A quick update on the Oppo PM-1 Planar Headphones.
I'm working with a finished production sample of the new headphones for an upcoming review and here are some brief impressions. This is based on a review sample, so the final packaging details, etc. might be different, as they aren't shipping yet.
DS-DAC-100M, the Cambridge Audio DAC Magic, the Oppo BDP-105, and the AudioEngine D3, and in all cases, they drove the headphones without a problem, which was a really pleasant surprise.Many of the planars I've used, such at the HiFi Man, seem very demanding of the amplifier circuit, but the PM-1's are nowhere that finicky. I did find a richer, fuller sound with higher output sources, such as the BDP 105, so I think when paired with a dedicated high quality headphone amp, that the phones will really hit their peak. My brief test with HA-1 revealed an incredibly substantial unit, and design, so I suspect that when paired with the PM-1s, it will be a positive synergy.One last note. I had the headphones on last night for several hours straight as I worked on my computer. And.. no stress, or discomfort. In fact they were so comfortable that I kept walking around with them an forgot I had them on, and they weren't even plugged into anything!I hope this helps. We will publish a full review on MacEditionRadio.com in the coming weeks.Harris
How were you able to get a pair to review exactly?