Hi, I just wonder a little about how self biased amps work. All I know (I believe) is that they need the current/power from loudspeaker amps (?) to drive them. My parents have this Stax headset and amp combo that has not been used for some years. Some the reason I wonder is in case that I...

The K271s are widely discussed on this forum, and I've read some threads about them in comparisons to a900 and dt250, but as my only true headphone reference in this price range is Grado SR-125, Im having a hard time getting an idea what size their soundstage actually is. I consider buying...

I've had the Grado sr-125s for some time, mainly using my laptop (headphone out) as its source. Im only using them indoors, as outdoors I use a couple of cheap AKG-k26 closed phones. The volume is never a problem with the Grados, at least not with the laptop, so I only wonder about sound...