Marantz ModelP510M

Commentary

This is a stereo power amplifier which is a selection item of Model510M.

Model P510M is 510M with excellent measurement value, and it uses 8 mm thick panel and is given professional name.

The power transistors are series parallel in two stages and two columns. The output stage consists of eight transistors per channel, a total of 16 transistors facing each other.

The power transistor is cooled by a heat dissipation device called a Finger Heat Disi Peter.
This system was developed based on NASA technology and consists of 12 radiating fingers. With this system, turbulence is generated around the 12 fingers with a small amount of air flow. This enables cooling with high efficiency even when the cooling fan rotates at low speed.
In addition, the fan noise is reduced because the speed of the cooling fan is automatically changed to 2 stages by output.

The amplifier circuit is mounted on a 2-layer printed circuit board.
This protects the sensitive semiconductor part from the heat of the power transistor, and the drive stage wiring, which requires capacitance, is patterned on the second layer board with a margin to achieve both compactness and high quality.

Resin and rock powder are press-fitted into the transformer used in the power supply section to eliminate booming by eliminating the internal space.

We use double-sided soldering for parts soldering.

Mahogany wood cabinet was sold separately as an option.

Model Rating

Type	Stereo power amplifier
Rated Output (Double-channel Drive, 20 Hz to 20 kHz)	300W + 300W (4 Ω) 256W + 256W (8 Ω)
Total harmonic distortion factor	0.1% or Less (20 Hz to 20 kHz)
Cross modulation distortion factor	0.1% or Less (20 Hz to 20 kHz, Arbitrary Frequency Combination)
Frequency characteristic	20 Hz to 20 kHz ± 0.1 dB
Input Sensitivity / Impedance	2.25V/25k Ω
Damping factor	100 or More (8 Ω)
Pwer	100 VAC, 50Hz/60Hz
Power consumption	1.32kW
External dimensions	Width 483x Height 178x Depth 361 mm (Width and height are panel size)
Weight	22.2kg
Sold Separately	Mahogany Cabinet WC-P1 (¥ 22,000)

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