Denon pma-2000 Guide De Spécification

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Delicate details on a powerful foundation: 
The hallmark of UHC-MOS single push-pull technology
The ultra-high-current (UHC) MOS was developed and subsequently
praised for its ability to drive speakers while preserving the delicate
details of high-quality music recordings. This amplification device is
capable of delivering peak current as much as 3 to 10 times greater
than that of conventional MOS-FET devices, resulting in a successful
balance between power to drive the speakers and ability to maintain
the integrity of delicate musical nuances. From the timbre created by a
violin soloist who gently lifts the bow from the strings in a quiet final
moment to the grandiose strength of a full orchestra playing in fortissimo,
the UHC-MOS single push-pull circuit ensures you will hear all the
breadth and details of this sound.
Leakage Canceling (LC) Mounted Twin Transformers
for Wide Dynamic Range and Low Noise
By employing a large magnetic circuit with low magnetic flux density,
the power transformer achieves superior response characteristics
capable of accommodating musical signals with a broad dynamic
range even in areas of magnetic saturation. The LC mount, which
serves to eliminate mutual interference caused by magnetic fields and
other factors, significantly reduces leakage flux which is a source of
noise inside the amp. The result is a powerful speaker drive that
ensures both remarkably transparent speaker output and low noise.
The voltage amplification stage and the coiled wiring of the phono
equalizer power supply have also been separated, and the transformer
for the control circuit that controls signal relays and other functions
have been separated as well, to thoroughly eliminate mutual interference
between the circuits.
Powerful high-current dynamic power circuit 
with newly-developed large-capacity block capacitor for audio
High-current Schottky barrier diodes in the rectifier circuit have been
selected for their low-noise characteristics and high-speed response to
provide high-power support for the expressive power of the UHC-MOS
circuit. The combination of Denon's newly-developed large-capacity
block-type electrolytic capacitor for audio in the power section and the
UHC single push-pull circuit supplies plenty of clean current required
by the speakers for the entire audible frequency range.
Chassis divided into 6 blocks
The power amp block in the PMA-2000 IV R has been designed in a
twin monaural configuration separating the left and right channels to
ensure high sound quality free of external noise and mutual interference
among circuits. To provide thorough shielding at the signal level, steel
plates of 1.6 mm thickness coated in black have been used to divide
the chassis into 6 blocks, a design that preserves sound quality by
preventing interference among the blocks and faithfully reproduces the
sonic ambience of the original recording.
■ 
Wide-Range Play Capability for DVD-Audio or SACD
The power amp circuits of the PMA-2000 IV R have been meticulously
designed to reproduce the exceptionally high sound quality with wide
frequency response from 10 Hz to 100 kHz in advanced, high-quality
digital sources such as DVD-Audio and SACD
PMA-2000 IV R
Integrated Amplifier
N E W   M O D E L   I N F O R M A T I O N
Powerful yet Sensitive, the Newly-developed Large-capacity Block Capacitor 
Provides Greater Support for the Outstanding  Expressive Power of UHC-MOS.
The PMA-2000 IV R is loaded with an UHC-MOS single push-pull circuit, leakage canceling (LC) mounted twin transformers, and highly rigid chassis
divided into 6 separate blocks, and features a newly-developed large-capacity block capacitor in the power section. This new feature provides
greater support for the outstanding expressive power of UHC-MOS and produces a more spacious, dynamic sound from high-quality digital
sources such as DVD-Audio and SACD. 
The PMA-2000 IV R is also equipped with a power amp direct input terminal that lets you use the PMA-2000 IV R as a stereo power amp. You can
also harness the superior performance of the PMA-2000 IV R for use as a power amp for multi-channel output.
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