Vintage DENON Amplifier PMA 501

Vintage DENON Amplifier PMA 501
- 100V Made in Japan
- 59,800yen (around the 1977 time)
- 2x 50 W
- With phono crosstalk canceller

The Integrated Amplifier which carries the newly developed PCC system in order to pull out the characteristic of a record.
The cost cut is achieved giving composition almost equivalent to PMA-701.

PCC (Phono crosstalk canceller) is equipment which adds and negates a reverse cross talk to the cross talk of a phone pickup system, and it is operating two knobs using the attached record for adjustment -- the most sensitive frequency band to a lug -- about -- an improvement is possible to -40dB.

The power amplifier part consists of differential amplification whole page direct connection OCL circuits, it is low impedance power supply circuit composition, and a new style power transistor, such as double epitaxial structure and the Mie diffusion structure, is adopted as an output final stage, respectively.

In order to protect a speaker from an operation mistake or an accident, speed of response builds in the very quick reliable protection circuit.
Moreover, in consideration of the influence on sound quality, the relay of special structure is adopted also about a relay.

In order to improve the cross talk by interference between channels, the mutual intervention is reduced by separating the power source of the circuit composition which made the way become independent 2 system, and a power circuit with much current, and the power source of a preamplifier circuit with little current.

In order for the small signal sent from a record player to prevent deteriorating by leading about and the change-over switch of wiring, a phone input circuit is made into one line, and the input terminal is made to link with equalizer amplifier directly.
A shield line and stray capacitance could be made small by this, and input impedance is improved.

In order to improve a dynamic cross talk, 2 power transformer systems are adopted as a power-source part, and also it has Puri Maine another winding wire power transformer structure.

จัดไป 5,000 บาท (ไม่รวมส่ง)

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