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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. The chassis is divided to enable efficient placement of circuits so that left and right signal paths
do not interfere with each other and negatively affect sound quality between the two channels.
s 80 W + 80 W. More Power, and Greater s Leakage Canceling Dual Power Transformers
Dynamic Range via UHC Ultra High Current The PMA-2000R features dual parallel-connected twin trans-
Single Push-Pull Circuitry formers with vastly improved characteristics in the magnetic
A high-current UHC-MOS amplification device has been used and coiled wire circuits as originally developed for the
to boost the power supplied to the UHC single push-pull circuit- DENON POA-S1 monaural power amp. The transformers
ry. This is an innovative design by DENON that finally resolves have also been "leakage canceling" (L.C.) mounted in order
the conflicting problem of how to produce a solid capacity to to eliminate mutual interference caused by magnetic fields
drive the speakers while preserving the delicate details of the and other factors. As a result, leakage flux from the power
music. The PMA-2000R provides 80 watts per channel into transformers, a potential source of noise, is suppressed to a
8 ohms with nearly double that into 4 ohms to drive virtually any minimum, enabling the PMA-2000R's power supply section
speaker system. Superior current linearity ensures a stable to supply clean, high-quality DC energy to the output stages.
supply of current to the speakers, bringing out all of the dynam-
ic range irrespective of impedance or efficiency. 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 amplifi-
cation device capable of delivering a peak current of 120A to
the output stage, as much as 3~10 times greater than that of Two LC mounted transformers Two transformers positioned
at same polarity
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 amplifi-
cation operation.
Comparison of single push-pull output current characteristics
(Source: DENON)
UHC single push-pull BJT single push-pull
Leakage cancelling (L.C.) mounted dual power transformers
s Rectifier Circuit Accommodating High-Speed, s Highly Rigid, 6-Block Separated Chassis
Large-Capacity Current The highly rigid chassis of the PMA-2000R is based on the
Advanced technology that was developed for the DENON twin monaural construction featuring independent power amp
PMA-S1 integrated amp has been used in the rectifier circuit blocks for the left and right channels in order to eliminate
of the PMA-2000R. A large rectifier bridge with superior abili- degradation in sound quality caused by noise and mutual
ty to supply high current and a first recovery diode with dra- interference between the circuits. In addition, circuits han-
matically accelerated operating speed have been connected dling signals of different levels are also isolated in their own
in parallel so that the PMA-2000R can accommodate both separate blocks, resulting in a sophisticated 6-block design
high speed and high current, to ensure true low impedance that preserves signal purity all the way from input to output.
drive capability.
s Large, Gold-Plated Speaker Terminals
Supporting Bi-Wiring
s High-Performance MM & MC Phono Stage
s Premium Parts Selected for Best Sound Quality
High current, high voltage, low ESR storage capacitors
Specifications
s Power Amp Section
Rated output, both channels driven 80 W + 80 W (8 ohms, 20 - 20 kHz, 0.07%THD)
160 W + 160 W (4 ohms, DIN 1 kHz, 0.7%THD)
Total Harmonic Distortion 0.01% (-3 dB rated output, 8 ohms load)
s Preamplifier Section
Input sensitivity/Impedance
PHONO 2.5 mV/47 kohms (MM), 200