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TAD M600 Mono amplifier

Technical Audio Devices Laboratories,Inc.(TADL) Our goal is to discover technologies to perfectly recreate the pure sound of life performances with uncompromising craftsmanship.

TAD M600 Mono Amplifier

The basic concept of the Tad Labs M600 is the realization of total symmetry and the fusion of technologies into one perfect form to achieve the ultimate in sound reproduction. The BTL (Bridged transformer-less) design is created with total symmetry. Every aspect has been examined and optimized: The twin power transformers, the parallel positioned electrolytic capacitors, and the layout of the components on the circuit board. All are designed to be symmetric with regard to influences such as temperature change, magnetic fields and vibration.

The greatest benefit of balanced circuitry is that virtually no electric current flows through the ground. The self-contained heat sink shields the circuitry from the large signals that powers the speakers, thus preventing any potential difference. The balanced amplifiers ground potential is thereby completely isolated.

For an amplifier to transmit the input signal with complete accuracy to the speakers the circuit should be as simple as possible. To this end the M600 mono block amplifier is designed to achieve its voltage amplification in just one stage. Combined with current feedback, the amplification stage achieves extremely stable performance. This makes it possible to simplify the phase compensation circuit and eliminate the output choke. Additionally situating the circuit board directly in front of the rear panel allows the shortest possible signal path from input to output. With the large heat-sink separating the circuit board from the power circuitry, interference from magnetic and electric fields is minimized.

In order to bring the ideal into reality in design and construction the M600 relies on parts of only the highest quality. PPE (Polyphenyl Ether), commonly used in communication satellites, is combined with 135um thick oxygen-free copper foil to create our unique circuit boards. Permittivity is reduced, the capacitance of the pattern is as small as possible and signal transmission losses up to the very high frequencies are minimized. The core of the 10kg (22 lb) transformer is wound with insulating sheets and 2.6mm diameter heavy copper wire to form our exclusive independent winding power transformer. With a power supply using four custom built 33,000uF capacitors, every circuit detail has been studied and optimized to ensure the highest quality.

In order to ensure the absolute maximum product quality the Tad Labs M600 is the beneficiary of total precision at every point in its construction process. The utmost care is exercised in maintaining the quality of every part. One example is the extremely high level of technology that is utilized for the cutting of the ventilation ducts in the aluminum top panel. To achieve the absolute quality demanded by Tad Labs products all components are developed in a custom workshop and hand assembled by veteran engineers worthy of being called audio craftsmen. This meticulous assembly process uses torque-regulated screws to prevent any distortion in the casing, resulting in a product that truly can be considered a masterpiece.

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TAD M600 Specifications

  • Power output 600W / 4 ohm, 300W/ 8 ohm 20 Hz to 20 kHz, T.H.D. 0.2 %
  • Analogue Inputs: XLR
  • Input impedance 1.5 V 220k ohms (Balanced)
  • Gain 29.5dB
  • Rated THD less than 0.03% (20 Hz to 20 kHz, 300 W, 4 ohms)
  • Frequency response 1Hz-100Khz +/-1dB
  • Size 516mm X 307mm X 662mm
  • Weight 90kg
  • Price £30,995 per mono amplifier two (2) amplifiers required £68,995


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We are one of the foremost digital audio specialists in the country with over 25 years of specialist experience in this area, from CD players to high resolution playback we can deliver a sound that will delight.


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