The Adam Audio T7V 7-Inch Powered Studio Monitor is a two-way studio monitor designed for vertical use in a nearfield application. The T7V features a 7-inch woofer that provides bass extension down to 39 Hz, while the U-ART tweeter’s diaphragm provides pristine and extended high-frequency response up to 25 kHz virtually unheard of in monitors in this price range. ErgonomicsThe U-ART tweeter is fitted to a precision waveguide with the same dispersion-control attributes as the high-frequency propagation waveguide used in ADAM Audio’s flagship S series studio monitors. The waveguide’s highly uniform dispersion of high frequencies provides an incredibly wide sweet spot that frees you from being glued to a rigid mix position while working.MechanismOn the rear side of the T7V’s beveled cabinet, a rear-firing bass reflex port joins a sturdy metal backplate that’s home to the analog input connections. The U-ART tweeter is powered by a 20 W Class-D amp, while a 50 W Class-D amp serves the woofer. These new powerhouses yield an impressive maximum of 110 dB SPL per pair. The wide frequency response, high dynamic range, excellent transient response, wide sweet spot and small footprints make the T7V perfectly suited for use in small control rooms for music production, video post-production and broadcast production, a great fit for the modest budgets that many facilities need to work with.U-ART High Frequency DiverThe new U-ART 1.9-inch accelerated ribbon tweeter, as used in the T Series, is made of a high-tech polymide film and provides pristine and extended high-frequency response up to 25 kHz, virtually unheard of in monitors in this price range, and a breakthrough solution for use in high-resolution recording and mixing on a budget. Unlike a conventional dome or cone tweeter that uses a piston action to move air and reproduce sound, the U-ART tweeter uses a pleated ribbon that alternately draws air into its folds and squeezes it out as the folds respectively expand apart and press together in response to inputted audio signal. This design produces four times as much air movement as does a piston-based design, creating higher sound pressure levels (SPLs) with lower distortion.HPS WaveguideThe HPS (High-frequency Propagation System) waveguide was initially designed at ADAM Audio for the S-Art Tweeter of the S series range with the aid of the latest computer modeling techniques. It hones the dispersion of the speakers to an even, uniform consistency, broad in the horizontal axis but tightly focused in the vertical plane. This minimizes potentially distracting reflections from the horizontal surfaces of significant studio furniture (for example mixing consoles), ensures that imaging remains constant, and creates a large, well-controlled, and stable ‘sweet spot’, even at high output levels.Pulse Width ModulationPWM (Pulse Width Modulation) sometimes referred to as Class D amplification, 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. 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 AB designs. It is important to note there are no bits and bytes involved, so 'Digital Amplifier is a misleading and inaccurate term.