AVC-A1D
Dolby Digital / DTS / THX Certified A/V Surround Amplifier
■ New DDSC-Digital Circuit
DENON’s original DDSC (Dynamic Discrete Surround
Circuit) -Digital audio technology represents the integration
of all blocks of a surround circuit into a single, high-performance IC to reproduce digital surround sources at higher
levels of sonic quality. The New DDSC-Digital audio circuit
embodies further performance improvements over the original DDSC-Digital circuit, and reproduces superior-quality
sound not only from surround sources but pure audio
sources as well.
The high sound quality of New DDSC-Digital is due in
part to the high-grade signal processing of the 24-bit, 96 kHz
Digital Interface Receiver (DIR). The AVC-A1D not only
allows digital signals input from DVD and other advanced
media to pass directly to the DIR, it also processes them
while preserving their integrity so that even the most delicate
nuances of the music, reflecting the emotions of the artists,
are passed unfettered to the digital signal processor (DSP).
The First A/V Amplifier To Master Movies and Music
DENON, the developer of the world’s first A/V components that combined the magic of Dolby Digital with Lucasfilm’s THX
5.1 technology, now elevates the performance standard with the new AVC-A1D A/V surround amplifier. Packed with virtually
every desirable feature for outstanding home theater and music surround sound enjoyment, the AVC-A1D is the only A/V
component that provides optimized surround sound for both movie soundtracks as well as discrete multi-channel music surround. Powered by the newest high speed dual 32-bit DSP processors, the AVC-A1D includes Dolby Digital as well as dts
decoding, along with Lucasfilm THX 5.1 post-processing, entirely in digital domain - the world’s first A/V surround amplifier
with this capability.
The AVC-A1D is engineered for the future, with eight channel (7.1) inputs for the future multi-channel formats, and 8 channel
pre-amp outputs for a clear system upgrade path. Able to accommodate virtually any present or future source, the AVC-A1D
provides component video switching along with “S” and composite video switching, and nine digital inputs (including one for
RF laser disc). Premium 24-bit, 96 kHz DACs on all six channels with DENON’s exclusive 24-bit Alpha processing for the
main (L/R channels), and a THX Ultra-certified five channel power amp section with an output of 140 watts per channel, all
add up to the best-sounding A/V component available today.
AC-3 RF Input
Analog Input
Digital Input
96kH / 24-bit
96kH / 24-bit
L
R
Front
L
R
Surround
Center
Subwoofer
DF 1
AL 24
Processing
Digital
Interface
Receiver
DF 2
96 kHz/
24-bit
DF 3
96 kHz/
24-bit
32-bit
floating
point
32-bit
floating
point
DF 4
96 kHz/
24-bit
Demodulator
A/D Converter
Master
Volume
Control
DAC 1
DSP 1 DSP 2
DAC 2
DAC 3
96kH / 24-bit
96kH / 24-bit
DAC 4
DAC 5
DAC 6
Dolby
Digital
Pro-Logic
Decoder
DTS
Decoder
THX
Processor
Surround
Simulator
AC-3 RF Input
Digital Input
Analog Input
DSP 1 DSP 2
96kHz / 24-bit
32-bit
floating
point
32-bit
floating
point
L
R
Front
L
R
Surround
Center
Subwoofer
Dynamic Discrete Surround Circuit-Digital Block Diagram
NEW MODEL INFORMATION
*Black version is available.
96kHz / 24-bit
96kHz / 24-bit
96kHz / 24-bit
■ Two 32-bit Floating Point DSPs
The AVC-A1D is equipped with two DSPs that employ
newly-developed 32-bit floating point technology to faithfully process the delicate details of the original sound recording. One of the DSPs is dedicated for use with the Dolby
Digital and dts decoder and the other is used for THX and
surround sound reproduction. The 32-bit digital signals that
are decoded by these two DSPs are then converted at high
resolution into 24-bit signals and passed to the digital filter.
■ 24-bit, 96 kHz D/A Converters for All Channels
The same Multiple 24-bit D/A Converter that is used in
the DVD-5000 has been employed for all channels in the
AVC-A1D—a dedicated converter for each of the five Front,
Center, and Surround channels, plus a 24-bit D/A converter
for the subwoofer—to ensure smooth D/A conversion at high
resolution of 24 bits and 96 kHz for all channels.
■ AL24 Processing for Front Channels
The AVC-A1D includes AL24 Processing, the same
highly-acclaimed analog waveform reproduction technology
that is used in the DVD-5000. AL24 Processing realistically
reproduces subtle background sounds that heighten the
emotional drama of movies, or the delicate residual sounds
that are enjoyed during live musical performances.
■ Discrete Amplifiers with Uniform Power and
Response to All Channels
The wealth of DENON’s technological know-how in pure
audio amplifiers has been tapped to build a powerful, highquality amplifier system for the reproduction of Dolby
Digital. Each channel is configured with its own discrete
power amplifier, all of which deliver equal power and perform with uniform response. The AVC-A1D’s power unit
incorporates a large transformer and other vital parts that
have been developed for DENON’s high-end pure audio
components. The various blocks of the AVC-A1D, such as
the analog section, digital section, video section and microprocessor section, have all been isolated from each other
in order to thoroughly suppress any mutual interference
caused by noise. This design ensures that the extremely
high level of sound quality that is the hallmark of current
and next-generation media remains pure and transparent
from input to output.
■ Built-in DTS Decoder
The AVC-A1D also has a dts Digital Surround decoder
to faithfully reproduce the original sound that was recorded
on sources via a Digital Surround encoder. This features
allows home theater buffs to enjoy at home the same sort
of dynamic power that one can experience in the sound
space of dts-equipped movie theaters. Since the high performance of 24-bit, 96 kHz D/A converters delivers the full
effects of dts Digital Surround to all channels, the sonic
results are completely satisfying.
■ THX Ultra: Advanced Surround Taken to the Hilt
The AVC-A1D is equipped with a THX Processor supporting THX 5.1, an advanced surround technology that
recreates the sound space created at a dubbing studio for
producing the sound tracks of movies. When the digital signal that was processed in the Dolby Digital decoder and the
dts decoder is passed on to the Re-Equalization Circuit and
the Timbre Matching Circuit, the AVC-A1D is capable of
reproducing an ideal sound space for the enjoyment of
multi-dimensional sound.
The AVC-A1D has also cleared approximately 300
requirements to meet the standards of THX Ultra that
Lucasfilm Ltd., the developer of THX technologies, has
established governing audio quality and the operating ease
of other components in the A/V system.
■ A Rich Selection of Surround Modes
Besides the red-hot Dolby Digital + THX 5.1 combination
plus the dts + THX 5.1 alternative being offered for the first
time in the world in a single A/V surround amplifier, the
AVC-A1D provides a wealth of playback options as well.
5-Monaural Construction Power Block
■ Two Sets of Surround Speakers for Music and Movie
Surround
Two sets of surround speaker output terminals, A and B,
have been provided to reproduce the surround sound
tracks more closely to the originally intended ideal.
To recreate the spacious and enveloping ambiance of a
motion picture soundtrack, side-mounted bipolar or dipolar
speakers are most often preferred. These avoid the “point
source” localization problems that plague conventional
direct-radiator speakers, and are best for accurately
re-constructing the motion picture soundtrack’s surround field.
On the other hand, multi-channel music surround sound
is recorded with 3 front channels and 2 rear channels and a
pair of direct-radiating speakers at the rear corners of your
listening room are recommended for the accurate music
surround sound reproduction.
Select these surround speakers when listening to discrete multi-channel music surround and concert video. Only
the DENON AVC-A1D lets you choose between two surround speaker types (and placements) for music and movie
soundtracks, for surround sound without compromise.
■ 6-channel + 8-channel Input Terminals for Future
System Upgrading
The AVC-A1D provides two sets of expansion input terminals, one of which can be used as an EXT IN terminal for
the 8th channel, in case home theaters of the future need
to support program sources with increased numbers of
channels or other developments. By simply adding a stereo
power amplifier, the AVC-A1D system will be able to support 7.1-channel surround sources which are expected to
appear in the future. Along with 8-channel input, a high-precision electronic attenuator will be able to achieve less than
0.1 dB mutual deviation among all channels and adjust volume levels in 1 dB increments.
■ Powerful, Responsive Power Supply
AVC-A1D incorporates two independent power transformers for each power amplifier, preamplifier and microprocessor to ensure a stable current supply for each block
without mutual interference and noise.
■ Icon-based On-Screen Display
The AVC-A1D is equipped with an On-Screen Display
(OSD) featuring icons (pictorial representations) to let you
easily monitor the current operating status. The OSD feature lets you check or change the source you want to see,
listen to or record, and you can also monitor or change the
speakers, surround sound mode, delay time, channel level,
digital inputs or listening parameters. What once required a
number of complicated operations can now be accomplished via a quick glance at the AVC-A1D’s OSD, which
has been refined for greater ease of operation.
■ Personal Memory Plus
The AVC-A1D’s Personal Memory Plus function allows
you to store the parameter of the surround mode for further
sound source customization. A single push of any source
button will instantly recall the settings stored for each of the
sound sources.
■ Multi-function Remote Controller
The dominant theme in the design of the AVC-A1D’s
remote controller has been vastly improved ease of use
from the two aspects of tactile perception and visual
ergonomics. The buttons have been given different shapes
so that they can be recognized by touch in a dark room,
and visually, the buttons’ functions are grouped by color so
that the required buttons are easily found. The buttons also
feature GLO-Key for further ease of operation in the dark.
And buttons that are not so frequently used are arranged
under a cover that can be easily opened when needed.
●
System Call function to execute up to 10 successive
pre-assigned commands at the single touch of a button
● System Remote Control
● Pre-Memory and Programming function for
non-DENON components
Movie Surround Music Surround
MAIN
TRANSFORMER
SUB
TRANSFORMER
POWER BLOCK
PRE-AMP BLOCK
VIDEO BLOCK
DIGITAL BLOCK
CONTROL BLOCK
Independent Power Transformers Block Diagram
System Setup Menu Easy setting of
speaker
configuration
■ Other Features
● Color Component Video Input/Output /
Thoroughly Vibration-resistant Structure
●
Tone Control Circuit (Front L/R, Center, Surround)
● REC OUT Select
● 1 AC Outlet
■ Input/Output Terminals For Every A/V System
●
Audio Inputs
11 Analog Inputs..................... PHONO, CD, TUNER, DVD,
VDP, TV/DBS, VCR-1, VCR-2,
V-AUX, MD/TAPE-1,TAPE-2
6 Analog EXT. Input ............... FRONT L/R, CENTER,
SURROUND L/R, SUBWOOFER
8 Analog EXT. Input ............... FRONT L/R, CENTER,
SURROUND L/R, EFFECT L/R,
SUBWOOFER
5 Digital (Optical) Inputs......... OPTICAL X 5
3 Digital (Coaxial) Inputs ........ COAXIAL X 3
1 Dolby Digital RF Input.......... Dolby Digital RF
●
Audio Outputs
8 Analog PRE OUT Terminals.. FRONT L/R, CENTER,
SURROUND L/R, EFFECT L/R,
SUBWOOFER
4 Analog REC OUT Terminals
... VCR-1, VCR-2, MD/TAPE-1,
TAPE-2
2 Analog Multi Source Terminals
.. L/R
1 Digital (Optical) Out Terminal
.... Optical
●
Video Inputs
2 Component Video Inputs ....... DVD, TV
6 Composite Inputs ................... DVD, VDP, TV/DBS, VCR-1,
VCR-2, V-AUX
6 S-Video Inputs........................ DVD, VDP, TV/DBS, VCR-1,
VCR-2, V-AUX
●
Video Outputs
1 Component Video Input.........MONITOR
4 Composite Outputs ................ VCR-1, VCR-2, MONITOR-1,
MONITOR-2
4 S-Video Outputs..................... VCR-1, VCR-2, MONITOR-1,
MONITOR-2
Power Amplifier Section Same quality amplifier for all 5-channel
Rated output *THD figures are power amp stage values.
Front 140 W + 140 W
(8 ohms, 20 Hz - 20 kHz, THD 0.05 %)
Center 140 W
(8 ohms, 20 Hz - 20 kHz, THD 0.05 %)
Surround 140 W + 140 W
(8 ohms, 20 Hz - 20 kHz, THD 0.05 %)
Dynamic Power 190 W x 2 ch (8 ohms)
310 W x 2 ch (4 ohms)
390 W x 2 ch (2 ohms)
Preamplifier Section
Input sensitivity/ Impedance PHONO (MM) : 2.5 mV/47 kohms
CD, DVD, VDP, TV/DBS, VCR-1, VCR-2, V.AUX,
MD/TAPE 1, TAPE 2, 6-ch EXT., 8-ch EXT. :
200 mV/47 kohms
Output level/Load Impedance FRONT L/R, CENTER, SURROUND L/R, EFFECT L/R,
SUB WOOFER : 1.2 V/10 kohms
VCR-1, VCR-2, MD/TAPE 1, TAPE 2,
MULTI SOURCE : 150 mV/47 kohms
Digital Input Optical VDP, VCR-1, VCR-2, V.AUX, TAPE1(Initial)
Coaxial CD, DVD, TV/DBS (Initial)
RF VDP (Fixed)
Digital Output REC OUT : TAPE-1 (Initial)
RIAA deviation ±1 dB (20 Hz - 20 kHz)
Signal-to-noise ratio (A-weighting) 105 dB (DIRECT)
Tone control Treble : ± 10 dB at 10 kHz
Bass : ± 10 dB at 100 Hz
Video Section
Input Terminal Composite DVD, VDP, TV/DBS, V.AUX, VCR-1, VCR-2 :
1 Vp-p/75 ohms
S-Video DVD, VDP, TV/DBS, V.AUX, VCR-1, VCR-2 :
1 Vp-p/75 ohms
Component Video DVD, TV
Output Terminal Composite VCR-1, VCR-2, MONITOR-1, MONITOR-2 :
1 Vp-p/75 ohms
S-Video VCR-1, VCR-2, MONITOR-1, MONITOR-2 :
1 Vp-p/75 ohms
Component Video MONITOR
General
Power Supply AC 230 V, 50 Hz
Dimensions 434 (W) x 181 (H) x 494 (D) mm
Weight 21.5 kg
Specifications
NIPPON COLUMBIA CO., LTD.
14-14,AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011, JAPAN
Denon Home Page Address: http://www.denon.co.jp
23870199B B
*Design and specifications are subject to change without notice.
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