The Stax SR-007, also known as the Omega 2, served as the flagship model for Stax from its release in 1998 until its discontinuation in 2011. Notable for its elegant design, this over-ear, open-back headphone emphasizes comfort with a relatively lightweight structure, weighing approximately 371g. The SR-007 is characterized by its high impedance of 170k Ohms and a sensitivity rating of 100dB at 100V, which means it requires a powerful amplifier to realize its full potential. Its warm sound profile has drawn comparisons to other brands, with a bass response that is elevated by about 2-3dB and provides a satisfying extension, while its midrange is described as rich and refined. However, the treble can sound thin at times, exhibiting a 10kHz peak that contributes to an airy but less cohesive quality. Users have noted that the headphone can exhibit a compressed sound if paired with inadequate amplifiers, underscoring its demand for high-quality amplification to avoid compromising its dynamic range. Average used prices for the SR-007 typically fall between $1200 and $1700.
