Designed and Built in North America
Elegant fine-grain brushed aluminum cover and extruded aluminum
handles complement the heavy-gauge 10-awg steel chassis.
Blue vacuum-fluorescent front-panel display and LEDs lend an elegant
finishing touch to the D1’s unmistakeable high-end demeanour.
The D1 can also be ordered with optional rack-mount handles.See
your Anthem™ Statement Dealer for more information.
Dual Motorola® DSP Engines
Our own precision Digital Signal Processing design uses two
Motorola® DSP 56367 engines—among the most powerful in the
industry. Each is rated at 150 million instructions per second,
providing DTS® 96/24 with full bass management capabilities and
enough processing power to handle even the most complex program
material with matchless precision.
Dual 3Mbit 8ns External Cache Memory
The D1’s external cache memory is large enough to ensure that
the powerful DSP engines never run out of resources, even while
running the most complex algorithms.
State-of-the-Art Video Switching Circuitry
State-of-the-art video switching circuitry is laid out on isolated,
independent two-layer glass-epoxy circuit boards, eliminating
the potential for signal interference. The hand-designed circuit
board layout (not done by auto-routers) was optimized by maximizing the groundplane area and increasing the number of
connections (vias) between the groundplanes on the top and
bottom surfaces of the boards.The outcome is exceptionally low
noise, an absence of crosstalk and increased protection against
stray electromagnetic energy.
Massive Toroidal Power Transformers
Two con s e r v at ively rated toroidal transformers provide separate
Main power (rated at 99 VA) and Standby power (rated at 26 VA).
These low-impedance transformers are shaped to minimize stray
magnetic field radiation and tuned to minimize hum. Magnetic
shielding further reduces residual transformer noise.
Ultra-fast soft-recovery high-efficiency rectifier diodes by General
Semiconductor® (UG4D and UG8DT) contribute to an impressive
Signal-to-Noise ratio: 107 dB on Analog-Direct inputs; 101 dB on
Analog-DSP inputs; and 104 dB on Digital inputs.
Power supply filter capacitance of 46,000 µF maintains low-ripple
voltages with higher loads, ensuring minimal noise and a smooth,
continuous and instantaneous flow of high-current power.
The D1 Better By Design
Independent Digital Audio Board
Statement designers chose,once again, to use high-grade audiophile
operational amplifiers (Burr-Brown™ OPA-2132’s) and high-grade
resistors to reduce DC offsets for greater signal precision. Wima film
capacitors supply excellent attenuation and minimize distortion,
particularly at higher frequencies.As part of the modular design
approach, the independent audio board also facilitates easy future
hardware upgrades.
Four-Layer Hand-Designed Motherboard
The D1’s hand-designed four-layer motherboard features extensive
use of power- and groundplanes—all critical signal paths are surrounded by groundplanes.While a painstaking, dedicated design
process, it ultimately provides a significant reduction in ground
impedance, an absence of crosstalk and exceptionally low noise.
All operational amplifiers (including those used in Bass Management)
are audiophile-grade Burr-Brown™ (OPA2132) FET-input type. These
op-amps significantly reduce DC offsets for greater signal precision as
well as providing immunity from “pops” during switching.
Renowned Wima film capacitors (MKS 2 metallized polyester and
MKP 2 metallized polypropylene) provide excellent attenuation and
minimal distortion.
The higher-frequency clock crystal provides smoother user operation
and significantly faster response from the front-panel display, with
precise attenuation.
Battery back-up for clock—avoids resetting the clock in the event of
a power outage.
2
1 Preamplifier
What makes an edge-of-the-art high-end preamplifier? Some say the
quality of its component parts.For them the D1 exhibits an impressive
résumé—best-quality Crystal® analog attenuators, high-value ADC
reference voltage decoupling capacitors, audio-grade Nichicon®
MUSE® Series UK signal-coupling capacitors, low-ESR electrolytic
OS-CON SVP capacitors, and the list goes on. For others, it’s in the
details—the number of design features compared with other highend preamplifiers on the market. One simply has to glance at the D1’s
Design Overview (pages 5 and 6) to see why it is one of the most
comprehensive, feature-laden high-end preamplifiers on the market.
Finally,some use price to measure a preamplifier’s worth—it stands
to reason the more expensive the preamplifier, the better the performance. Or does it? The D1’s sonic presentat ion rivals that of the most
expensive preamplifiers. Highs are refined,open and silky smooth.
Mids are rich, full and exceptionally revealing. Bass presentation
is articulate, with extraordinary power,depth and pace while still
capturing the delicate edge of each leading bass note.
3
Better By Design (continued)
Nine High-End Components in One:
•
Preamplifier
•
24-bit/192-kHz Precision Upsampler
•
Analog-to-Digital Converter (ADC)
•
Digital-to-Analog Converter (DAC)
•
Surround-Sound Processor (SSP)
•
HDTV Video Switcher
•
Mult iro om/Wh ole-House Entertainment Control Center
•
Built-in FM/AM Tuner
•
Headphone Preamplifier
3 Analog-to-Digital Converter (ADC)
Our use of the highest-quality ADCs essentially eliminates ultrasonic
noise and distortion in the 20 kHz to 80 kHz frequency band. Dual
independent six-layer converter boards use separate analog and digital planes as well as separate power- and groundplanes for remarkably low noise. The AKM® AK5495A ADCs are capable of up to 24bit x 192-kHz resolution.
Analog input level is controlled through a balanced configuration of
six highest-quality stereo Crystal® CS3310 analog attenuators
arranged in differential mode—one for each channel of the 6-channel
input. This arrangement promotes greater dynamic range and contributes to an impressive reduction in distortion.
High-value (1,000 µF) ADC reference voltage decoupling capacitors
provide the lowest possible THD+N below 1 kHz.
Low-ESR electrolytic OS-CON SVP capacitors are used to decouple the
input stage bias reference voltage ensuring lower noise and distortion.
Aud io-grade Nichicon MUSE Series UK signal-coupling capacitors
with low-voltage coefficient ensure minimal distortion and low
microphonics reducing the ADC’s sensitivity to vibration.
All Digital-to-Analog Conversion (DAC) uses a reconstruction filter
as the final step in the conversion process.Without this filter, recreating t he original signal would not be possible. The side-effect of this
filtering,however, is a harshness in the upper frequencies—a result of
audible errors in phase- and frequency-response. The best high-end
DAC desig ns go to great lengths to minimize this distortion, with
very good results. The D1,however, does even more …
UPSAMPLING: Increases the sampling rate of the incoming digital
signal. This allows the reconstruction filter to operate at a higher
frequency, making it less intrusive in the audible bandwidth. While
outboard Upsamplers can be purchased as an add-on component,their
output is restricted to a maximum of 96 kHz due to the bandwidth
limitation of S/PDIF (RCA/Toslink) and AES/EBU digital connections.
When outboard Upsamplers are used with SSPs or separate DACs
capable of 192 kHz they will, in reality, never operate at better
than 96 kHz. In addition, they only operate on 2-channel PCM, not
on decoded Dolby® Digital or DTS® program material.
The D1 includes its own built-in state-of-the-art Upsampler incorporating Analog Devices’ AD 1896 and converts the sample rate of all
incoming digital signals to 192 kHz.Since this is done completely
inside the D1 there are no digital connections to limit the upsampling
frequency. Our D/A converters then operate at their full 192 kHz
capability. And unique to the D1,our Upsampler also operates on all
decoded Dolby® Digital and DTS® program material.
OVERSAMPLING: Along with upsampling, the D1’s DACs also incorporate 128X oversampling to increase the sample rate to 24.576 MHz,
thereby ensuring the best phase- and frequency-response possible.
This combination of upsampling and oversampling allows the D1 to
use much gentler 3rd-order Bessel reconstruction filters.Measurable
results are profoundly superior, reflecting exceptionally flat frequency
response and THD+N in the upper frequencies up to twenty times
lower than some of the best high-end outboard DACs.
Sonic performance is astounding—smoother high-frequency
response,superior detail,better image focus—in essence, a far more
transparent window on the original performance. While this is enormously beneficial for music it is even
more beneficial for home theater. Since
the D1’s Upsampler operates on all
formats and all channels,the result is a
much higher level of transparency for
both multichannel music and movies.
2 24-Bit/192-kHz Precision Upsampler
4 Digital-to-Analog Converter (DAC)
Superior digital-to-analog conversion in the D1 is courtesy of our very
high-quality DAC design. Here again, we have essentially eliminated
ultrasonic noise and distortion in the 20 kHz to 80 kHz frequency
band. Our six-layer converter boards use separate analog and digital
planes as well as separate power- and groundplanes for the lowest
noise possible. Since the D1 also includes our own built-in stateof-the-art Upsampler (see page 3) to convert the sample rate of any
incoming digital signal to 192 kHz,the DACs are able to run at the
highest speed (192 kHz),regardless of the incoming digital bitstream.
The result is extremely low background noise up to almost 100 kHz.
AKM® AK4395 converters operate at their full 24-bit x 192-kHz resolution and switched-capacitor output filters significantly reduce
the DAC's sensitivity to rapid fluctuations in the bit rate during
the conversion process.
Aud io-grade Nichicon® MUSE® Series UK signal-coupling capacitors
with low-voltage coefficient ensure minimal distortion and low microphonics—dramatically reducing the DAC’s sensitivity to vibration.
By eliminating the potential for errors in timing, our DAC’s highaccuracy clock generator (49.152 MHz,±0.001%) makes a substantial
contribution to distortion-free performance.
6 HDTV Video Switcher
The remarkable D1 boasts highest-quality video circuitry allowing
you to switch all video sources without degradation right up to the
very highest High-Definition TV (HDTV) progressive video output
of 1080p (line doubled 1080i). With its buffered video design, when
running longer cables, routing video through the D1 for switching
can actually improve video quality.
Progressive scan DVD-players (480p) and HDTV (720p or 1080i)
require Component Video connectors (Y/Pr/Pb).Running these video
signals through an inferior quality switcher may cause loss of picture
detail. To prevent picture degradation, the D1 provides Component
Video switching with a bandwidth of 100 MHz for the “Y” connection
(Pb and Pr require only half the bandwidth). And our specification
covers the entire video signal path—from input to output.
Be wary of products claiming HDTV video capability. Some manufacturers reveal only the bandwidth of the switcher,they do not give
specifications for the entire video circuit.The D1 is fully HDTV 1080p
capable. In addition to its extremely well-designed video circuit and
layout, the D1 uses the highest-quality video devices (not just ones
that might “get by.”)
9 Headphone Preamplifier
The superb private listening provided by the D1’s built-in headphone
preamplifier is a result of our high-quality design and use of the finest
quality d iscrete component parts.Power supply rails of ±15 VDC in concert with the Motorola® MC33078 operational-amp used in the gain
stage accommodate an extensive volume range, particularly useful with
high-impedance headphones.Renowned Wima MKS 2 metallized polyester film capacitors ensure ultra-low distortion at higher frequencies.
With a dedicated fully discrete output stage our headphone preamplifier
also features separate Volume,
Bass, Treble and Balance controls,
allowing you to make changes
independently of your Main room
settings.You can also choose to
have your headphones operate
along with Main speakers, or turn
Main speakers offwhen the headphone plug is inserted.
5 Surround-Sound Processor (SSP)
No matter which surround-sound mode you want to use,it’s available
on the D1. The industry standards (with their full complement of
processing options) are here—Dolby® and DTS® as well as some very
successful surround formats of our own—AnthemLogic–Music™ and
AnthemLogic–Cinema™ and of course all of the latest THX®modes
(see Design Overview,pages 5 and 6). In the D1, surround sound is
cleaner and clearer not only because of our use of highest-quality
op-amps and capacitors, but also due to our precision upsampling
on all channels! The result is a level of transparency and precision
in the surround soundstage that, until now, was simply unavailable!
For any digital input,the D1 selects the correct format automatically;
or take any 2-channel stereo source and tailor your own Dolby®, DTS®
or THX® listening experience; or use one of our own proprietary modes
for up to 7.1 output! Three automatic memory functions—Presets,
Last Used and On-The-Fly settings—allow you, or anyone else in your
family, to switch from source to source, or program to program and
have the D1 automatically recall your settings.Our powerful memory
capability makes it easy to enjoy all of the exceptional multichannel
music and home theater sound that the D1 provides.
7
Multiroom/Whole-House
Entertainment Control Center
In addition to its role as an edge-of-the-art music preamplifier/
home-theater processor, the D1 plays another important role—that
of high-end whole-home entertainment control center. The D1’s
whole-home focus is as much about distributed video as it is about
distributed audio—making it possible (and simple) for you to
direct and adjust audio and video program material throughout
your home.
The Main Path provides video and multichannel audio for your main
music and home theater room. Zone 2 and Zone 3 Paths are
independent of the Main Path and of each other.Selectable by Source,
they provide video and 2-channel analog-audio output with volume,
bass, treble and balance controls to two completely separate zone
outputs. The Record Path provides video, 2-channel analog-audio,
and digital-audio record outputs, selectable by Source. With the
addition of an external preamplifier you can even turn the D1’s
Record Path into a fourth independent audio/video zone.
4
8
Built-In FM/AM Tuner
The D1’s FM/AM tuner provides superb high-end sound.18 FM and
6 AM station presets with selectable Stereo, High-Blend and Mono
modes capture even hard-to-reach stations. As with other sources,
the tuner can be directed to all four Paths so that you can record or
listen to your favorite radio station anywhere in your home. A Texas
Instruments™ TLC072 MOSFET input-type operational amplifier is
used to reduce DC offsets for even greater signal precision.
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