Originally Posted by dark_knight35
Do you think that the IEMs you're selling give a better sound than my IE2's with the IRS that you made for me (which is really great :thumbup?
Please regard it as a gift of appreciation for your donation, not a "selling", which is a sensitive word
I dare not comment, because both phones have been IRS optimized... but the S4A-01 should have better bass extension thanks to its conventional IEM design and IEM seal, compared to the open earbud-IEM hybrid design of the IE2...
Limitations of the S4A-01:
-dollar-store build: while I think the housing itself looks pretty good, the cable and the damping material over the nozzle leaves something to be desired, shall we say
But it's sonically a good thing that there's damping at all over the nozzle
-no packaging or accessories: to save on shipping, I shall be putting these directly in envelopes and mailing them as air mail. As far as I know they only come with the one pair of tips shown, so if these don't fit, you have to find something that does.
-isolation and microphonics: as shown in the picture, they are semi-open at the back, and do not isolate outside noises that well. I use a shirt clip with them and microphonics is manageable, but probably above average.
-supported devices only: I'll post EQ and convolver settings for use with the S4A-01 on computers, but you better make sure you are running a computer player (such as foobar2000) or an android with V4A or other supported software if you want to listen to them seriously
Advantages of S4A-01:
-Audiophile WTF-factor: the sound difference before and after applying the V4A is just unreal. The corrected sound is not just "good for a dollar store earphone", but "good", period.
-More Audiophile WTF-factor: with V4A running, the S4A-01 will sound great while practically any other phone plugged into your android will sound atrocious. If you play a song someone is not familiar with, he may conclude that his $$$ pair of phones is having a really bad day and look at them in dismay
-Even more audiophile WTF-factor: for additional WTF-ness, my demo pair of S4A-01 was wired wrong so that the left and right buds are out of phase with each other. This is corrected for in the S4A-01i irs profile. If you're so lucky as to get a phase-inverted pair just like me and load this profile, every other phone plugged into your android will sound plain broken
-potential for improvement: though I've profiled these phones with my own ears using my patent-pending "human spectrum analyzer(tm)", I plan to ship a few pairs of these to Rin Choi, famous headphone reviewer and critic, to measure using real equipment. If and when he posts the results for these phones, I can tune them to the best new Olive-Welti sound tuning curve out there and they may sound even better than they do now