With more than 130 years of experience, Yamaha has grown to become the world's leading sound company. The M-5000 embodies this spirit with time honoured craftsmanship and market-leading innovation and serves as the epitome of high-fidelity audio reproduction.
Thick wires and screw-type connections contribute to the low-impedance design of the M-5000 - minimising energy loss that would otherwise typically occur in conventional connections and wire assemblies.
The use of screws and brass terminals directly on the block capacitors as opposed to solder promotes a strong, low impedance connection.
As opposed to conventional power amplifier designs whereby power is supplied via a power transistor and the negative polarity is connected to ground, the power supply of the M-5000 is connected directly to each positive and negative side of the output stage.
Completely floating the entire power amp circuit from the ground removes any undesirable impact of minute voltage fluctuations or ground noise.
The design also creates an ideal symmetrical layout for employing MOSFET power amplifiers, improving drivability for low impedance speakers.
The M-5000 has been designed from the ground up to maximise rigidity - reducing unwanted vibration for optimal sonic performance.
Further, employing a mechanical ground concept by fixing the power transformer, block capacitors and heat sink directly to the rigid streamlined construction with bolts ensures they are fully supported and eliminates the influence of vibrations.
Delivering high-fidelity performance, a massive toroidal transformer is utilised with a 3 mm thick pure brass base which suppresses unwanted vibrations.
In addition, the power transformer does not influence the surrounding audio circuits due to less leakage flux.
The drawn-out copper wiring from the winding core contributes to the low impedance design by markedly reducing the loss of energy when compared to conventional designs.
You can find more information here - Yamaha Flagship 5000 Pre Power Amplifier Brochure
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