California-based Apogee Electronics, which has been building state-of-the-art DACs for more than 30 years, has released the Apogee Groove, a portable USB DAC and headphone amp. The Groove uses Apogee’s trademark Constant Current Drive output stage, whose output voltage is dynamically altered by impedance variations of the connected headphones, which has the effect of smoothing-out the frequency response non-linearities that occur with traditional headphone outputs. ‘ Apogee’s Constant Current Drive is a truly revolutionary approach to dealing with the wide impedance variations of headphones available on the market today,’ says Betty Bennett, Apogee Co-Founder and CEO.

Apogee Introduces Groove Portable Usb Dac And Headphones

Mactec nvg2 drivers for mac pro. ‘ Because of this, the Groove unlocks the highest possible quality of any headphones you have, allowing you to listen to the music you love with incredible life-like clarity.’ Also featured inside the Groove is Apogee’s ‘Quad Sum’ DAC technology, which involves using four digital-to-analog converters per channel. ‘ The use of four ESS Sabre DACs per channel allows the Groove to achieve the highest dynamic range and lowest distortion (THD+N) of any device in its class,’ Bennett told Australian Hi-Fi Magazine.