Headphone Reviews and Discussion - Head-Fi.org
d9chere
d9chere
Hi, thank you for your review,
I have a question are they (pm-2 or 1) really good without of additional amp?
I've portable player with next spec:
 
Amp analog output: 2.8V RMS highest, 97% volume output, distortion <= 0.003%, desktop class AB amp circuits, power output, third gear gain
Line Output: 1.4V RMS
Coaxial output: 0.5V p-p, PCM & DSD (DOP)
Distortion + Noise (headphone output): <= 0.002% (44.1khz, 1khz DS3)
Dynamic ratio (headphone output):> = 115db.
Background noise (headphone output): <- 130db.
 
And I'm afraid it'll not be enough to fully open pm.
Can you please comment this? Thank you.
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