The A7X powered, 2-way nearfield monitor features ADAM’s proprietary, highly musical ribbon tweeter, 7″ carbon/glass mid/woofer, and 100W/50W bi-amplification
The award-winning A7X is ADAM’s best-selling, 2-way nearfield monitor, not simply because of its exceptional performance to price ratio, but because it provides mixers and engineers with a serious mixing tool—and bonus—without breaking the bank. The A7X features a battery of proprietary ADAM technologies, including the accelerated ribbon tweeter that put them on top of the monitor world out of the box. The X-ART tweeter produces superior transients, detailed upper mids and highs, and an extremely wide sweet spot. Handling the mids and lows, the A7X has a redesigned 7″ mid/bass driver with a larger voice coil driven by a 100W LF/50W A/B PWM amplifier, which is twice the power of its ancestor, the A7. These driver and amp designs combine to create a studio monitor that outputs an amazing, distortion-free sound with a deep, controlled bass and smooth, musical highs that allow for long mixing sessions without ear fatigue.
ADAM A7X powered nearfield monitor in one take:
- X-ART tweeter
- 7″ carbon/rohacell/glass fiber-mid/woofer
- 50W/100W bi-amplification
- On/off switch and volume control on the front panel
- 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-year warranty
Precision X-ART tweeter
The X-ART tweeter comprises a corrugated ribbon diaphragm, in which the folds compress or expand according to the audio signal applied to them. By folding the X-ART diaphragm a larger foil can be used, increasing the acoustically effective area of the diaphragm by a factor of more than 2.5 times over conventional dome tweeters. This results in higher dynamic output with extremely wide dispersion. With the increased surface area, the X-ART tweeter shows an improvement in air loading by a factor of 4 over conventional transducers, providing 4dB higher efficiency and reproducing frequencies accurately all the way to 50kHz. The linear response to 50kHz reduces in-band phase shift, which has a profound effect in the audible spectrum: less coloration, more realistic space and depth, and better perceived dynamic realism,
In addition, the X-ART tweeter’s folded 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.
Since the X-ART tweeter has an extended frequency range, it presents problems with the use of pulse-width modulation, or switching amplifiers, which are known for their efficiency. However, PWM amplifiers require a low-pass filter to separate the modulation frequency from the audio band, which in turn could limit the high-frequency reproduction capabilities of the X-ART tweeter.
ADAM engineers put considerable time and effort into creating a high-frequency power amp to allow the X-ART tweeter perform up to its abilities. The result was an ultra-low distortion power amp module that delivers an ultra wide response up to 300 kHz. With nothing limiting the X-ART tweeter, the monitor has unsurpassed clarity and openness which will satisfy the most experienced professional ear.
The tweeter is driven by a 50-watt amplifier and the bass/mid-woofer by a 100-watt PWM (pulse width modulation) amplifier. The amplifier produces a very clean reproduction of the midrange frequencies with a seamless transition in the crossover from the 7″ woofer, which operates in the range of 42Hz to 2.5kHz.
Controls and connectors
The front panel of the A7X has a power switch and a volume control that retains the level setting independently from the on/off switch. Rear-panel controls include gain for the high frequencies (± 4dB) and two shelf filters for high and low frequencies. Rear-panel connections include an IEC connector with a 115V/230V switch for international use, unbalanced RCA input, and balanced XLR input.
The A7X‘s detail, sound image, tonal depth, and stereo localization is nothing less than inspirational to music producers, engineers, and mixers. For more information, call or chat with your Westlake Pro Sales Consultant today.