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The two big operative words with Oppo PM-1 are balance and precision. No singular part of the frequency range sounds hyped or blown-up including the uppermost highs which are rendered with an accuracy that's transparent and slightly glossy without trace of sharpness or edge. The low bass is far from exaggerated, instead anchoring the music with a deep, warm delivery that offers intricate detail resolution and great extension without a heavy or overbearing presence. For most listeners, we think the bass response is nicely tight and accurate, but for big bassheads, the Oppo PM-1 may perhaps lack the punch or slam required for certain genres of modern music.
The Oppo PM-1 is the result of many years of dedicated high-end headphone research led by a team comprised of passionate audio and acoustics engineers, chemical and materials scientists and general audiophiles. Naturally, a goodly number of technological breakthroughs have made their way into the PM-1, including the use of a unique 7-layer Oppo-exclusive diaphragm, double-sided spiraling coils and an FEM-optimized magnet system that's also found only in the PM-1.
The PM-1 outer construction design is large-sized overall but very streamlined and the fit on the head is extremely comfortable. The PM-1 can ably fit heads of various sizes and shapes, which is not always the case with big audiophile headphones. Given the large deep-well earpads, most of our headphone.com review team can wear this headphone all day or on long trips with no ergonomic discomfort setting in. The isolation value is also quite solid and can effectively attenuate a good deal of ambient background environmental noise. The sealed-back design also keeps the music in your headphones from leaking out and potentially disturbing others nearby, a must-have feature if you listen in office cubicles or in other quiet places. The detachable cable is easily replaceable if ever needed, which adds excellent extended use life for these great Oppo cans.
The Oppo PM-1 comes with a free 1-year manufacturer's 'repair or replace' warranty honored only when purchased through true authorized Oppo headphone dealers, like us right here at headphone.com!
What's In The Box:
Oppo PM-1 Frequency Response