Denon PMA-1520AE BI08-11Z プリント
製品コード
BI08-11Z
Advanced Ultra-high Current (UhC)-MOs single Push-Pull
Circuit for balancing Power and Details
The amplifier features Advanced UHC (Ultra High Current)-MOS
technology that utilises a minimum number of high-current ampli-
fier elements to balance advanced speaker drive capabilities and
improved sound quality. Advanced UHC-MOS is an ideal amplifier
whose power supply performance is superior to that of bipolar
transistors and incorporates the sound quality advantages of
MOS-FETs. The Advanced UHC-MOS is provided in a single push-
pull configuration that eliminates deviations in the amplification
stage and balances high power with delicate musical details.
This circuit masterfully reproduces the full sonic range, from the
delicate musical nuances to the powerful climaxes of rich musical
expression.
Circuit for balancing Power and Details
The amplifier features Advanced UHC (Ultra High Current)-MOS
technology that utilises a minimum number of high-current ampli-
fier elements to balance advanced speaker drive capabilities and
improved sound quality. Advanced UHC-MOS is an ideal amplifier
whose power supply performance is superior to that of bipolar
transistors and incorporates the sound quality advantages of
MOS-FETs. The Advanced UHC-MOS is provided in a single push-
pull configuration that eliminates deviations in the amplification
stage and balances high power with delicate musical details.
This circuit masterfully reproduces the full sonic range, from the
delicate musical nuances to the powerful climaxes of rich musical
expression.
A new Dual FET has been adopted for the input stage of the power
amp. This feature-rich Dual FET suppresses the adverse influence
of heat changes on sound, contributing to stable operation. Also,
since a Cascade Bootstrap Circuit has been employed in the first
stage of the differential amplifier circuit, superior amplification
with negligible misalignment in frequency phase is now possible.
amp. This feature-rich Dual FET suppresses the adverse influence
of heat changes on sound, contributing to stable operation. Also,
since a Cascade Bootstrap Circuit has been employed in 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
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
power amplifier board has been mounted closer to the bottom of
the chassis, a construction that protects the circuitry from vibra-
tion. A twin monaural configuration with L/R 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.
the chassis, a construction that protects the circuitry from vibra-
tion. A twin monaural configuration with L/R 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 cancelling 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 dual-layered. A combination of
special resins and vibration-resistant materials has also been used
to produce a floating effect that prevents adverse influences from
affecting sound quality.
Two transformers have been connected in parallel to dramatically
improve electrical and magnetic characteristics. The Leakage
Cancelling (LC) mounting system, a method of cancelling 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 dual-layered. A combination of
special resins and vibration-resistant materials has also been used
to produce a floating effect that prevents adverse influences from
affecting sound quality.
high-grade volume control for precise quality management
The high-grade volume control, an element that significantly influ-
ences the quality of sound from an amplifier, is the same motor-
driven volume used in the high-class top model. Denon engineers
carefully tested several types of volume controls before deciding
that this was the one that best brought out the expressive power
of sound in a class of its own.
The high-grade volume control, an element that significantly influ-
ences the quality of sound from an amplifier, is the same motor-
driven volume used in the high-class top model. Denon engineers
carefully tested several types of volume controls before deciding
that this was the one that best brought out the expressive power
of sound in a class of its own.
high-current, dynamic power supply, to support high speed
and large current flow
Low-noise 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 preserving 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 capaci-
tor, thoroughly tested for their contribution to high sound quality,
further underscores Denon’s uncompromising approach to audio
technology and impeccable sound.
and large current flow
Low-noise 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 preserving 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 capaci-
tor, thoroughly tested for their contribution to high sound quality,
further underscores Denon’s 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.
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.
EAN
PMA1520AEBKE2
4582116369746
Black
PMA1520AESPE2
4582116369753
Premium Silver
PMA1520AEBKE2GB
4582116369746
Black
PMA1520AESPE2GB
4582116369753
Premium Silver
Denon is a trademark or registered trademark of D&M Holdings, Inc.
* All specs can be subject to change
* Available in Black and Premium Silver
NEW AND UPgRADED FEATUREs
• Advanced Ultra-High Current (UHC)-MOS Single
Push-Pull Circuit with new type dual FET transistor for
more transparency and details
more transparency and details
• Leakage-cancelling-mounted twin transformers
• High-grade volume control for precise adjustment
• High-performance phono equaliser
• Parts strictly selected for high sound quality
• High-grade volume control for precise adjustment
• High-performance phono equaliser
• Parts strictly selected for high sound quality
sTATE-OF-ThE-ART DENON sOlUTIONs
FOR MAXIMIsINg CONTENT QUAlITY
FOR MAXIMIsINg CONTENT QUAlITY
• 2x 140 W (4ohm)
• Shottky diodes and selected parts
• solid heat sink, to suppress vibration
• Microprocessor Stop Mode
• Gold-plated speaker terminals
• Vibration-resistant design with Direct Mechanical
• Shottky diodes and selected parts
• solid heat sink, to suppress vibration
• Microprocessor Stop Mode
• Gold-plated speaker terminals
• Vibration-resistant design with Direct Mechanical
Ground Construction
• High-current, dynamic power supply, to support high speed
and large current flow
• Minimum signal paths, to protect signal purity
• Wide range playback, supporting Super Audio CD and
• Wide range playback, supporting Super Audio CD and
High Resolution Audio as FLAC HD or DSD
EAsE-OF-UsE
• System remote control unit to control not only the amplifier
but also a CD player and Network Audio player
• Large size volume control knob for precise adjustment
• Power Amp Direct input for easy integration in a
• Power Amp Direct input for easy integration in a
Multichannel AV System
• Auto Standby and low power consumption at stand-by 0.2 W
Denon Europe
Beemdstraat 11
5653 MA Eindhoven
The Netherlands
www.denon.eu
|V01|
Technical information
Power amplifier section
Signal-to-noise ratio
Rated output
70 W + 70 W
PHONO MC
74 dB (0.5 mV input)
(20 Hz - 20 kHz, 8 ohms, T.H.D. 0.07%)
PHONO MM
89 dB (5 mV input)
140 W + 140 W
LINE
108 dB
(1 kHz, 4 ohms, T.H.D. 0.7%)
Tone control
Total harmonic distortion
0.01% (rated output -3 dB, 8 ohms, 1 kHz)
Treble
± 8 dB at 10 kHz
Bass
± 8 dB at 100 Hz
Preamplifier section
General
Input sensitivity / Impedance
Power supply
AC 230 V, 50 Hz
PHONO MC
0.2 mV/100 ohms
Power consumption
295 W (Standby: 0.2 W)
PHONO MM
2.5 mV/47 kohms
Dimensions (W x H x D)
434 x 134 x 410 mm
LINE
125 mV/45 kohms (Source Direct: OFF)
Weight
16.1 kg
Ports
IN
Phono (MM/MC)
x 1
Audio input (incl. Phono)
x 6
Power Amp Direct
x 1
Out
Pre Out
x 1
Rec output
x 1
Speaker out (Bi-wiring)
A/B