Hello,Sorry to come barging in here with my questions, but if I remember correctly from a long time ago, this is what that thread is for .I have a Sansa Clip+, and a Leckerton UHA-6mk2. I am going to use it as a portable set-up with my HD650 and Fischer DBA002. Would it be better to use the UHA-6 as an amp (so Clip -> Leckerton -> headphone), or would that be 'gain staging' and actually degrade the sound? If it improves the sound, what volume's would I set both at?And is it true that the ATH-M50 doesn't benefit from an amp?That are my three questions, any help is always appreciated, have a great day
I would love to help you out, but unfortunately I can only speak for the KSC75 since I haven't heard the PortaPros. FWIW, I feel the KSC75 is a good value headphone and very competitive with cans many times it's price. It is however a little U-shapped (not too horribly so). It offers a very good mid-range IMO.
You should look into the Superlux models at around $30 (PortaPro is usually $39), Solderdude has a modding guide to fix most of their problems and they are a lot closer to a studio can than the KOSS on-ears. That said, the PortaPro stock is a little too bassy, both have similar sound characteristics but I prefer the PortaPro with a thicker foam to reduce the bass output, the midrange is fantastic and a little more transparent to my ears, however, the KSC75 has a wider left-right image due to the distance to the ears thanks to the clip-ons.The titanium coating seems to produce a more even treble response at the expense of more severe ringing at around 4 KHz.For future reference, if you want better flatness and transparency, I would seriously look into saving to get a T50RP + modding materials (~$130), a properly modded T50RP is better suited for studio work and hard to beat in value.
If you get either of the clip ons, headband mod them or else the cable will quickly wear out. My special lady killed two, each after the same 4.5 months, but the new one I bought her and headbanded is still going strong.I can't comment on the differences between them because it's been too long since I've heard any besides KSC75.Best luck!