Denon AVR-1804 - Manual

DTS-ES Discrete 6.1 and Dolby Digital EX with Power Amps for 6 Channels
■ DENON's Basic Design for High-Quality Sound Reproduction
• Power Transformer for High Power Driven
The chassis that supports the large transformer has been
designed to absorb vibration, and the transformer is housed
inside a highly rigid frame to secure it more solidly to the chassis.
In addition, a cushioning material has been placed around the
core of the transformer to minimize interference on the signal
and enable more faithful reproduction of the original sound.
DENON's higher-end models incorporate these low-noise designs,
such as the use of short rings.
• Twin Drive Rectifier
DENON's Twin Drive Rectifier design uses two rectifying diodes in parallel to bring out the
maximum potential of the large transformer. Since the rectifiers power the large block
capacitors at low impedance, they are able to supply ample current to reproduce deep
basses as well as sudden bursts of sound from percussion or other musical instruments.
• Large Aluminum Extruded Heatsink
DENON uses large heatsink made of extruded aluminum. They
have been placed in a design that ensures mostly uniform
temperatures throughout the heatsink so that the output
transistors for all channels can be driven under uniform
conditions. This in turn ensures that all channels respond with
equal performance to the demands of the audio signals.
■ Fully Discrete, Equal Power Six Amplifier Channels, 90 Watts Each
Front 90 W + 90 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
Center 90 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
Surround 90 W + 90 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
Surround Back 90 W (8 ohms, 20 Hz - 20 kHz, 0.08 % THD)
For optimum Dolby Digital and DTS reproduction, the AVR-1804 features high quality,
wideband audio amplification, providing 90 watts power output for each of the six main
channels. A large capacity power supply includes a high current power transformer
along with discrete power output devices on all six amplifier channels for highest dynamic
range and superb reproduction clarity.
■ Single-Channel Surround Back Power Amp for 6.1 Surround and
2 Speaker Terminals for 7.1 Surround
The AVR-1804 is equipped with a total of 6 power amps including one for the Surround
Back speaker to give you more clearly defined sound localization at the rear for 6.1-chan-
nel surround sources such as DTS-ES Discrete 6.1, DTS-ES Matrix6.1, Dolby Digital EX,
and DTS-ES NEO:6. The AVR-1804 also provides you with 2 speaker terminals for the
Surround Back channels, allowing for the ultimate home theater experience in amazing
7.1-channel Surround.
■ 32 bit High Quality DSP
A-high -quality 32-bit DSP “MELODY 32” from Analog Devices has been used in the DSP
processor, placing the AVR-1804 at a higher rank than other models of this class in its ability
to accurately decode and reproduce the superior quality of surround sources.
■ 24 bit, 96 kHz High Resolution D/A Conversion
■ Wide-Range Play Capability for DVD-Audio and SACD
The power amp circuits of the AVR-1804 have been meticulously designed to reproduce
the exceptionally high sound quality with wide frequency response from 10 Hz to 100 kHz.
■ Cinema Equalizer
The sound from movie sources recorded in Dolby Digital, DTS or other
formats emphasizes high-frequency range due to a theater’s front speakers being
placed behind the movie screen. If this sound is reproduced in the home theater
without correction, the high-frequency range is too strong. The AVR-1804 features a
Cinema Equalizer to correct these high-frequency components so that the sound is
clearer and easier to listen to. (For Dolby Digital, Dolby Pro Logic II,
Dolby Digital EX and DTS surround modes)
■ Personal Memory Plus, for Easy Operation
The AVR-1804 includes the Personal Memory Plus function that automatically
remembers the surround mode you last used for each program source, so that you do not
need to select the mode again for that program.
■ On Screen Display
The AVR-1804 lets you make system settings via diaplays on your TV scren from the
comfort of your chair.
■ Acclaimed Customization Feature
As with all of DENON’s high-grade A/V receiver, the AVR-1804 lets you adjust delay
times and other parameters so that you can customize the performance of the AVR-1804
to suit your own home theater and enhance operating ease. The adjustments are easy
to make via a dialog format on the fluorescent display on the front panel. These
customized features are then stored, for each source input and surround mode, in
Personal Memory Plus so constant readjustments are not required.
■ Multi-Function Preset Memory Remote Controller with Glow-keys
The supplied system remote controller features a large selection of remote control
codes to operate other components in your home theater system, including codes for
selected DENON models, along with remote control codes from other manufacturers.
The most frequently used buttons are laid out separately for TV, VCR and DVD, for
maximum ease-of-use.
* Remote control codes cannot be used with the products of other
manufacturers and some DENON products.
AVR-1804
DTS-ES and Dolby Digital EX A/V Receiver
N E W M O D E L I N F O R M A T I O N
AVR18043.QXD 03.7.11 10:04 AM Page 1