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Balance, Speed, Stability, Efficiency and Elegance. The M-2500 delivers 500 watts providing audio quality that sounds truly natural!
TAD M-2500 amp on bottom, bsgtechnoloiges qol on top.
Dealer Demo, less than a year old, ligth use, rated 9/10 with a minor nick on top towards back. Full warranty!
New $20,000, sell for $12,000.
Also available - a matching pair of TAD CR-1 speakers w/ custom stands. New $40,500, sell for $26,000 (see our other audiogon ad).
With every listening session, demonstration and sale, TAD Labs continues to add to their audience of enthusiastic followers. The driving force behind this growing collection of avid supporters is TAD’s uncompromising approach to music reproduction. Building on the respect earned by the awesome M600 monoblock amplifier released a year earlier, TAD Labs is proud to introduce the M2500 and M4300 as worthy additions to this growing legacy of superlative amplification.
The 2-channel M2500 delivers 500 watts into 4 ohms x 2 or 250 watts into 8 ohms x 2. The 4-channel M4300 delivers 300 watts into 4 ohms x 4 or 150 watts into 8 ohms x 4. Both amps are designed following five key design guide points... Balance, Speed, Stability, Efficiency and Elegance. The result is two new amplifiers that are the match for any on the world, enabling TAD Labs to continue its mission of providing audio quality that sounds truly natural.
According to TAD Labs Director of Loudspeaker Engineering, Andrew Jones, these new amplifier designs have been highly anticipated, “We have been actively demonstrating our high resolution audio system for dealers and consumers around the world. The arrival of the new M2500 and M4300 give us substantial new flexibility with system configuration and performance design. Since both the Reference One and Compact Reference loudspeakers are designed for bi-wiring, these new amps also enable additional system configurations beyond the ultimate set-up using TAD’s previously introduced M600 monoblock amplifiers.”
M2500 Stereo amplifier, rear panel
Here are some of the ways the new M2500 and M4300 abide by the five design ethics described above: Balance - In order to provide precise speaker drive to the utmost limits, TAD strives for symmetry in both circuitry and structure. By completely separating L and R channels from input to output, along with power supplies and transformers, that are separated between both left and right channels and positive and negative rails, complete symmetry is maintained. Utilizing a bridged transformer-less design with two amps in a balanced configuration, the TAD M2500 and M4300 deliver remarkably clean, robust power across their entire bandwidth.
To provide an overwhelming sense of speed and energy the analog power supply is equipped with a high capacity toroidal power transformer and electrolytic capacitors. Combined with a Class D output stage, the result is high purity amplification with superior high speed response.
The sound quality of a Class D output stage is greatly influenced by the power source. Both the M2500 and M4300 are equipped with large toroidal power transformers that utilize high quality, grain-oriented steel for superior magnetic saturation even during high power output. Low energy conversion loss and low load fluctuation result in an analog power supply with high drive capacity and high speed responsiveness even under abrupt load fluctuations.
And in keeping with the rest of the TAD labs family of beautiful audiophile solutions, the new M2500 and M4300 amplifiers are as beautiful to the eye to behold and they are to the ear to perceive. Their precisely machined chassis are formed from solid blocks of aluminum, while the twin tones of black and silver for the divided upper and lower halves of these designs produce a striking appearance. The elegant, clean design embraces every detail, ensuring that either amplifier will harmonize beautifully with any lifestyle decor.
TAD Labs’ M2500 and M4300 amplifiers will be a foundation of many TAD Labs systems in the days ahead. Their combination of cutting edge engineering and design grants them the full range of musical reproduction capability - from the smallest musical nuances to the sheer massiveness of lifelike orchestral impact. These new amplifiers represent the solution to many audio enthusiast’s dreams.
In order to provide precise speaker drive to the utmost limits, TAD strives for symmetry in both circuitry and structure, with the goal of achieving perfect balance. By completely separating left and right channels from input to output, along with power supplies and transformers that are separated between both left and right channels and positive and negative rails, complete symmetry is maintained. Utilizing a bridged transformer-less design with two amps in a balanced configuration, the TAD-M4300 and TAD-M2500 deliver high output power of 300W/4ch and 500W/2ch respectively.
To provide an overwhelming feeling of speed and energy, the analog power supply is equipped with a high capacity toroidal power transformer and electrolytic capacitors. Combined with a Class D output stage, the result is high purity amplification with superior high speed response. For optimum sound, TAD adopted very low on-resistance power MOSFETs with no lead wires. Maintaining low heat generation thanks to the high efficiency of Class D, the amps achieve high power without heat sinks.
In order to control vibration that affects the sound, the chassis is machined from a 90kg block of aluminum, effectively eliminating all joints other than connections. This helps stabilize the ground potential, further improving sound purity. It also provides both high stiffness and high internal loss, achieving improved sound quality. A three-point cast-iron insulator dampens any vibration transmitted through from the feet.
The sound quality of a Class D output stage is greatly influenced by the power source. The M4300 and M2500 are equipped with large toroidal power transformers that utilize high quality grain-oriented steel for superior magnetic saturation characteristics even during high power output. Low energy conversion loss due to the strong coupling between the primary and secondary winding of the toroidal power transformer, low load fluctuation properties based on parallel winding, along with our proprietary 33,000μF electrolytic capacitors results in an analog power supply with high drive capacity even under abrupt load fluctuations and high speed responsiveness even under abrupt load fluctuations.
The precisely machined chassis is formed from a solid block of aluminum. The twin tones of silver and black for the divided upper and lower halves produces a striking appearance. The elegant clean design, extending to every detail, such as the elimination of visible front panel screws, ensures that either amplifier will harmonize beautifully with any room.
TAD M2500 two channel amplifier
Power output: 500 W / 4Ω, 250 W/ 8Ω(2 channels simultaneously driven, 20 Hz to 20 kHz, T.H.D., 1.0 %)
Rated distortion: Less than 0.05 % (20 Hz to 20 kHz, 250 W, 4Ω)
Signal to noise ratio: 112 dB or higher
Frequency response: 5 Hz to 50 kHz, -3 dB
Gain: 29.5 dB
Input sensitivity/impedance: 1.5 V/220 kΩ(Balance) 0.75 V/47 kΩ(Unbalance)
Power requirements: AC 120 V, 60 Hz (USA), AC 220 V to 230 V, 50 Hz /60 Hz (Europe), AC 220 V to 230 V, 50 Hz (Asia)
Power consumption: 250 W
Power consumption: Less than 0.5 W
Dimensions: 440 mm (W) x 170 mm (H) x 467 mm (D) (17-5/16 in. (W) x 6-5/8 in. (H) x 18-3/8 in. (D))
Weight: 43 kg (94.8 lb)
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