The ADAM Audio A7X-SUB12 5.1 MACDOUGAL BUNDLE is a 3-way matched surround system comprising a 12" SUB12 subwoofer and five 7" A7X active monitors featuring the X-Art ribbon tweeter.
ADAM Audio A7X
The ADAM Audio A7X is a 2-way, 50W/100W studio monitor with ADAM’s game-changing ribbon tweeter, 7" composite woofer, custom 50W HF/100W LF amplification, and a sweet spot for days
The A7X is ADAM Audio’s best-selling studio monitor for a reason: it’s an unbeatable combination of affordability and audio performance capable of satisfying professional ears. The multi-award-winning A7X is bi-amplified, with a 50-watt, custom A/B Amplifier feeding the X-ART tweeter, and a custom 100-watt, PWM (pulse-width modulation) amplifier powering the A7X’s 7" woofer. Between the smooth high-frequency reproduction of its X-ART ribbon tweeter and frequency range up to 50kHz, the A7X has a stunningly accurate sound stage, impressive transient detail, a sweet spot for days, and does it all without inducing ear fatigue prematurely—perfect for long mixing sessions. The A7X‘s ability to exactly reproduce even the tiniest sonic detail, midrange clarity, tonal depth, and superior localization of instruments within the stereo field is not just inspiring, it’s the reason why the A7X is the perhaps the most positively reviewed monitor in recent years.
Adam A7X key—Just the Facts:
- X-ART folded ribbon tweeter
- 7" carbon/Rohacell®/glass fiber mid-woofer
- 50W/100W amplification
- Front panel on-/off-switch and volume gain
- Tweeter gain and 2 shelf filters on the rear panel
- 42Hz-50kHz frequency range
- XLR and RCA connectors
- 114dB max peak SPL per pair
- 5-years warranty (2-year with 3-year optional extension)
ADAM A7X—Behind the Grille
X-ART folded ribbon tweeter technology
From its inception, ADAM Audio emerged as a major force to be reckoned with in pro audio monitoring, mainly due to its innovative folded ribbon tweeter. The ribbon tweeter is based on the Air Motion Transformer concept developed by Dr. Oskar Heil, which is a pleated diaphragm similar to the shape of bellows. From the standpoint of surface area response, a 1-inch-wide pleated diaphragm is comparable in function to an 8"-diameter cone. The folded driver acts like a point-source version of a larger driver, which inherently results in lower distortion during sound reproduction. Another property of the folded diaphragm is that its squeezing movement projects air with a speed approximately five times faster than the speed of the ribbon driver itself.
ADAM engineers took this technology and improved on it, incorporating superior geometries and materials to achieve unprecedented audio fidelity. The latest iteration of the ADAM folded ribbon tweeter is the X-ART, which explores new paths in 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, such as narrow directivity, by achieving an improvement in air loading by a factor of 4 over conventional transducers. In addition, the X-ART tweeter’s pleated membrane avoids the typical breakup/distortion and subsequent dynamic limiting at higher frequencies 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.
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 a higher dynamic output with extremely wide dispersion.
Custom A/B amplifier
While the X-ART tweeter’s solved certain problems associated with conical tweeter designs, its wide bandwidth up to 50kHz, though responsible for the musicality and openness of the A7X’s high-frequency response, also created a problem in terms of amplification. PWM (pulse-width modulation) amplifiers, which have become popular due to their high power efficiency and low distortion, require a low-pass filter to separate the modulation frequency (the point where power switches from the supply rails) from the audio band. it imposes a limitation on the high-frequency reproduction of the X-ART tweeter. To preserve the wide bandwidth, which in turn preserves the phase coherency and resultant realism of audio in the audible range, ADAM put considerable time and effort into creating a high-frequency power amp to allow the high-frequency tweeter to live up to its potential.
The perfect partner for X-ART
An internal bandwidth of more than1MHz is externally limited so that the unit delivers an ultra-wide response up to 300kHz. With nothing limiting the abilities of the X-ART tweeter, the monitor has unsurpassed clarity and openness which will daze and amaze even the most jaded professional ear.
ADAM driver technology
The A7X’s perfect integration of the X-ART tweeter with the lower frequencies is the result of a re-designed 7" mid-woofer with a much bigger voice coil (1.5") that operates in the range of 42 Hz to 2.5 kHz with a seamless transition in the crossover to the X-Art tweeter. The AX7 composite driver is driven by an amplifier with twice the power of its predecessor, which achieves a very clean and nuanced reproduction of the midrange frequencies. This configuration produces amazing sound at high pressure levels, offering distortion-free musical reproduction.
PWM custom amplifier
PWM (Pulse Width Modulation) also known as Class D amplification or switching amp technology (and mistakenly digital amplification), converts the incoming signal to a series of rectangular waveforms of equal height. The width of the rectangles varies in time and represents the musical signal. This waveform can be amplified much more simply, as the transistors are used as switches that only turn the power supply voltage on and off.
It is possible that a very fast mechanical switch could do the job, but power transistors are a better choice for the task, as such, PWM amplifiers work pretty much like conventional Class AB designs.
Advantages of PWM
The main advantage of PWM amplifiers is their extremely high efficiency (>90%). As a consequence 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 unnecessary.
While PWM is highly efficient, pulse-width modulation causes signal distortion due to non-linearity of the modulation based on transient response. Usually, some form of noise-shaping filter is required to eliminate the distortion. However, that alone wasn’t good enough for ADAM engineers, who set out to develop PWM units that would perform at the leading edge of sonic quality while maintaining high efficiency. The ADAM units use a proprietary 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 monitoring.
Cabinet and bass reflex construction
Like the other AX-Series models, the upper and lower corners of the A77X are slanted to minimize reflections that otherwise would cause comb filtering with the direct signal. The very large, double bass reflex tubes on the front have been specifically designed to perfectly match the mid-woofer and its large voice coil.
Front- and rear-panel controls and I/O
The front panel of the A7X has a power switch and a volume control with level settings up to +14dB. Rear-panel controls include high-frequency gain (± 4dB) and two room compensation shelf EQs for high and low frequencies (±6dB). Rear-panel connections include an IEC connector with a 115V/230V switch for international use, unbalanced RCA input, and balanced XLR input.
What the pros are saying about the ADAM A7X
“Seven testers from different backgrounds have each come to the same conclusion: The review winner is the ADAM A7X!” (tools4music, Germany, 6/2010)
“I expect the ADAM A7X to dominate the conversation for a long time to come.“ (DV Magazine, UK)
“We could observe improvements in all respects.”
“...sounded noticeably better in every respect.”
(Sound On Sound, UK)
“...extremely lively and “shareful” sound with the finest high-frequency resolution.” (stereoplay, Germany)
“...I’d be tempted to choose them over anything else in a similar price range.” (FutureMusic, UK)
The ADAM Sub12 is a 12", 200-watt powered subwoofer system with bass extension down to 22Hz, 115dB max SPL, and high-pass filter for ADAM AX- and SX-series near- and mid-field monitor systems
While larger monitors with larger woofers can handle bass more effectively than your average 6" – 7" driver, the reasons to add a subwoofer remain the same, and it’s not simply to be able to crank the bass (fun as that may be). In fact, the reason has little to do with volume and much more to do with clarity across the frequency spectrum. By separating bass chores from the monitors, the critical midrange is no longer burdened by crossovers or bass resonances creeping up into the mids. Also, since instruments such as bass, kick drum, and keyboards have a frequency response that extends below the usual cutoff, a subwoofer gives you a clear view into what’s happening in the low end, making placement of bass and kick easier. In an effort to preserve headroom and clarity by filtering low frequencies willy-nilly you may discover that your mixes sound thin and unimpressive played back on other systems. The Sub12, with its extension down to 22kHz, also enables you to make intelligent and informed decisions in high-pass filtering. Plus, physical placement of a sub enables you to compensate for room modes, standing waves, and nulls that can occur from reflections from nearfield and midfield monitors. With an ADAM Sub12, you can make your mix decisions based on reality, not “inspired” guesses.
ADAM Audio Sub12—Just the Facts:
- 12" subwoofer (paper)
- Amplifier power RMS/Music, 200W/300W
- Frequency response, 22Hz-150Hz
- Maximum peak SPL 115dB
- Energy-saving “Signal On” mode
- Easy manual or automatic deactivation for monitoring with or without the sub
- Additional sub output enables dual sub system
ADAM Audio Sub12—Behind the Grille
The ADAM Sub12 features a special woofer with extended cone travel and heavy-duty coil optimized for accurate reproduction via bass reflex enclosure. The down-firing bass reflex tube avoids intrusive ventilation noise because of its large size and shape.
Efficient Class D amplifier
The PWM (pulse-width modulation) amplifier produces over 90% efficiency and can handle critical passages without overheating for long periods of time. An additional output allows you to cascade as many subwoofers as needed.
The Sub12 subwoofer provides a precise combination of low cutoff frequency (-3dB at 22Hz) and an undistorted high sound pressure level (115dB SPL at 1m).
I/O and rear-panel controls
The Sub12 I/O includes left/right balanced XLR and RCA unbalanced inputs and outputs. The Sub12 has a phase switch that enables you correct phase in relation to the mains. The rear panel also has a balanced XLR sub out that mirrors the input signal, which allows you to daisy-chain as many Sub12s as you like. The Sub Level control lets you control the volume of all the subs at once. The satellites can be driven full range or with an 85Hz high pass.
The Sub12 controls include Sub Level, which controls the Input Sensitivity from -60dB to +6dB. It also has a Sub Filter control that adjusts the upper-frequency limit, which is variable between 50Hz to 150Hz.
There is also an energy-saving mode switch that determines how the Sub12 responds to an input signal, which is either continuous, or responds to the input signal, and shuts down when no signal is present for 15 minutes.
ADAM Sub12 features and benefits:
Bass reproduction down to 22Hz
- For addition to nearfield and midfield monitors
Maximum Peak sound pressure in 1 m ≥ 115dB
- Powerful, compression-free sound reproduction even at very high sound levels
High-efficiency PWM amplifier
- Low-distortion amplification at both low and high volume levels
Special 12" woofer with paper diaphragm
- Unrestricted bass reproduction for low-fatigue operation even at high volumes
Easy manual or automatic deactivation
- Enables mix referencing with or without low frequencies
Additional sub output
- Lets you build a dual bass array
Downward-firing bass reflex tube with large dimensions and corresponding rounding
- Prevention of air turbulence noise
Crossover frequency selectable between 50Hz-150 Hz
- Allows optimal adaptation of the total system on the bass performance of the satellites
Connectable high-pass filter for the satellite outputs, which blocks signals below 85Hz
- Dolby®-Fair reproduction of film sound
- Disconnecting the satellites from the low frequencies
2-year warranty with an optional extension to 3 years with the registration of the Sub12
- Full repair service if required for 5 years
The ADAM Audio A7X-SUB12 MACDOUGAL Bundle a professional-quality 5.1 system that's both affordable and highly accurate. Order yours today. For more information, call or chat online with your PAD Studio Specialist.
- Tweeter: X-ART
- Velocity transform ratio: 4:1
- Equivalent diaphragm diameter: 2" / 56 mm
- Woofer: 7" / 175 mm
- Woofer material: Carbon/Rohacell®/glass fiber
- LF amplifier: 100W RMS/150W music, type PWM
- HF amplifier: 50W RMS/75W music, type A/B
- Input sensitivity: -∞ to +14dB
- Tweeter gain: ±4dB
- High shelf EQ > 5kHz: ±6dB
- Low shelf EQ < 300Hz: ±6dB
- Frequency response: 42Hz – 50kHz
- THD 90dB/1m>100Hz: ≤ 0.5%
- SPL with sine wave 100Hz-3kHz in 1m: ≥ 106dB
- peak acoustic output in 1m per pair: ≥ 114dB
- Crossover frequency: 2.5kHz
- Input: XLR/RCA
- Input impedance: 30k ohm
- Magnetically shielded: N/A
- Dimensions (HWD): 13-1/2" x 8" x11" (337 x 201 x 280 mm)
- Weight: 20.3 lb. / 9.2 kg
- Subwoofer: 12" / 310 mm
- Voice coil diameter: 2" / 50 mm
- Woofer material: Coated paper
- Built-in amplifiers: 1
- Subwoofer channel 1/2: 200W/300W
- Frequency response: 22Hz-150Hz
- THD >60 Hz: ≤ 1%
- Maximum peak: ≥ 115dB
- Crossover frequency: 50Hz-150Hz
- Inputs: XLR / RCA
- Input impedance 10k ohm
- Weight 57.3 lb. / 26 kg
- Dimensions (H x W x D): 23-1/2" x 14" x 17-1/2" / 600 x 360 x 450 mm
- Warranty: 2 years with 3 years optional extension