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Original owner. The Pathos Acoustics Aurium headphone amplifier integrates perfectly with any home head-fi system, fitting neatly in a desktop system or in an audio rack with other gear. It performed capably with three different headphones I used, each with a different sonic signature and power needs. I adored its looks. And I loved its sound, which served every kind of music equally well. If you’re looking for something with real power and versatility, arresting looks, and seriously good sound, this is the headamp for you. Perhaps most impressive was how the Aurium was able to drive the Audeze LCD-3s -- open-backed planar headphones that can sound veiled and bass-heavy with lower-powered amplification. With a listed sensitivity of 91dB at 1mW, the LCD-3s are pretty hard to drive -- Audeze lists their optimal power requirement as 1-4W. The Aurium’s generous 3.6W lit them up so well that I found the LCD-3s close enough in resolution to the HD 650s, and superior in richness, bass, and overall slam and impact. The Audezes’ claimed frequency response is prodigious -- 5Hz-50kHz -- and their nominal impedance is 45 ohms, purely resistive. Consistently, the Aurium’s sound is harmonically rich, resolving, and robust in terms of power, punch, and slam. Dynamic scaling and contrasts are always convincing, and with every kind of music. The Aurium reproduced with great timbral acuity the rich textures of violins, woodwinds, pianos, and horns, and with a spectral balance that didn’t favor or spotlight any one sector of the audioband. It never sounds pushed or strained, tipped up or bass heavy. My listening experience was entirely delightful. The Aurium is a squarish, compact box measuring 7.8”W x 2.3”H x 9”D and weighing 6.6 pounds. Its case is made of fine-grained aluminum available in silver-gray, the top plate perforated on each side with three parallel rows of ventilation holes; toward the rear, the two EH6922 tubes rise from the top plate just over an inch. On the bottom plate are four feet of noncompliant plastic.
Buyer pays shipping (CONUS and CANADA) and PayPal fee (3.5% US and 3.75% Canada).