DefQon
Headphoneus Supremus
- Joined
- Jan 14, 2011
- Posts
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- 147
After doing additional research, I found that the PM-1's likely competition is composed primarily of low-impedance planar magnetics. One example, the HiFiMAN® HE-500 (Zo = 38Ω), is rated for 89 dB (at what volts RMS?) and, according to the manufacturer, can run off regular headphone amplifiers - I wonder whether that means the stock Texas Instruments® TP6120A2 in my XONAR®, the HiFiMAN® EF-5 (which can deliver 2W into a 30Ω load), or my powerful-enough-to-blow-headphones-other-than-electrostatics Pyle® PCA2 (rated for 40W into a 4Ω load)?
Do you take your sweet time and effort to print those trademark symbols?