Amp: Headroom's Balanced Ultra Desktop Amp using balanced TRS to XLR cables
DAC: Grace Design m903 running in balanced mode
Source: Low compression mp3 / AAC ( 198 kbps or better ) via Foobar2000
Headphones: HiFiMAN HE-400i, and JH Audio 10 x3 Pro
Looking for sound quality improvement?
1.) Better source material ( well recorded music )
2.) Better headphone ( go from the Koss Porta Pro and end near the LCD-3 )
3.) Better DAC ( especially if you do computer listening )
4.) Better Amp ( some amps deliver less noise and a cleaner low end while extending the treble )
5.) Lastly let your brain filter have time to understand the new sound signature
There is no perfect headphone.
Asking "What is the best headphone for..." is subjective so expect many answers possibly disagreeing.
Using the words " noob" and " lurker" only make you look stupid.
Objective measurements tell at least half the story.
Price has little to do with performance.
In business...money is king.
Comparing headphones all day takes the fun out of listening to music.
For most of us headphone listening is more of a hobby so enjoy it!
'Hey, what was your first headphone? Answer: Koss Nova Pro circa 1980.
Secret advice. Always ground your quarter before putting into the MS Pac-Man machine
Headphone Amp Inventory:
Headroom Total BitHead ( Sold, outdated by current technology )
Headroom Balanced Ultra Desktop Amp ( BUDA )
Grace Design m903 reference headphone amplifier / DAC ( running USB 2.0 )
Music Hall 25.3
Pro-Ject Box E USB DAC
Pro-Ject Box S USB DAC
Schiit Bifrost 4490 DAC
SMSL SD793II DAC / amp
SMSL VA2 amp
SMSL M8 DAC
Topping AX-2 DAC/amp