Hi,   I have the Sr 325 is  and several similarly priced phones.   I would look first at the Sennheiser HD 600.   It actually has superior sound over- all to my ears, and I like the Grado a lot, especially the mid range. The Grado has a less than neutral sound signature, with an...

Some opera recordings, with dolby selected on the DVD in my case, come out extremely well on the Pioneer. I have compared it to a live symphony orchestra as well, sitting next to orchestra for several hours, played same opera on Pioneer, 20 mins later. Pitch perfect. Pitch memory lasts quite...

The higher end SC LX 81 may have a different Hphone jack from the base VSX 518, although it would be surprising. On the VSX it is Pioneer's own technology, as there is no dobly headphone symbol on the receiver. However, it is very similar in sound to an actual Headphone dolby output. You can...

Davenporter. I have just listened to the HD 650's with the Project Headbox 2, connected to a Denon this time. Do not get the Headbox for the HD 650. The Perreaux SXH2 annihilated it back to back. The Headbox has problems driving the 650. I did measure the HBox at similar decibels to the...

Simple answer. Yes get an amp. No not for power, but for quality consistency. Get a low output impedance amp for the HD 650. Most DVD players will not output DTS into a headphone amp. I have an older non hdmi version which does however. The amps sound better on stereo. It would seem likely...