative currents that go through a speaker unit’s voice coils must be identical to drive its diaphragm with “utmost precision.” The TAD-M1000TX employs a BTL (bridge-tied load) design that connects two separate amplifiers in a balanced configuration for the left and right channels in the amplification circuit from input through output stages. The company says that in this design, positive and negative power supplies maintain symmetry between them, and all power supply circuits are designed separately for each channel. TAD also says its “meticulous effort” to achieve symmetry between left and right channels and between positive and negative signals did not stop there.
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The TAD-M1000TX is powered by upgraded twin high-capacity dropper toroidal transformers with a power rating of 1 kVA each. To increase the purity of the power supply, TAD says the internal coil of the transformer is directly connected to the power supply circuit, minimizing the contact points with leading wires. Moreover, terminals for directly connected coils, mounting terminals for motherboards and clamping screws are all made of oxygen-free copper coated with nonmagnetic materials to eliminate magnetic distortions.

According to the company, the TAD-M1000TX delivers 500 watts per channel at 4 ohms, which is made possible by the simplified Class-D single-output-stage consisting of power MOSFET devices with ultra-low on-resistance in leadless packages that boast lower power losses and higher-speed responses. The result is “powerful yet responsive” and agile sound reproduction.

The TAD-M1000TX also offers a bi-amping option for compatible speakers. With this option, one TAD-M1000TX 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 separation.

The TAD-M1000TX will be available in November 2024 and will be listed for $24,950.