PMA-520AE integrated amplifier features a High-Current Single-Push-Pull
circuitry to achieve both strength and detail in music playback, which is
Denon’s focus for its pure audio amplifiers. The relay switch used for CD and
Phono input contains an inert gas to prevent the occurrence of noise that can
negatively affect the signal. In addition, durable parts strictly selected
for their contribution to sound quality, such as the large-capacity block
capacitor for the power supply circuit, high-quality sound carbon resistors,
and high-quality sound capacitors, are also used. Each individual part
employed in configuring the circuits reflects this emphasis on high fidelity.
For improved convenience, the remote control unit that comes with the
PMA-520AE includes the main functions that control Denon CD players.
Current (HC) Single-Push-Pull Circuit for musical detail and power
PMA-520AE incorporates HC transistors with 2 to 3 times the electrical
current supply capability of conventional power transistors for audio.
Denon’s acclaimed HC Single-Push-Pull Circuit has been inherited from its
high-end models which, together with a fully discrete amplifi er design,
produces a powerful sound fi lled with beautiful musical details.
high-capacity power supplycircuit for HC Single-Push-Pull
PMA-520AE's power circuit uses a block capacitor that Denon engineers have
jointly developed with a parts manufacturer and a Schottkybarrier diode that
features low internal resistance for low loss, short recovery time, and
negligible rectifying noise. This highly stable electrical current supply
further brings out the expressive power of sound produced by the HC
PMA-520AE's tone control and power amplifi er circuit have been carefully
adjusted to secure a frequency response of up to 100 kHz during actual use.
Also, improvements in the volume circuit suppress noise in the amplifier to
achieve high sonic resolution. These features and others give the PMA-520AE
plenty of latitude to handle the wide dynamic range of high-grade audio
sources such as Super Audio CD and DVD-Audio.
transformer with separate power supplies for analogue
coiled wire within the power transformer for the audio signal and control
circuits has been separated to eliminate mutual interference and adverse infl
uences on sound quality. The PMA-520AE also has a separate transformer to
minimize power consumption when in "standby". Ensuring a more
environmentally friendly design
system remote control
friendly with low power consumption in stand by and auto power off
higher quality speaker terminals
Denon solutions for maximizing content quality