What filter are people using 1 or 2?
I find myself usually using 2.
I use 1 for non-acoustic, 2 for acoustic, recordings of microphones. Sometimes I find I left it on 1 despite moving to acoustic recordings. It is such a subtle difference between the 2 filters.
I'll have to listen closer again...I basically just flipped between them and decided Filter 2 was my preference. I did not do a long comparative listening session.
Thanks for the reply sir. :) Can you elaborate on the effects of the HP-P1 when used with the HD25? I'm actually thinking of buying the HP-P1 then add it to my idevice and HD25 as my end all portable rig(if that exists :P). Or just get the Amperior and a better portable amp ~$300 that's better than my PA2V2.
My own experience was that the HD25-1 ii was surprisingly not good a good pairing with the HP-P1. The sound is "crowded" is the best explanation I can think of, just too packed in--the opposite of "spacious."
This is in comparison to my Westone 3s and AKG K550s.
First consider the music that will be mostly used.
Orchestral/classical/voice/acoustic microphone recordings, the T5p are marvellous. Then I listen to electronic/synth/studio heavy processed stuff and T5p are weak as can be, I change to another headphone (DT1350 ).
I suspect the Ultrasone SigPro and the T5p are two products at opposite ends on the spectrum. The Ultrasone seem DJ/studio orientated, complete opposite of T5p.
Hope that helps sort out your mortal struggle.