Originally posted by: Tiamat
Originally posted by: moonboy403
Originally posted by: RupTheKid
The true high quality circumaural Sennheiser headphones are the 580, 600, 650, and 800. I have owned all of these, and I would say the 600's are probably the best for price/performance ratio. I wouldn't recommend any of the other Sennheisers, including the 555, 595 etc. Totally apples and oranges in terms of true sound quality.
You got your hands on HD800? :Q
Originally posted by: Tiamat
That isn't really true. Denon D2000 does not require an amp. It has low impedance magnitude across the audible frequency range, no impedance magnitude swings across the audible frequency range, and reasonable sensitivity.
Do Beyers and Sennheisers (for example) require amping? Certainly their impedance profile would suggest that they would benefit the most out of amping. Can the Denon D2000 benefit from amping? Perhaps, but certainly not as much as Beyers or Sennheisers would by a huge margin.
No headphone requires a dedicated headphone amp, but they all benefit from it. Generally, low impedance cans thirst for high current while high impedance ones thirst for high voltage swing.
Higher impedance typically requires more potential, while lower impedance typically requires more heat dissipation due to the relatively higher current demands. For reasonably sensative headphones, head dissipation in the amp is not a problem. Now, electrostatic headphones are a B**** to drive properly.
Headphones may benefit theoretically from an amp, but the only way to find out if those benefits are really audible is to try it out.
Generally, high sensitivity, low-med impedance headphones will not audibly benefit from using an amplifier in a double blind experiment.
OP: For lower budget, the Koss Portapro is pretty good. The comparable sennheiser (PX100?) is also pretty good. I'd say they are almost interchangeable in terms of recommendations go.