General Information
ADAMs A7 & A7X: the evolution of a legendThe 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 worlds 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 technologyThe 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 / controlsEach 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 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.
! I matched them with a tube-dac that added the perfect warmth/mid-bass extension to the technical (neutral) studio monitor sound. I just added the Adam Sub-8 (bass woofer more so than sub) to my setup equaling a classic 3-way sound. Playing high-res 24/96 flac files on my new digital rig is moving closer to my 80's vinyl reference rig (10in rosewood technic tt, nakamichi dragon, carver preamp & mono blocks, ads bi-amp 4-way towers). The sub is really not needed for 95% of my listening requirements but it does add that subtle growl that is present in most recordings from time to time and when your this close to digital mid-fi bliss (on a shoestring budget) with analog hi-fi memories, why stop short LOL!! I replaced the power cables on both monitors and sub with higher-end aftermarket power amp cables for additional dynamics and bass extension IMO! The cable upgrades and tube-dac are not needed for great sound though, I used the A7x with my MBP audio out via rca adapter for the first month and they sounded very very nice. 
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