User manual DENON PMA-2000R PRODUCT BROCHURE

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Manual abstract: user guide DENON PMA-2000RPRODUCT BROCHURE

Detailed instructions for use are in the User's Guide.

[. . . ] NEW MODEL INFORMATION PMA-2000R Audiophile Integrated Amplifier The PMA-2000R uses dual power transformers to provide extended high current capability with substantial power output. [. . . ] Superior current linearity ensures a stable supply of current to the speakers, bringing out all of the dynamic range irrespective of impedance or efficiency. s Leakage Canceling Dual Power Transformers The PMA-2000R features dual parallel-connected twin transformers with vastly improved characteristics in the magnetic and coiled wire circuits as originally developed for the DENON POA-S1 monaural power amp. The transformers have also been "leakage canceling" (L. C. ) mounted in order to eliminate mutual interference caused by magnetic fields and other factors. As a result, leakage flux from the power transformers, a potential source of noise, is suppressed to a minimum, enabling the PMA-2000R's power supply section to supply clean, high-quality DC energy to the output stages. Comparison of transformer leakage flux (Source: DENON) s The UHC-MOS High-Current Amplification Device To obtain the ability to bring out all the delicate nuances of sound and the need for dynamic speaker drive, the PMA-2000R has adopted a high-current UHC-MOS amplification device capable of delivering a peak current of 120A to the output stage, as much as 3~10 times greater than that of conventional MOS-FET devices. The current supply capacity of the UHC-MOS has been improved to exceed even that of bipolar transistors while preserving the high-quality sound of MOS-FETs. This ideal amplification device also incorporates single push-pull technology to eliminate variations in amplification operation. Comparison of single push-pull output current characteristics (Source: DENON) Two LC mounted transformers Two transformers positioned at same polarity UHC single push-pull BJT single push-pull Leakage cancelling (L. C. ) mounted dual power transformers s Rectifier Circuit Accommodating High-Speed, Large-Capacity Current Advanced technology that was developed for the DENON PMA-S1 integrated amp has been used in the rectifier circuit of the PMA-2000R. A large rectifier bridge with superior ability to supply high current and a first recovery diode with dramatically accelerated operating speed have been connected in parallel so that the PMA-2000R can accommodate both high speed and high current, to ensure true low impedance drive capability. s Highly Rigid, 6-Block Separated Chassis The highly rigid chassis of the PMA-2000R is based on the twin monaural construction featuring independent power amp blocks for the left and right channels in order to eliminate degradation in sound quality caused by noise and mutual interference between the circuits. [. . . ] 14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-11, JAPAN Denon Home Page Address: http://www. denon. co. jp [. . . ]

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