TAD Labs M2500TX Evolution Power Amplifier

TAD EVOLUTION POWER AMPLIFIER TAD-M2500TX Heart-thumping, soul-stirring audio experience like never before The TAD-M2500TX power amplifier boasts a completely redesigned circuit layout, upgraded power transformers, and a redesigned machined aluminum chassis, and provides 550 watts of power per channel at 4 ohms. When connected to TAD speakers in the Evolution Series, the M2500TX delivers powerful sound with exceptional clarity, for which every TAD hi-fi component is known. TECHNOLOGIES Perfect symmetry throughout circuitry and layout The ultimate symmetry and balance incorporated into the TAD-M2500TX’s circuitry and layout drives a diaphragm of a speaker with utmost precision. Its BTL (bridge-tied load) design connects two physically and electrically separate amplifiers in a balanced configuration for the left and right channels in the amplification circuit, which produces an incredible 550 watts of power per channel, from input through to output stages. Furthermore, separate power supply circuits and transformers drive the left and right channels and ensure that positive and negative output signals are perfectly symmetrical. Exceptionally high purity and efficiency The internal coil of TAD-M2500TX’s high-capacity toroidal power transformers is directly connected to the power supply circuit. The shape of the cross-section of the transformer core has been redesigned to circular to achieve tighter contact between the core and coils, minimizing unwanted leakage magnetic flux and vibrations. The result is a power supply with greater purity. Extremely low energy-conversion loss, thanks to the strong coupling between the primary and secondary winding of the transformer, and low load fluctuations resulting from parallel winding, combined with TAD’s proprietary 33,000 μF electrolytic capacitors, provide the analog power supply with enhanced driving capability, even under abrupt load fluctuations, and outstanding high-speed responsiveness. Overwhelming responsiveness and pure amplification The combination of an analog power supply circuit featuring twin high-capacity toroidal power transformers and electrolytic capacitors and a Class-D output stage provides the basis for a pure amplification stage and an overwhelmingly high-speed and powerful response. Power MOSFET devices with ultra-low on-resistance in leadless packages enable signals with sharp rising edges. The highly efficient Class-D output stage, which generates minimum heat and eliminates the need for conventional heat sinks, delivers an astonishing 550 watts of power per channel. Meticulous vibration-control design for greater stability TAD-M2500TX’s chassis is machined from a 90 kg solid block of aluminum. Its heavy and joint-free design virtually eliminates an adverse effect of external vibrations and helps stabilize the ground potential to further increase the purity of music signals delivered to speakers. The immense body of the TAD-M2500TX provides both exceptional sturdiness and ultra-high internal-loss characteristics, both contributing to its superb sound quality. The supporting feet at the bottom with a spike structure keep external vibrations from traveling through the feet. Bi-amping option The TAD-M2500TX offers a bi-amping option for compatible speakers. With this option, one TAD-M2500TX can be connected to the tweeter terminals of right and left speakers, and another to their woofer terminals. The bi-amping connection eliminates interference between speaker units and improves their separation. This option brings out the best of amplifiers and speakers, enabling them to deliver sound with exceptional clarity. SPECIFICATIONS Model No TAD-M2500TX Power Output 550 W at 1kHz, 4Ω Rated Distortion Less than 0.05% at 1 kHz, 275 W, 4Ω Signal-To-Noise Ratio 112 dB or higher Frequecy Responce 10 Hz to 50 kHz, +0/-3 dB Gain 29.5 dB Input Terminal (Sensitivity / Impedance) 1.5 V / 100kΩ (balanced input) 0.75 V / 50kΩ (unbalanced input) Power Requirements AC 120 V, 60 Hz (USA) AC 220 V to 230 V, 50 Hz /60 Hz (Europe /Asia) Power Consumption 250 W Standby Power Consumption 0.5 W Dimensions 440 mm (W) × 170 mm (H) × 467 mm (D) (17-5/16 in. (W) x 6-5/8 in. (H) x 18-3/8 in. (D)) Weight 42Kg (92.6 lb) Awards & Reviews Awards SILVER PRIZE Phileweb 2025 Reviews / Reports Catalog & Manuals