Integrated Amplifier Incorporating Denon Core Elements of Perfect Sound
PMA-720AE is equipped with an Advanced HC (High-Current) Single Push-Pull
Circuit that enforces Denon’s design concept for pure audio amplification.
This design ensures that you hear delicate musical details, reliably
supported by plenty of power. Playback faithful to the original sound is also
made possible by a circuit board layout that can handle the greater power
from the amplifier section and appropriately respond to the output level and
unique character of the signal. In addition, the internal construction of the
PMA-720AE has been carefully designed to prevent unwanted vibration from
adversely affecting the audio signal.
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 MAXIMISING CONTENT QUALITY