The A5 and the A7, our critically acclaimed models, have won
a string of awards and received four dozen glowing reviews in
the worlds top magazines (see www.adam-audio.com). They
were equipped with the ADAM proprietary Accelerating Ribbon
Technology and quickly became the benchmark for nearfield
monitoring at a relatively low price point, while the high end
S-Series could be found in major studios around the world.
ADAM introduced a new top line of studio monitors, the SX-Series,
at the Prolight & Sound (Frankfurt, Germany) and at the AES (New
York, USA) in 2009. Now ADAM Audio proudly presents a similar
evolution to the A series, the AX series. The new A5X and A7X are
joined by two new models, the A3X and A8X. All models of the new
AX-Series now profit from the technological improvements found in
ADAM’s top line monitors.
The New Models: AX-Series
The changes made to the A5X and the A7X are not simply
developments but a fundamental revision of the A-Series. ADAM
Audio took all aspects of the original A-Series and overhauled and
improved them.
One of the main improvements of the top line monitors SX-Series,
the X-ART tweeter, now replaces the ART tweeter in the new AX
versions. The X-ART tweeter features an even higher efficiency and
maximum sound pressure level as well as a frequency response up
to 50kHz. All woofers and amplifiers have also been re-engineered
from scratch, featuring larger voice-coils and amps with twice the
power for higher linear excursions and more output. Last but not
least, the cabinets have been redesigned, all models now sport two
bass reflex ports.
Finally, two completely new models complement the AX-Series.
The A3X is now ADAMs smallest monitor ever, and the larger A8X
opens the door to midfield monitoring and is the top of the AX line.
Page 6
Nearfield Monitor A3X
The smallest big sound ever...
With the A3X, ADAM Audio present their smallest monitor to date,
making it perfectly suited for all environments where space is
limited but sound shouldn’t be constricted. The A3X combines a tiny
footprint with the much acclaimed ADAM sound quality by using the
X-ART tweeter for the higher frequencies, a guarantee for crystal
clear music reproduction.
A 4.5” (basket) driver handles the lower registers. The diaphragm is
made from carbon fiber, a material that is very light but very stiff and
therefore capable of delivering colouring-free sound. Two built-in 25
Watt amplifiers powers each of the drivers directly.
Controls and Connectors
The front of the A3X sports dual ports for surprisingly low frequency
response down to 60Hz. The front panel also has power and gain
controls. The rear panel includes a tweeter gain control as well
as balanced (XLR) jacks and unbalanced (RCA) jacks, allowing for
greater connection flexibility.
Stereolink
A very handy and exclusive technology found in the two smaller
AX monitors is the Stereolink. This is accomplished by a pair of
additional RCA connections that allow for a bypass of the second
stereo channel to the other speaker.
This new technology connects two A3X speakers in such a manner
as to allow the user the option to control the overall stereo volume
of the system from either speaker’s gain control. This makes the A3X
a natural for “mixer-less” desktop applications where overall system
volume needs to be adjusted easily.
Basic technical data at a glance
• X-ART tweeter
• 4.5” carbon fiber midwoofer
• 2 x 25W amplification
• on-/off-switch and volume gain on the front panel
• Stereolink
• tweeter gain on the rear panel
• 60Hz - 50kHz
• XLR & RCA connectors
• 106dB max peak SPL per pair
• 5 year warranty
A3X
6
Page 7
Nearfield Monitor A5X
The original A5
The small A5 managed to make itself a big name in both professional
environments as well as in computer or desktop applications. A
wealth of truly outstanding reviews and many awards helped to
establish this speaker as one “of the best small monitors” and a
“great choice for the small studio.” (Future Music, 01/2009).
The new A5X
The similar dimensions and name could make one believe that the
A5X is nothing more than a new version of the A5. A quick listening
however leaves no doubt that the A5X is much more than that.
Like all other models of the AX-Series it features the proprietary
X-ART tweeter. The very data (see page 36 f.) of this technology
shows that it is at the forefront of what tweeters can accomplish.
Numerous listening tests have confirmed this.
A 5.5” Midwoofer reproduces the frequencies below 2.5kHz. The
diaphragm is made from Carbon fiber/Rohacell/Glass fiber, which is
the same composite structure shared in the next two bigger models.
This material with minimum weight and maximum rigidity prevents
break up resonances, resulting in an outstanding dynamic behaviour
and impeccable sound characteristics.
Stereolink
A very handy and exclusive feature found in the two smaller AX
monitors is the Stereolink. This is accomplished by a pair of
additional RCA connections that allow for a bypass of the second
stereo channel to the other speaker.
This new technology connects two A5X speakers in such a manner
as to allow the user the option to control the overall stereo volume
of the system from either speakers gain control. This makes the A5X
a natural for “mixer-less” desktop applications where overall system
volume needs to be adjusted easily.
Basic technical data at a glance
• X-ART tweeter
• 5.5” carbon/rohacell/glass fiber-midwoofer
• 2 x 50W amplification
• on-/off-switch and volume gain on the front panel
• Stereolink
• tweeter gain and 2 shelf filters on the rear panel
• 50Hz - 50kHz
• XLR & RCA connectors
• 110dB max peak SPL per pair
• 5 year warranty
A5X
7
Page 8
Nearfield Monitor A7X
ADAMs A7 & A7X: the evolution of a legend
The predecessor to the A7X, the A7, became the most famous of all
ADAM monitors in a very short time. Not only has it been reviewed
over three dozen times with outstanding results, it has also received
numerous awards. The A7 quickly gained mass appeal, praised in
many of the world’s largest internet forums. Still today, the A7 are
the reference monitors in many smaller studios.
With the A7X, ADAM Audio proudly presents the evolution of a
legend. It takes everything that made the A7 such an outstanding
speaker to a new level.
Driver technology
The first aspect that distiguishes the old from the new model is the
X-ART tweeter. The ‘X’ stands for ‘eXtended frequency response’ and
thus for one of the features of the Accelerating Ribbon Technology
that has been drastically improved: the frequency response. It now
extends all the way up to 50kHz. In addition, the X-ART tweeter has a
higher efficiency and higher maximum sound pressure levels.
The perfect integration with the lower frequencies has been achieved
with a newly designed 7” midwoofer. It has been redesigned with a
much bigger voice coil (1.5”) and is driven by an amplifier with twice
the power compared to its predecessor. This combination produces
an amazing sound and pressure levels with an almost distortion-free
musical reproduction.
Amplifiers / controls
Each driver has its own dedicated amplifier. A 50W A/B amp is
responsible for the X-ART tweeter, while the midwoofer is being
driven by a 100W PWM (see p. 38) amp. The front panel includes a
power switch and a control for the volume that retains the volume
setting independently from the on/off switch.
On the rear panel are several additional controls: a gain for the high
frequencies (± 4dB) and two shelf filters for high and low frequencies.
To ensure greater compatibility, there are both XLR (balanced) and
RCA (unbalanced) connectors.
Basic technical data at a glance
• X-ART tweeter
• 7” carbon/rohacell/glass fiber-midwoofer
• 50W/100W amplification
• on-/off-switch and volume gain on the front panel
• tweeter gain and 2 shelf filters on the rear panel
• 42Hz - 50kHz
• XLR & RCA connectors
• 114 dB max peak SPL per pair
• 5 years warranty
A7X
8
Page 9
Near-/Midfield Monitor A8X
The most powerful AX monitor
With its power and radiation characteristics, the brand new A8X is
suitable for both nearfield and midfield monitoring. With a price/
performance ratio that could hardly be better, this monitor is a
perfect entry into these monitoring fields.
The A8X is equipped with the X-ART tweeter and a large (8.5”)
midwoofer, a combination that adds both a very deep and yet very
tight bass response to the unsurpassed reproduction qualities of the
ADAM proprietary tweeter: a licence to thrill.
Cabinet- and bass reflex-construction
Like the other AX-Series models, the upper corners of the A8X are
slanted to minimize reflections. The very large, double bass reflex
tubes on the front have been specifically designed to perfectly match
the midwoofer with its large voice coil.
Amplification and controls
With a 50W amplifier for the tweeter and a 150W amplifier for the
midwoofer, the A8X has power in abundance and is the brawny
monitor of the AX-Series.
On the rear panel are several controls: a gain for the high frequencies
(± 4dB) and two shelf filters for the high and low frequencies.
There are both XLR (balanced) and RCA (unbalanced) connectors
on the rear panel of the speaker, which allow the A8X to be used in
almost any application.
Basic technical data at a glance
• X-ART tweeter
• 8.5” carbon/rohacell/glass fiber-midwoofer
• 50W/150W amplification
• on-/off-switch and volume gain on the front panel
• tweeter gain and 2 shelf filters on the rear panel
• 38Hz - 50kHz
• XLR & RCA connectors
• 120dB max peak SPL per pair
• 5 years warranty
A8X
9
Page 10
Page 11
Near-/Midfield Monitors
SX-Series
The Making of a Leader: S-Series
ADAM Audio‘s famous S-Series models are reference monitors in
many of the most prestigious sound studios around the globe. In
only a few years they have become some of the most sought after
professional tools at recording facilities. The S-Series combines all
of ADAM‘s innovative speaker technologies with the best materials
available today.
The New Models: SX-Series
The new SX-Series is based on the S-Series. However, it is
not a simple revision of existing models but a fundamental
transformation. No details have been overlooked and every sound-
crucial aspect has been evaluated. All transducers, drivers and
electronics have been redesigned. The result is much more than
an improvement, it is a quantum leap in professional monitoring.
All models of the SX-Series are equipped with the new X-ART
tweeter (see p. 36 f.). Its fundamental principle is the very same
as ART, one of ADAM’s core technologies that has already been
written in the annals of audio technology. The X-ART tweeter has a
4dB higher efficiency, a 3dB higher maximum sound pressure level,
and an increase in frequency response up to 50 kHz.
The new HexaCone woofers (see p. 38) are designed with larger
and longer voice coils that deliver a more linear excursion for
higher SPL max. values. A stronger magnetic structure is added as
well for greater efficiency and accuracy.
All SX-models, starting with the S2X all the way up to the S5X, can
be retrofitted with an optional 24 bit/192 kHz D/A Converter (see
p. 39) featuring an AES/EBU (XLR) and a SPDIF (RCA) input as
well as a R/L/Mono switch. Furthermore these models feature an
innovative front panel with sophisticated controls. These controls
allow the user to adapt the speakers to the soundroom with high
precision (see p. 39).
All models can optionally be magnetically shielded.
”You could be forgiven for thinking that there isn’t too much left
to achieve with monitoring technology. The ADAM SX generation
disproves this by bringing a new benchmark to the market.”
(Audio Media, 12/2009)
Page 12
Nearfield Monitor S1X
The smallest reference speaker
The S1X nearfield monitor delivers high quality sound in a very small
cabinet. Due to the tiny dimensions the application possibilities of
the S1X are almost unlimited.
The S1X incorporates all the critical attributes of the new SX-Series:
the X-ART tweeter in combination with the ADAM designed class A/B
amplifier and the HexaCone-woofer with optimized magnet/voicecoil systems, driven by premium PWM amplifiers. The combined
features of crystal clear resolution, tight and precise low-frequency
reproduction and effortless musical reproduction sets this speaker
apart from all conventional designs.
The S1X is the best choice for all environments that require high
quality within a small space, whether it is a smaller studio, an OB
vehicle, or a 5.1 installation.
The new art of tweeter technology: X-ART
With the SX-Series, ADAM brings the new, improved version of the
world famous Accelerating Ribbon Technology (see p. 36 f.) to the
market. Compared to their predecessors, the X-ART drivers show
an even better frequency response, higher efficiency and higher
maximum sound pressure levels.
Amplifiers: power and control
The tweeter is driven by a 50W A/B amplifier, which has been
developed by ADAM Audio especially for the X-ART tweeter (see p.
36 f.).
A top-class PWM amplifier takes care of the midwoofer. With its
200W, it has power in abundance and is capable of astonishing
soundstages due to its cone design, optimized voice coils and new
magnetic material.
Basic technical data at a glance
• X-ART tweeter
• 6” HexaCone midwoofer
• 50W/200W amplification
• tweeter & input gains on the rear panel
• 2 shelf filters on the rear panel
• 40Hz - 50kHz
• 113dB max peak SPL per pair
• 5 years warranty
S1X
12
Page 13
Nearfield Monitor S2X
S2X
The S2X brings together the virtues of the X-ART tweeter with the
”classical” 7.5” woofer by using ADAM innovative technologies and
top-class materials.
The 7.5” HexaCone woofer is driven by a sophisticated magnet
system with a 2” voice coil creating a greater linear excursion. This
produces more dynamics than one would assume in a monitor of
such small proportions. As a result, in addition to the unsurpassed
audio quality of the X-ART and A/B amplifier combination, this
monitor surprises the listener with a very powerful, deep, but always
tight and precise low end.
Basic technical data at a glance
• X-ART tweeter
• 7.5” HexaCone midwoofer
• 50W/250W amplification
• sophisticated control panel on the front
• 35Hz - 50kHz
• 120dB max peak SPL per pair
• 5 years warranty
Highly sophisticated control panel
The S2X is the first monitor of the SX-Series that features the new,
very refined control panel (see p. 39) that captivates the user with its
variety of controls and their precision.
Reviews at a glance: “Sonic Sensation”
“The ADAM Audio S2X can convince in all areas, concerning the
sound as well as the workmanship, and are worth every Euro. […] a
no-compromise tool for all who mean serious business, whether in
music or postproductions.” (www.96kHz.de, 03/2010)
“We started off with a classical string quartet recording and let´s
just say right away that the S2Xs floored us. Several adjectives
spring to mind [...] - wide open, transparent, effortless, breathtaking
realistic, loud, dynamic, involving... [...] If you close your eyes and
continue listening, the S2Xs seem to ‚disappear‘ almost entirely. [...]
you gradually become less aware that you´re listening to speakers
because they´re like an open window on the music itself. [...] Result:
These monitors are up there with the best we´ve tried so far.”
(MusicTech, 01/2010)
S2X
13
Page 14
Midfield Monitor S3X-H
S3X-H. Yes, even better...
The S3A is one of ADAM’s most famous models and is found in many
of the world’s most prestigious recording studios. The successor to
this world famous model is the S3X-H, a monitor second to none at
its price point.
Unlike the S3A, the new X-model incorporates a 4.5” HexaConemidrange to further improve this musically most important frequency
range. This new design provides more detail with improved radiation
characteristics while presenting a musically coherent sound.
To produce deep, tight bass both woofers now work within the same
frequency range and radiate symmetrically. This allows for a problem
free installation in any multi-channel application.
Basic technical data at a glance
• X-ART tweeter
• 4.5” HexaCone midrange
• 2 x 7.5” HexaCone woofers
• 50W/3 x 250W amplification
• sophisticated control panel on the front
• 32Hz - 50kHz
• 126dB max peak SPL per pair
• 5 years warranty
Reviews: “...the monitor reference...”
Due to the outstanding reputation of its predecessor, it was to be
expected that the S3X-H would be reviewed with the most critical of
all ears. Here are some samples (complete reviews can be found on www.adam-audio.com):
“The S3X-H convinces all along the line. ADAMs new member is all but
just an improvement of a successful monitor. With a new loudspeaker
design and painstaking tuning it is a first-class control tool in any
studio. From now on, the monitor reference in the Professional audio-
studio is called S3X-H.” (Professional audio, 09/2009)
“[...] anyone seeking an uncompromised solution to studio monitoring
should add these to your short list of products to consider.” (MIX,
12/2009)
“The S3A is an amazing unit with some excellent technologies,
and ADAM hasn’t just built on this to give us the S3X, but has built
something new and exciting with what it knows so well. The sound
has been opened up in a whole new way that I believe consistently
delivers more reliable results outside of your studio. These are
reference monitors, and as they make their way into studios they
will become part of the standard called ‘music production’. The S3X
radiates sound into the room with depth, accuracy, and clarity in the
way you need it to be with comfort and ease. These are monitors that
need to be heard.” (Audio Media, 09/2009)
S3X-H
14
Page 15
Midfield Monitor S3X-V
Midfield monitoring on a new level
The midfield monitors of the SX-Series begin with two versions. The
S3X-V (‘V’ for vertical) is a 3-way construction with specific virtues
concerning sound and radiation characteristics.
Using the newly developed 4.5” HexaCone midrange and 9”
HexaCone woofer combined with the X-ART tweeter creates the
unique S3X-V control monitor.
Listening without fatigue
A step up over the smaller models, the S3X-V is equipped with more
power and capable of producing higher volume along with a more
detailed and homogeneous sound that will impress even the most
experienced sound engineer. Whether the complex sonic images of
an orchestra or the smooth tone of a jazz trio, the S3X-V reveals even
the finest nuances of any material. The driver assembly of the S3X-V
allows long time, non-fatiguing listening sessions.
Reviews: “Wonderfully detailed...”
“Wonderfully detailed, with an exceptionally transparent mid-range.
[...] ADAM make the leap to a three-way speaker design that seems
to pay dividends in clarity and separation. [...] I think it would be
fair to say they‘re the best sounding ADAM monitors I‘ve reviewed.”
(Sound On Sound, 12/2009)
“No doubt, the S3X-V deserve the title Reference Monitor. With this
series, ADAM Audio proves to have a very good feeling for meeting
the specific demands of the sound engineer‘s guild, creating studio
standards at the same time. [...] A precision tool combined with a
luxury good.” (www.96kHz.de, 03/2010)
Basic technical data at a glance
• X-ART tweeter
• 4.5” HexaCone midrange
• 9” HexaCone woofer
• 50W/2 x 250W amplification
• sophisticated control panel on the front
• 32Hz - 50kHz
• 124dB max peak SPL per pair
• 5 years warranty
S3X-V
15
Page 16
Midfield Monitor S4X-H
The S4X-H: excessive power, highest accuracy
The S4X monitors are not just improved versions of the S4A, but
the result of a long term evolutionary development. Like their
predecessors, they have been designed for medium size control
rooms. Designed with enormous power, the S4X are also capable of
working in larger environments.
The S4X-H midfield monitor combines the X-ART tweeter with a 6”
HexaCone midrange and two redeveloped 9” HexaCone woofers. A
stunning driver assembly for stunning results.
The X-ART tweeter (see p. 36 f.) sets a new benchmark in tweeter
technology. For this, ADAM Audio has specifically designed a new
A/B power amplifier that in combination with the X-ART tweeter
guarantees an ultra fine resolution and perfect transparency.
New HexaCone midranges and woofers handle both the mid and low
frequencies. With their larger voice coils and stronger magnets they
have longer linear excursion for higher SPLs without sacrificing detail
and musicality.
Because both S4X models have identical tweeters and midrange
drivers handling frequencies above 350 Hz, any combination of
either model will integrate perfectly in a 5.1 or 7.1 installation.
The frontpanel
ADAM has developed an innovative front panel with sophisticated
controls. These controls allow the user to adapt the speakers to the
soundroom with high precision.
Apart from the standby-button, there are two controls for the
input sensitivity, two for the bass section and two more for the high
frequencies.
Basic technical data at a glance
• X-ART tweeter
• 6” HexaCone midrange
• 2 x 9” HexaCone woofers
• 50W/3 x 250 W amplification
• sophisticated control panel on the front
• 28Hz - 50kHz
• 128dB max peak SPL per pair
• 5 years warranty
S4X-H
16
Page 17
Midfield Monitor S4X-V
The S4X-V
The two versions of the S4X are intended for use in medium and
larger control rooms. They are an ideal choice for film, television and
broadcast recording studios where the highest quality standards
must be observed.
The S4X-V has been designed for vertical installation. This reference
monitor features the same X-ART and 6” HexaCone midrange as
the S4X-H allowing for almost identical tonal characteristics of both
speakers. This allows combinations of the different versions in bigger
multi-channel applications without tonal imbalance.
Basic technical data at a glance
• X-ART tweeter
• 6” HexaCone midrange
• 12” HexaCone woofers
• 50W/2 x 250W amplification
• sophisticated control panel on the front
• 28Hz - 50kHz
• 126dB max peak SPL per pair
• 5 years warranty
Drivers & amplifiers
To allow the X-ART tweeter to extend to its highest frequencies, it
is combined with a unique ADAM Audio A/B amplifier. This unique
amplifier (see p. 37) has ultra low distortion and an immense internal
bandwidth of more than 1MHz. Combine this amplifier with the
X-ART tweeter and you get a fascinating sound that is effortless and
of the highest resolution.
Furthermore, the S4X-V features a newly developed 12” HexaCone
woofer. This driver, with electronic correction, has been designed for
optimal results in a bass-reflex cabinet. An exceptionally long 3” voice
coil coupled with a very strong and highly effective magnet system
provides for powerful, yet never overemphasized bass reproduction.
Improperly designed larger monitors are always at risk of
compromising the overall sound with bass reproduction that is too
intense. As in all ADAM Audio designed speakers, both versions of
the S4X have been designed to combine both the power and volume
of the bass (28Hz at -3dB point) with the highest possible precision.
Combine this with the transparent high and midrange frequencies of
the S4X and this will give an engineer a new quality level of control
and performance for larger rooms.
S4X-V
17
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Page 19
Main Monitors
S5X-H & S5X-V
Experience main monitors a cut above the rest
These Main Monitors have been designed for larger control rooms,
can be soffit mounted and provide excellent freestanding operation
as well. They transport the fundamental advantages of the X-ART
technology (see p. 36 f) and the HexaCone woofers (see p. 38 f.) to
much higher SPL regions and higher respectively lower frequency
responses. As the diaphragm areas involved are considerably
enlarged, an impressive combination of natural sound and high
dynamics is achieved.
The X-ART of midrange drivers & precise bass
drivers
All ADAM main monitors employ the X-ART midrange drivers to
achieve the best possible sound quality within this crucial area.
Aiming at total authenticity in the reproduction of music, these
monitors avoid the common flaw in big loudspeakers which is to
impress the listener with a thunderous bass – a principle more
in line with a PA loudspeaker. Instead, ADAM main monitors are
designed to provide a big speaker that can actually be used for
critical listening, combining precision and magnitude to enable
sound engineers in larger control rooms to monitor even the most
complex sound material with complete accuracy. Accordingly,
ADAM main monitors feature highly sophisticated control panels
(see p. 39) to ensure that they can be perfectly adapted to all kinds
of room acoustics: precision through control, control through
precision.
Set up and combination
The different versions of the S5X have been designed to meet
different needs for setup and mounting in bigger studios. The very
similar overall sound characteristics of both monitors allow for a
perfect combination and integration of both S5X versions in a 5.1
or 7.1 installation.
Page 20
Main Monitor S5X-H
S5X: Main Monitors a notch above
Both Versions of the S5X models have been designed for medium
and large sized control rooms in which the precision and the power of
the sound production are essential. The main task of these monitors
is to bring the extraordinary sound quality all ADAM monitors are
famous for into areas of higher dynamics and higher sound pressure
levels.
Drivers
The S5X-H features two 12” HexaCone woofers, a 7.5” HexaCone
midwoofer unit, an X-ART midrange and an X-ART tweeter. This
combination is capable of filling large control rooms with breathtaking
realism and stunning dynamic performance.
Amplifiers
The upper three drivers are each powered by a 250 W discrete PWM
(see p. 38) amplifier while two 500 W digital amp drive the two 12”
woofers.
The X-ART midrange
The most famous and highly acclaimed feature of all ADAM monitors
is the proprietary Accelerating Ribbon Technology tweeters. An
exclusive feature of the main monitors is the application of this
technology to the midrange as well.
In accordance to the X-ART tweeters, also the midrange units now
feature the improved X-ART. Compared to their ART predecessors,
these midranges show improvements namely in higher efficiencies
and higher maximum sound pressure levels.
Basic technical data at a glance
• X-ART tweeter
• X-ART midrange
• 7.5” HexaCone midwoofer
• 2 x 12” HexaCone woofers
• 3 x 250W/2 x 500W amplification
• sophisticated control panel on the front
• 24Hz - 50kHz
• 131dB max peak SPL per pair
• 5 years warranty
S5X-H
20
Page 21
Main Monitor S5X-V
The S5X-V
The S5X-V is a four-way vertically oriented studio monitor
incorporating ADAM’s proprietary X-ART folded ribbon tweeter and
midrange unit, which provide amazingly life-like, detailed imaging.
It houses a 12” HexaCone subwoofer drive unit that has a large 3”
voice coil and a very strong magnet system. The combination of
this big motor with the outstanding stiffness of the cone enable the
reproduction of signals down to 25Hz while remaining stable and
tight. The 7.5” midwoofer uses the same honey-comb core coated
with Kevlar on both sides, allowing for an extremely precise and
uncolored response.
The upper three drivers are each powered by a 250W discrete
PWM (see p. 38) amplifier, and a 500W digital amp powers the 12”
subwoofer.
The S5X-V is designed to be used as either a midfield or main monitor
in the most demanding professional recording, mixing, and surround
studio applications.
Highly sophisticated control panel
Both versions of the S5X incorporate the new, very refined control
panel (see p. 39) that captivates the user with the variety and
precision of its controls.
Apart from the standby-button, there are two controls for the
input sensitivity, two for the bass section and two more for the high
frequencies.
Basic technical data at a glance
• X-ART tweeter
• X-ART midrange
• 7.5” HexaCone midwoofer
• 12” HexaCone woofers
• 3 x 250W/1 x 500W amplification
• sophisticated control panel on the front
• 25Hz - 50kHz
• 128dB max peak SPL per pair
• 5 years warranty
S5X-V
21
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Page 23
Main Monitors
S6X& S7A Mk2
The main monitors S6X and S7A Mk2 are designed for large control
rooms and film studios. They present a completely new, impressive
concept: to transport the unique realism of the ADAM monitors
at a very high SPL level. In accordance with ADAM’s main goal
to achieve the best possible authenticity in music reproduction,
any overemphasis of the bass frequencies should be avoided.
Furthermore, it is essential for neutral sound characteristics at
high volumes to achieve a wide dispersion in the horizontal plane
and a somewhat narrower dispersion in the vertical plane, thus
reducing reflections from the ceiling, the floor or a mixing console.
Less reflection means superior imaging and better localization,
facilitating the best possible transportability of mixes across the
widest range of playback systems.
Advanced D‘Appolito-array
The arrangement of the seven discrete drivers facilitates a gradual
transition of the chassis dimensions. One of the most important
aspects of these monitor’s new approach is the vertical symmetry
of the drivers, which could be referred to as advanced D´Appolito
array. If the drivers are filtered properly there are – besides the
dispersion characteristics mentioned previously – two more
advantageous results:
frequency, leading to harmonic dispersion behavior throughout
the audio band. The absence of sudden changes in directivity
is not visible in a frequency plot, but clearly audible - especially
with a full range of materials, from single complex sources such
as the human voice to the wide sonic palette of large orchestras.
the audio band more equally, and louder recording or mixdown
sessions with SPL´s of 120dB are handled without offending the
ear.
Impulse Coupling
In order to get a precise and undistorted reproduction, all drive
units are mounted on an ultra stiff Aluminum honeycomb plate (see
next page).
Amplifiers
Both the S6X and the S7A Mk2 ADAM use the new generation of
switching amps and power supplies as described on page 38 of
this catalog.
These are combined in an extremely powerful (1000 and 1500W
rms respectively) yet cool amplifier assembly. Together with the
built in overload protection circuits these amplifiers will run reliably
and at constant safe operating temperatures not possible with
conventional designs.
The amplifiers are of extremely low output impedance, leading to a
damping factor >4.000, enabling them to strictly control the motion
of the drive units.
Page 24
Main Monitore S-Serie
Main Monitor S6X
The S6X: accuracy and power
The S6X is one of the most ambitious studio monitors available
today. They can be found in some of the highest profile studios in
the industry, from elite private studios to world class jazz, from rock
and orchestral tracking and mixing facilities to high powered hip hop
production rooms. The concept of the horizontal symmetry of the
drivers is greatly affected by the generous proportions of the larger
diaphragms, resulting in both exceptionally flat frequency response
and extremely realistic dynamic reproduction across the entire
audio spectrum. Numerous controls at the front panel allow detailed
adaptations to different acoustic environments (see control panel,
next page).
This main monitor offers very high accuracy and power in sheer
abundance. SPL peaks beyond 120 dB are produced without any
compression or harshness. The S6X is a top shelf choice for larger
control rooms and film or sound studios.
Basic technical data at a glance
• X-ART tweeter
• 2 x X-ART midrange
• 2 x 7.5” HexaCone midwoofer
• 2 x 12” HexaCone woofers
• 4 x 250W/2 x 500W amplification
• sophisticated control panel on the front
• 23Hz - 50kHz
• 133dB max peak SPL per pair
• 5 years warranty
IC: Impulse Coupling (S6X & S7A Mk2)
To improve the time behavior of speakers, ADAM introduces IC =
Impulse Coupling, a method to vastly improve the connection
between drivers and wooden cabinet.
There is a well-known action = reaction principle of Sir Isaac Newton,
which (as relates to speaker mounting) dictates that the forces
created by the movement of the diaphragm/voice coil assemblies
are transferred to the cabinet. As wood is not very stiff, these forces
cause local instability around the driver, i.e. a phenomenon that
keep the drivers basket in motion relative to the diaphragm, thus
deteriorating the transmitted sound quality. Imagine if you were to
jump in the water... starting from a sand bank gives you a much less
stable jump-off point than starting from a solid rock.
Impulse Coupling is the rock solid connection that improves the
situation of the driver in a comparable way. In both the S6X and
the S7A Mk2, all drivers are mounted on an ultra stiff 25 mm thick
aluminum honeycomb plate, which is acoustically dead - thereby
providing an extremely mechanically stable bridge to the cabinet. As
the drivers excessive energy is now controlled, their time behavior
(and consequently their clarity) is audibly and measurably improved.
S6X
24
Page 25
S6A Mk2 · S7A Mk2
Main Monitor S7A Mk2
S7A Mk2: the benchmark
The S7A Mk2 is the ‘big brother’ of the S6A Mk2 and ADAM’s most
spectacular studio monitor to date. With a whopping combined 1500
W of onboard power (rms), this monitor reaches SPL peaks of 128
dB at a distance of 1 meter. The big bass diaphragms produce more
volume even at pitches as low as 20Hz.
Quite simply, we feel that the S7A Mk2 is the benchmark of what is
possible in state of the art full range active professional monitoring.
It incorporates all of the ADAM inventions and designs, as well
as the best materials available. This fusion of power and capacity
with precision and accuracy results in unparalleled performance in
professional monitoring.
The S7A Mk2 is ADAM’s contribution to the best possible studio
monitor available. The proof is in the listening – we encourage you
to hear for yourself.
Basic technical data at a glance
• X-ART tweeter
• 2 x X-ART midrange
• 2 x 9” HexaCone midwoofer
• 2 x 15” HexaCone woofers
• 3 x 250W/2 x 500W/1 x 1.000W amplification
• sophisticated control panel on the front
• 20Hz - 50kHz
• 138dB max peak SPL per pair
• 5 years warranty
Control panel (S6X & S7A Mk2)
Numerous controls on the front panel introduce a new degree of
control for main monitors. Along with the input gain, there are level
controls for each of the four drivers, shelving filters on both ends of
the frequency spectrum, and three full parametric EQs (20-200HZ)
that can be used to combat standing waves in the control room.
The EQ can be bypassed individually or as a group so that their
overall effect can be analyzed in direct comparison to the unaffected
signal.
In large film score mixing rooms, it may be desirable to have a
representation of the sound in the theatres. To meet the ISO 2969
Standard, the Dolby™ X-curve has to be applied.
Using pink noise, the X-curve engages a 3 dB per octave roll-off
above 2 kHz. Both the S6X and S7A Mk2 have a switch that activates
this filter, eliminating the need for external processing during the film
mix.
A second switchable input on the front allows servicing without
moving the unit.
All LED indicators can be dimmed if necessary.
S7A Mk2
25
Page 26
MP1
Page 27
Mastering Piece
The field of audio mastering has emerged with its own set of
standards and criteria. Numerous specialized hardware and
software tools are offered to the mastering engineer nowadays –
tools that can remove unwanted parts of the signal or that can
enhance, optimize or restore sonic elements of the recording
under consideration.
The ADAM MP1 ”Mastering Piece” provides the ultimate monitoring
tool for the final stage of the recording process. Since this is the
last chance anyone has to sculpt, change and fine tune a recording
before it becomes available to the public, it is crucial for a mastering
engineer to know for certain that their monitors provide them with
the most honest and revealing sonic ”picture” possible. It was to
answer this need that the MP1 was created.
The MP1 reveals what is actually present in an audio recording
with an unprecedented degree of sonic precision, offering every
discerning mastering engineer the chance to hear his/her work
more accurately and in greater detail than ever before.
In designing the MP1, we examined the leading edge of today’s
loudspeaker technology at every frequency band. We started with
a 12.5” side-firing HexaCone woofer, driven by a no-compromise
500W PWM amplifier. A very stable bass reflex cabinet, where the
woofer could be mechanically tuned to a 23Hz corner frequency
(-3dB point) is responsible for an extremely pure sound that is free
from overemphasizing artifacts, resulting in especially tight and
solid bass response. One can immediately appreciate the accuracy
of these monitors when listening to an acoustic bass.
The range between 80 and 800Hz is reproduced by ceramic
cones, which exhibit the best stability-to-weight ratio of all solid
diaphragms. Combined with our ART midrange and tweeter units,
these are the most advanced and precise drive units available.
Control panel
The control panel on the front allows the MP1 to adapt to different
room acoustics in order to optimize performance in any given
situation.
In addition to input sensitivity, there are controls to adjust the
individual levels of the tweeter and midrange amplifiers as well as
shelving filters on both ends of the frequency band, thus allowing
for maximum flexibility of positioning within the control room as
different room absorption may be equalized.
Page 28
Page 29
Subwoofer
Our subwoofers are dedicated to ADAM Audio’s primary goal: the
best possible authenticity in the reproduction of music. For our
subwoofers, this means combining power and precision while
simultaneously avoiding “impressive” bass volume at the cost
of accuracy. Their task is it to complement the highly acclaimed
lucidity and transparency of the ADAM monitors in the lower and
lowest frequencies.
All subwoofers up to the Sub2100 feature both balanced (XLR)
and unbalanced (RCA) in and output connectors, and numerous
controls to adapt to different room acoustics and requirements.
“I recommend it highly to anyone looking for a top-notch subwoofer.”
Tape Op on the Sub12 (Feb/March 2009)
Panel/Controls
All subwoofers up to the Sub2100 feature a number of controls to
adapt to different room acoustics and requirements.
All units have a level control that varies from -60dB to +6dB, a
phase ±180° switch and variable upper frequency barrier control
(50-150Hz), a switchable 85Hz high pass filter for the satellite
output. In addition, there is a ‘signal-on/continuous’ switch. This
provides the option of automatic power up whenever the subwoofer
receives a signal and automatic power off after 15 minutes of no
signal.
Page 30
Subwoofer
Sub7
The Sub7 has been designed to complement smaller monitors like
the AX-Series. Its small footprint allows for an easy placement even in
small environments.
The front panel features two motorized potentiometers that let you
adapt the input level and crossover frequency settings for the best
performance. These pots can also be controlled with an included
wireless remote control, allowing you to optimize your sound
reproduction from your ideal listening position.
The Sub7 is equipped with both balanced (XLR) and unbalanced
(RCA or Cinch) in and output connectors and numerous controls. A
0°/180° phase switch and a switchable 85Hz highpass filter allows
you to find the best settings for an ideal sound and performance.
The low cut off frequency of 32Hz (-3dB point) enables this subwoofer
to reproduce register of even this range in a highly authentic manner.
Sub8
The Sub8 is a small yet deceptively powerful subwoofer designed
to extend the low frequency capabilities of any nearfield monitoring
system. The Sub8 houses a robust 8.5” woofer with an 1.5” voice
coil, and is driven by a 160W ICE Power amp. This amp stays cool
while handling maximum power levels, even if they are sustained.
The front baffle features two motorized knobs that let you tailor input
level and crossover frequency settings for the best performance in
your studio. These knobs can be controlled with an included wireless
remote, allowing you to optimize your sound reproduction from your
ideal listening position.
The Sub8 is an ideal match for ADAM monitors such as the AXSeries, S1X, and S2X.
Sub10 Mk2 / Sub12
The Sub10 Mk2 and the Sub12 are powerful subwoofers designed
to extend the low frequency capabilities of any near or midfield
monitoring and are ideal matches for ADAM monitors such as the
AX- or the SX-Series.
A large (2”) voice coil is driven by a 200W Ice Power amp. This
amp stays cool as it uses PWM (pulse width modulation, see p. 38)
technology in the amp and the power supply sections, producing >
90% overall efficiency, and can handle its maximum power without
danger to the electronics or the driver. The Sub10 Mk2 houses an
10” woofer, capable of a frequency response of 25 Hz - 150Hz. The
larger Sub12 has a 12” woofer capable of producing a 3dB higher SPL
max output and reproduces frequencies down to 22Hz.
Both versions work with a new down-firing bass reflex tube that, due
to its shape and size, avoids unnecessary ventilation noise. For larger
rooms or higher levels it is possible to chain as many ADAM Subs
together as necessary. All inputs and outputs have both XLR and RCA
(cinch) connectors.
Subwoofer recommendations
The overview allows finding the right subwoofer for different room
sizes. It should be noted that these are recommendations only.
Depending on your SPL demand or the kind of music you prefer you
may go up or down the ladder of course.
room volume [m3]typical area [m2]subwoofer
up to 40up to 18Sub7
40 - 50up to 20Sub8
50 - 70up to 25Sub10
70 - 90up to 30Sub12
90 - 140up to 47Sub20
140 - 180up to 60Sub24
> 180> 60Sub2100
30
Sub8Sub10Sub12Sub7
Page 31
Sub20 / Sub24
Sub2100 - The ultimate subwoofer
The Sub20 and Sub24 are very powerful subwoofers designed for
medium sized or larger control rooms in which powerful and yet
accurate extra deep bass monitoring is required.
The Sub20 is equipped with two long throw 10” drivers which are
meant to reproduce LFE or other low frequency signals down to
25Hz. The Sub24, housing two long throw 12” drivers, extends down
to 22Hz.
The power of two subwoofers
The Sub20 and Sub24 each have two drivers, which are mounted in
chambers at opposite sides of the cabinet. Due to this alignment, the
forces applied to the cabinet oppose each other and consequently
compensate themselves, so that the cabinet stays much quieter
than with conventional arrays. Distortion is drastically reduced in
this manner, resulting in improved signal clarity, especially at higher
levels.
There are two down firing bass reflex tubes that, because of their size
and construction, successfully avoid ventilation noise.
PWM amplifers
The amplifier section has two units, each capable of delivering 200W
continuous or 300W peak power to their corresponding drive units.
Both power supply and amplifier section use PWM technology (Pulse
Width Modulation, see p. 38), meaning very high efficiency (≥90%)
and cool operation in even the most critical phases of operation.
For the special requirements of large control rooms and studios,
ADAM has developed a unique subwoofer. The Sub2100 combines
an enormous 21.5” woofer and an amplifier capable of 1000W
continuous power housed in a bass-reflex enclosure tuned for
reproducing frequencies down to 18Hz. The massive power and the
extremely high efficiency (99dB/W/m) enable this system to produce
linear SPL peaks of ≥128dB without any significant compression.
The biggest voice coil in the world
Essential to the volume of this woofer is the gigantic voice coil, with its
6” (the largest worldwide). So, the Sub2100 reaches high SPL in the
lowest frequencies perceivable by the human ear. This means nothing
less but a new subwoofer benchmark.
Challenged by nature’s thunder only…
An additional output allows daisy-chaining as many Sub20s /
Sub24s as desired.
Sub20Sub24Sub2100
31
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Page 33
ADAM Audio:
The ART of
Technology
In the beginning, the monitors from ADAM Audio were only known
from an insiders’ tip amongst experts. Ten years later, ADAM
speakers have developed a worldwide, impeccable reputation as
the preeminent tool for all sound engineers.
One of the main reasons for the great success of the ADAM
products is the technical progress in several areas of speaker
design. ADAM introduced many innovations which were not
“just cosmetics”, but true engineering progress that went to the
essences of what speaker design is all about: its sound.
The most famous and most fundamental of these innovations
undoubtly is the ADAM proprietary Accelerating Ribbon Technology:
Every ADAM speaker uses ART drivers and every one of these
drivers is being manufactured and measured in house. With the
improvements of this technology in the new X-ART tweeters and
midranges ADAM reinforces its claim to offer the best transducer
technology available today.
“And by using the ART technology for the middle and high
frequency reproduction, the speaker manufacturer from Berlin
has set himself worldwide at the forefront of what is possible in
reproduction quality.”
(Hardbeat, Germany, 06/2007)
Engineering progress is not limited to the ART technology but
extends to other areas of loudspeaker design such as diaphragm
materials, new development and application of high-class
amplifiers, the coupling of drivers and cabinets, control panels,
and more.
In the following pages we provide you with some descriptions of
the fundamental approaches of ADAM Audio as well as detailed
explanations of some of the technologies mentioned above. For
more information on all ADAM products and technologies, please
visit: www.adam-audio.com.
Page 34
Welcome to the World of ADAM Audio
Superior through innovation
ADAM Studio Monitors are one of the finest audio reference monitors
available today. The goal of every ADAM loudspeaker is to deliver the very best sonic performance possible. The cornerstones of
ADAM technology are ground-breaking innovation in electro-acoustic
transducers, painstaking design and superior materials. This allows
ADAM monitors to reproduce sonic images in breathtaking realism
rarely heard before.
ADAM Audio provides a complete range of active systems to suit
any environment and to precisely reproduce all kinds of acoustic
events. This precision allows one to hear previously hidden detail
in even the most familiar recordings. To an engineer, this new level of
perception results in a mix with true imaging and depth that is fully
transportable across the complete range of listener music systems.
Precision work ‚Made in Germany‘
Advanced Dynamic Audio Monitors (ADAM) are developed and
manufactured in Berlin, Germany all under one roof. In 2008,
ADAM moved into a new, much larger facility, where every single
loudspeaker is designed, assembled, tested, packed, and shipped.
This means that from conception to delivery, every product is
subjected to the same high quality controls.
Only these high principles can guarantee we can meet the claim of
ADAM speaker systems to be the best tools in professional monitoring
today. For many years, the very name ADAM has been a synonym
for the highest possible quality in acoustical reproduction and
craftsmanship. The ability to place all working processes under one
roof with continuous quality management ensures that this will stay
that way.
Production and measurement
Accuracy is indispensable in ADAM‘s high quality standards for all
production and measurement processes. As part of that, every
ART and X-ART tweeter and midrange is being intricately crafted
and tested by hand at ADAM’s facility. The final tests include
all important electro-acoustic parameters: impedance, absolute
frequency response, sensitivity level, relative frequency response
to reference standard, phase characteristics, impulse response,
absolute phase, and harmonic distortion factor.
Most of the electronics of the active monitors are made by ADAM,
too. The plug-in amplifiers are based on the so called ICE modules,
i.e. PWM based power amplifiers and mains supply circuits.
With 90% efficiency, high power levels are possible without the
otherwise compulsary heat issues. The ICE modules as well as the
ADAM designed A/B amplifiers (for the X-ART tweeters) are being
assembled by the in-house electronic department. The best up
to date instruments (Rohde & Schwarz UPV) are used to precisely
analyze the response chracteristics and to guarantee continuously
high quality standards.
Extended warranty period
ADAM products are famous not only for their impeccable sound
quality but also for their durability.
All active monitors from ADAM Audio carry a five-year warranty,
which is well above the industry standard. This is a clear sign
that ADAM is committed to the highest level of customer satisfaction
and a proof for the reliability of their products.
34
Dr. Oskar Heil and ADAM chief engineer Klaus Heinz in a relatively early discussion
about the project 1982
...every ART tweeter is being crafted by hand, and...
Page 35
Advanced DynamicAudioMonitors
Loudspeaker technology - an overview
The dynamic transducers used in more than 99% of all loudspeakers
today generate sound waves by using a voice coil which is mechanically
connected to a stiff cone or dome. The preferred dome materials are
fabric, polyamide, or aluminum. The unavoidable shortcomings of
this design are the relatively high mass of the membrane/voice coil
assembly and the tendency of the assembly to lose stiffness over
time. The former constrains the upper frequency range, and the
latter progressively degrades the overall sonic performance.
All conventional loudspeaker drive units (regardless of whether they
are voice coil-driven, ribbons, electrostatic, piezo or magnetostatic)
act like a piston, moving air in a 1:1 ratio with regard to the motion
of the driver. This develops a problem in that the specific weight of
air is much lower than that of the driving mechanism. As a result, the
air does not couple effectively with the transducer. In electrical
terms, this would be described as bad impedance matching between
source and load. In both cases (acoustical and electrical), the result
is less-than-optimal power transfer: usually, loudspeakers have a
degree of efficiency of a mere 1-2%.
A relatively early attempt to solve these problems was the ribbon tweeter, in which current is passed through a small aluminum
ribbon located in a strong magnetic field; however, problems with
this design included limited efficiency and dynamics. In addition,
the very low impedance of these early units necessitated an extra
transformer to drive them. Their viability as a general replacement
for dynamic tweeters was further reduced by the fact that these
tweeters typically could only be used for frequencies above 5 kHz,
consequently missing a great deal of critical timbral information.
ADAM Monitors
For many problems in loudspeaker technologies, ADAM has found
solutions and/or improvements which mark a true evolution compared to conventional approaches. With the ART tweeter and
midrange, ADAM presents a proprietary transducer technology that
drastically improves the driver-air-ratio. This is a progress that is not
just about marginal aspects but lies at the very core of the matter:
the musical reproduction.
With this progress and improvements in monitoring quality, a growing
number of the most famous and prestigious studios own and use
ADAM monitors – Abbey Road, Jazz at Lincoln Center, Onkio Haus,
20th Century Fox, Blackbird Studios, Masterfonics, Circle House
and Soundelux, to name a few. Elliott Scheiner, Chuck Ainlay, Kevin
Killen, Peter Cobbin and many more of the great masters working in
professional audio have chosen ADAM products as their reference monitors. Also, some of the best audio gear designers such as
Rupert Neve, Malcolm Toft and the engineers at Manley Electronics
use ADAM monitors to test their equipment.
Within the last 20 years or so, magnetostatic designs have superseded
the original aluminum ribbons. In this method of construction, the
aluminum ribbon was used in conjunction with a Kapton™ foil. These
designs achieved normal impedances, and therefore eliminated
the need for the extra transformer. Nevertheless, the problems of
unacceptably high crossover frequencies and serious limitations
concerning the dynamics remained unsolved.
...all electronics is being assembled and tested.S7Mk2 & S3X-H installation at “Fayez AlSaeed Sound” Studio, Dubai (UAE)
35
Page 36
X-ART Technology
The X-ART Technology
The X-ART (eXtended Accelerating Ribbon Technology) tweeters and
midranges incorporate a new approach to the Air Motion Transformer
concept originally developed by Dr. Oskar Heil. ADAM Audio has
improved upon this splendid idea utilizing superior geometries and
materials to achieve unprecedented audio fidelity. X-ART strikes a
new path concerning the kinematics of moving air, resulting in a
dramatic improvement in the quality of audio reproduction.
The X-ART membrane consists of a pleated diaphragm in which the
folds compress or expand according to the audio signal applied to
them. The result is that air is drawn in and squeezed out, like the
bellows of an accordion.
The ADAM X-ART design overcomes the piston-like motion of all
conventional drivers and their inevitable problems (see previous
page) by achieving an improvement in air loading by a factor of 4 over conventional transducers. To illustrate the basic principle by a
comparison: When you breathe, your thorax is moving slowly whereas
the air is moving comparably fast. Similarly, the X-ART diaphragm
presses the air faster in or out of its folds than they themselves
are moving. This markedly superior ”motor” is responsible for the
unprecedented clarity and pristine transient reproduction that can
be heard with the ADAM X-ART drive units.
In addition, the X-ART tweeter’s pleated membrane avoids the typical breakup/distortion and subsequent dynamic limiting at
higher frequencies of stiffer voice coil designs, such as those found
in dome and cone tweeters. Another positive result of the X-ART
design is that the driving ”stripes” are in direct contact with the outer
air and are cooled immediately.
More area = more dynamic
Diaphragm area is another important factor in determining the
dynamic range of a transducer. Basically, what you see is what you
get. The cone area you can see is always the acoustically active area
of the loudspeaker–this is true for practically all other drive units. By
folding the X-ART diaphragm into the 3rd dimension (as seen from
the listener’s position) a larger foil can be used, thus increasing the
acoustically effective area of the diaphragm by a factor of more
than 2.5 times. This results in higher dynamic output with extremely
wide dispersion.
Fig. 1: X-ART tweeter impedance: linear within ± 15 mΩ
(green) in comparison to a 1” dome tweeter (red)
Fig. 2: Phase response of the X-ART tweeter compared to a
1” dome tweeter
Fig. 3: Unfiltered X-ART tweeter with microphone position
in 0°
Fig. 4: The X-ART Principle: moving the air in a 4:1 ratio
Fig. 5: Area comparison between the unfolded X-ART tweeter
diaphragm and a 1” dome tweeter
36
Page 37
eXtended Accelerating Ribbon Technology
The X-ART tweeter
The lack of a traditional voice coil in X-ART tweeters results in a very
flat impedance (fig. 1). Please note the vertical scaling - in a normal
plot, the impedance rise would disappear in the line itself, as it is
1/500 of the normally expected value. Correspondingly, the phase
response is extremely flat within ±1.5°.
In summary, ART tweeters have a high efficiency (approximately 96
dB/W/m), a perfectly linear impedance (3.9 ±0.21), an equally
perfect phase response (±1° within the utilized bandwidth, fig. 2),
excellent directivity characteristics and a superb power handling
capacity; plus, the neodymium magnets and yoke (ring) utilized
in the X-ART units result in perfect magnetic shielding.
A groundbreaking technological innovation with easily discernible
superior performance and no technical flaws, the X-ART driver is
clearly unequalled in the annals of audio history.
The X-ART midrange
Because midrange is musically speaking the most significant
frequency band, the ADAM development team was particularly
interested in building a midrange driver using the same principle as
the X-ART tweeter.
The X-ART midrange driver uses a diaphragm that weighs only a fraction of comparable voice coil units, and can theoretically
cover the range from 400Hz to 20kHz. The large diaphragm area –
comparable to a 7” conventional midrange unit – permits very high, uncompressed SPL without compromising dispersion. The unit
has an absolutely flat impedance curve and consequently exhibits
linear phase behavior, with a mere ±0.75° deviation within the
utilized frequency band.
The result of this technological superiority is unmistakable. There is
a special openness that is immediately apparent to the listener when
auditioning ADAM monitors utilizing the ART midrange drivers. These
monitors are a quantum leap forward in musical accuracy, closely
approaching the ideal loudspeaker.
New A/B amplifiers for the X-ART tweeter
Every progress comes with new questions and difficulties. The new
X-ART tweeter with its extended frequency band up to 50kHz (-3dB
point) caused an interesting kind of problem: PWM amplifiers need a
low pass filter to separate the modulation frequency from the audio
band, and this may limit the reproduction capabilities of the new
tweeter.
The perfect partner for X-ART
So ADAM decided to design its own high frequency power amp to
allow the new high frequency unit to live up to its unique talents. A
power amp module was created that shows ultra low distortion (see
fig. 8) figures together with an excellent damping factor. An internal
bandwith of more than 1MHz is externally limited so that the unit
delivers an ultra wide response up to 300kHz. With nothing limiting
the talents of the X-ART tweeter, the monitor has unsurpassed clarity
and openness which will please, amaze and thrill even the most
experienced professional ear.
Fig. 6: New X-ART tweeter
Fig. 7: As unspectacular it looks, as spectacular is the audible result:
A/B amplifier for the new X-ART tweeter
Fig. 8: THD + Noise @ 1 W,6,25 W,25 W(AES17)
37
Page 38
Amplifier Technology and Woofers
Switching amps, switching power supplies
In recent years, amplifier technology has experienced its second big
change after transitioning from tubes to transistors some 40 years
ago. Semiconductors can still be found in this new generation of
amplifiers, but the signals to be amplified are treated in a completely
new and different way.
Pulse Width Modulation
PWM (Pulse Width Modulation) – sometimes referred to as Class D
amplification in contrast to the normal A or A/B transistor amplifiers,
and sometimes called Switching Amp Technology – converts the
incoming signal to a series of rectangular waveforms of equal height.
The width of the rectangles varies in time and the relation of the width
of the rectangles represents the musical signal. This waveform can
be amplified much more simply, as the transistors are not modulated
anymore. Instead, they are used as switches that only turn the power
supply voltage on and off. In the case of a single sine wave this looks
as shown at the bottom of the page.
It is possible that a very fast mechanical switch could do the job, but
power transistors are a better choice for the task, so PWM amplifiers
still work pretty much like conventional Class A/B designs. It is
important to note there are no bits and bytes involved, so ”Digital
Amplifier” is a misleading and inaccurate term.
Advantages
The main advantage of PWM amplifiers is their extremely high
efficiency (>90%). As a result, the heat to be dissipated is only one
fifth of earlier designs, leading to much lower temperatures within
the amps and making the use of heat sinks obsolete.
The HexaCone woofer
HexaCone woofers are an integral component in ADAM’s SX-Series
monitors. The core is a honeycomb Nomex structure that makes
them both extremely light and very stiff. The front and back of
the cone have been coated with Kevlar, one of the most advanced
synthetic materials available. Kevlar withstands elongation by a force
factor greater than 1000 times that of steel, enabling the cone to
resist deformation.
No break-up resonances
HexaCone woofers are far more rigid than paper, polypropylene or
aluminum devices of similar dimensions. Due to this rigidity, break
up resonances in the diaphragm cone are prevented. The effective
length and diameter of the voice coils in conjunction with the size
of the magnets and the available cabinet volume are all precisely
aligned for a musically optimal low frequency reproduction.
Authenticity instead of inadequate pressure levels
Another general problem observed frequently in many so-called
reference monitors is a disproportionate low frequency volume.
With massive woofers (and frequently inadequate acoustic pressure
levels!), the average listener is supposed to be impressed. However,
this approach results in an inaccurate representation of the overall
sound quality. ADAM woofers have been designed to reproduce
the given sound material with the highest possible authenticity,
guaranteeing ideal translation to the widest range of systems and
environments.
This principle has been known for decades, but time was needed to
develop units that perform at the leading edge in sonic reproduction
quality and yet still maintain the high efficiency mentioned previously.
The ADAM units presented here use the new technology for both
the amp and the power supply section (i.e. no more transformers)
combined with state of the art input and filter sections to achieve the
best in multi-channel active studio monitoring.
Fig. 9: Sinus curve with PWM signal
Fig. 10: HexaCone woofer
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SX Control Panel & D/A Converter
Control panel with „Virtual Ground Semiconductor Switch” Technology
Another innovation we present within the SX series is a control panel
with “virtual ground semiconductor switch technology”. That gives
you many different sophisticated controls as well as an accuracy and
repeatability of the values that has been unknown in the analogue
domain so far: whatever value you re-chose, you will get it to within
a <0,005dB accuracy! These panels are used in the models S2X to
S5X.
The rotary step switches on these panels are designed to switch
discrete resistors within a semiconductor resistor network that is
located on the amplifier module in the back of the monitors. They
allow for precise settings, which are much more accurate than usual
potentiometers. These exact settings are a true advantage for every
sound engineer who wants to make sure that switching back from
position ‘b’ to position ‘a’ is exactly the same setting each and every
time. Furthermore, there is no potentiometer-scratching and no
switch-scratching noise because there is no audio signal at the panel
itself – the music signals do not move back and forth between the
amplifier section and the front panel.
The controls at a glance:
• Input sensitivity is handled by two controls: one for coarse set-
tings, -20dB to +8dB in 4dB steps, and one for fine tuning in
0.5dB steps, ranging from -1.5dB to 2dB.
• There are two controls for the lower frequencies: One is an
equalizer at 80Hz that can boost up the response by 6dB in
1dB steps, the second is a shelf filter that allows you to pro-
gressively alter the frequencies below 150Hz in a ± 4dB maxi-
mum range at 2Hz in 1dB increments.
• High frequencies can also be adjusted by two different con-
trols: The first influences the tweeter ± 2dB in 0,5dB steps, the
second is a shelf filter that works for high frequencies above
6kHz in a ± 4dB maximum range at 20kHz in 1dB increments.
DA-SX: High accuracy D/A converter for the SXSeries
To work directly from digital sources ADAM offers a optional plug-in
D/A converter for the SX series. The converter install easily into the
back of the amplifier module and is designed to handle both AES (via
XLR) and SPDIF signals (via RCA or TOSLINK). Additionally a word
clock input allows external synchronization of the converter. ADAM
Audio’s custom D/A converter is made to the highest technical
standards and excels both in musical accuracy and technical data.
Controls and indicators:
„Mode” indicates:
• the selected input,
• the channel to be reproduced and
• use of the word clock input.
A 5 step analog attenuator is included.
A male XLR output carries the chosen digital input signal so chain-
•THD+N @ 1kHz, -10dBFS ≤ -98dB = 0,0013 % at all sampling
rates, bandwith: 20kHz (acc. to AES17)
•S/N @ 0dB attenuation: ≥ 114dB
-10dB -30dB
-0dB -20dB
XLR
Coax Optical
L R
Channel
AES3
Word Clock In
Digital
Thru
S/PDIF
Att.
-40dB
Mode
Clock
DIGITAL INPUTS
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Directivity measurements for room acoustics:
the EASE® balloons
Modern control rooms are often carefully planned with appropriate
3-D CAD software. Today this includes the simulation of room modes
and the absorption behaviour of the acoustic treatments.
Modern software solutions can give you a calculation of the resulting
sound field and even make the room audible via headphones. The
best known software currently is EASE® by Acoustic Design Ahnert Berlin. To ”know” the directivity behaviour of the speaker under consideration the program needs to measure responses in all possible
directions, and it needs these measurements for many different frequencies, as the directivity varies greatly with frequency.
These numerous measurements are combined in a so called balloon, that show the directivity in all directions at one distinctive
frequency. We present the S1X here at four different frequencies
while the complete set of measurement holds 240 balloons. An
acoustician can implement all the measurements into the software to preview the final frequency responses and the resultiing
sweet spot area.
ADAM offers EASE® balloons for the monitors of the SX-Series
on its website: www.adam-audio.com
Data Shown: S1X
Display Parameters: Frequency: 300Hz
(curve smoothing with 1/24th Octave)
Data Shown: S1X
Display Parameters: Frequency: 1000Hz
(curve smoothing with 1/24th octave)
Data Shown: S1X
Display Parameters: Frequency: 10kHz
(curve smoothing with 1/24th Octave)
Data Shown: S1X
Display Parameters: Frequency: 20kHz
(curve smoothing with 1/24th Octave)
40
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Technical DataAX-Series
Woofer/Subwoofer
3
Basket ø *
Voice coil ø
Cone material
X-ART Tweeter
Diaphragm area
Equivalent diaphragm ø
Velocity transfer ratio
Diaphragm weight
Built in amps
Subwoofer / Woofer
1/2
*
Tweeter
Controls
Volume
Tweeter level
Room EQ > 5kHz
Room EQ < 300Hz
General Data
Freq. response
THD 90 dB/1m > 100Hz
Short time sine wave acoustic output at 1 m from 100 Hz to 3 kHz
Max. peak acoustic output per pair
with music
Crossover frequencies
Input connectors
Input impedance
Weight
Magnetically shielded
Height x Width x Depth
Warranty
1/2
*
120 mm / 4.5”145 mm / 5.5”175 mm / 7”220 mm / 8.5”
Stands featured within this brochure are not supplied with the speakers.
ADAM Audio GmbH reserves the right to amend details of the specifications without notice in line with technical developments.
ADAM Audio UK Ltd.
email: uk-info@adam-audio.com
ADAM Audio USA Inc.
email: usa-info@adam-audio.com
ADAM Audio China
email: sales@adam-audio-china.com
www.adam-audio.com
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