Denon PMA 1520AE Brochure

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PMA-1 520AE

Integrated Amplifier

Ulthfmvwlfi/RF

o E NON

Premium Silver

Black

RICH SOUND FROM VARIOUS MUSIC
SOURCES THANKS TO ADVANCED UHC-MOS
SINGLE PUSH-PULL OUTPUT CIRCUIT

The PMA-1520AE's remodeled Advanced UHC-MOS Single
Push-Pull Circuit for instance or the twin transformers with
leakage cancelling technology prove, that Denon always finds
ways to advance their famed 2~channel products. The Precision
Direct Mechanical Ground Construction thoroughly suppresses
vibration thus minimizing adverse influences on the output signal.
The power transformer, a major source of vibration, has been
float" mounted using a variety of vibration-resistant materials

and a radiator stabilizer. It further owns separate power supplies

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for analogue and digital circuits. A chassis construction with
independent blocks and the large highgrade volume potentiometer
further suppress external noise and unwanted interferences
between the parts. All relevant ingredients have been strictly
selected to deliver the high sound quality for which Denon is
renowned. The high-performance phono equalizer makes the
PMA-152OAE the best choice also for vinyl lovers. Everything is
protected by a thick aluminum front panel with the Denon logo

engraved.

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Advanced Ultra-High Current (UHC)-MDS Single FushrPull
Circuit for balancing Power and Details

The amplifier features Advanced UHC (Ultra High CurrentlrMOS
technology that utilises a minimum number of highrcurrent ampli
fier elements to balance advanced speaker drive capabilities and
improved sound quality. Advanced UHCVMOS is an ideal amplifier
whose power supply performance is superior to that of bipolar
transistors and incorporates the sound quality advantages of
MOSVFETs. The Advanced UHCaMOS is provided in a single pushr
pull configuration that eliminates devtations in the amplification
stage and balances high power with delicate musical details.
This circuit mastertully repmduces the full sonlc range, from the
delicate musical nuances to the powerlul climaxes of rich musical
expression.

A new Dual FET has been adopted for the input stage of the power
amp. This featttrerrich Dual FET suppresses the adverse influence
of heat changes on sound, contributing to stable operation. Also,
since a Cascade Bootstrap Circuit has been employed m the first
stage of the differential amplifier circuit, superior amplification
with negligible misalignment in frequency phase is now possible.

Direct Mechanical Ground Construction to minimise unwanted
vibration

The PMA features a construction that thoroughly suppresses the
adverse influences of vibration and electrical noise. Compared to
previous models, the centre of gravity has been lower where the

NEW AND UPGRADED FEATURES

- Advanced UltrarHigh Current (UHCiMOS Single
PushrPull Circwtwith new type dual FET transistorfor
more transparency and details

- Leakagercancellingrmounted twin transformers

- Highrgrade volume control for precise adjustment

- Highrperformance phono equaliser

- Parts strictly selected for high sound quality

Denon S a trademark or registered trademark ot D&M Holdlngs, inc.
- All space can be sutured to change
~ Avallable in Black and Premium Silver

EAN PMAi SEOAEEKEZ 4532i lessons Black

PMAi SZOAESPEQ 45321leaso753 Premium Silver
PMAi SZOAEEKEZGB 45321i6369746 Black
PMAi SZOAESPEQGB 45321leaso753 Premium Silver

power amplmer board has been mounted closer to the bottom of
the chassis, a constntction that protects the circuitry from vibra
tion. A twin monaural configuration with HR symmetry has been
adopted for the power amplifier block. And since circuits with
different signal levels have been separated, they are thoroughly
protected from mutual interference or noise. These design im
provements contribute to a highly transparent, expressive sound.

Leakage-cancelling-mounted twin transformers

Two transformers have been connected in parallel to dramatically
improve electrical and magnetic characteristics. The Leakage
Cancelling (LC) mounting system, a method of cancelllng mutual
magnetic influences, has been used to minimise the leaking of
magnetic flux, a source of noise inside the amp. The transformers
were mounted with a plate between them and the chassis. Unlike
conventional models, this plate is dualrlayered. A combination of
special resins and vibrationrreststant materials has also been used
to pmduce a floating effect that prevents adverse influences from
affecting sound quality.

Highvgrade volume control for precise quality management
The highrgrade volume control, an element that significantly influr
ences the duality of sound from an amplifier, is the same motor
driven volume used in the highrclass top model. Denon engineers
carefully tested several types of volume controls before deciding
that this was the one that best bmugm out the expressive power
of sound in a class of its own.

STATE-OF-THE-ART DENON SOLUTIONS

FOR MAXIMISING CONTENT OUALITV

- 2X14O W (4ohm)

- Shottky diodes and selected pans

- solid heat sink, to suppress vibration

- Microprocessor Stop Mode

- Goldrplated speaker terminals

- Vibrationrresistant design with Direct Mechanical
Ground Constntction

- Highrcurrent, dynamic power supply, to support high speed
and large current flow

- Minimum signal paths, to protect signal purity

- Wide range playback, supporting SuperAudio CD and
High Resolution Audio as FLAC HD or DSD

Technical information

Power ampliner erection
Rated output 70 w + 70 w
120 Hz - 20 kHz, a chins, T.H D. o 07%)
140 w + l40 w

it kHz, 4 ohms, T,H D, o 7%)

Total harmorllc dlstomon D.Ol% (rated output -a as, 3 ohms. 1 kHz)
Preampmler section

Input sensitivity/Impedance

PHONO MC 0.2 rer/tDD ohms
PHONO MM 2.5 mV/47 kohms
LlNE l25 mv/45 kohms (Source Direct. OFF)

Denon Europe
11

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Slqnal-to-noisre ratio

PHoNo Mc 74 as (o 5 "iv rrtput)
PHoNo MM 39 as (5 mv lnputi
LlNE «18 dB

Tone control

Treble 1 a dB at 10 kHz
Bass xEdEattDDHz
General

Power supply AC 230 v, 50 Hz

Power coneurrlotlort 295 w (startooy, 0.2 wt
DimensionlexHxDl 484x 134x410mm
Walght to l kg

High-current, dynamic power supply, to support high speed
and large current flow

Lowrnoise Schottky barrier diodes, well known for its superior
switching characteristics, have been used in the rectifier circuit.
The Schottky barrier diode provides ample current capacity to
accommodate ongoing successions of large bursts in sound
while preservmg its power and stability. Lower impedance has
been achieved by doubling the normal thickness of copper foil
used in the power supply circuitry, a design that adds stability to
the current supply. The use of custom parts for the block capacir
tor, thoroughly tested for their contribution to high sound quality,
further underscores Denons uncompromising approach to audio
technology and impeccable sound.

Minimum signal paths, to protect signal purity

Signal paths have been made thoroughly simple and straight to
ensure a pure playback sound. The minimization of signal paths
prevents signal degradation between circuits. In the amplifier
stage, minimum signal paths reduce noise entering the ground
circuit, a fundamental component in signal amplification, and
stabilized ground potential. When the operating foundation of the
amplifier circuit is clear, the playback sound is also clear.

EASE-OF-USE

- System remote control unitto control not only the amplifier
but also a CD player and NetworkAudio player

- Large size volume control knob for precise adjustment

- Power Amp Direct input for easy integration in a
Multichannel AV System

- Auto Standby and low power consumption at standrby 0.2 W

_

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