I know it sounds crazy! I just happen to walk in for a second time at this Mom and Pop headphone shop near my company and listened to these from a -"have a try rack" of in-ear headphones and was blown away! I happen to try each IEM straight down the line and was completely startled with these. Honestly, if I can recall, some of them ranged $500 dollars, or more! This guy only carries the most wanted headphones and IEM's in his store. That's why I went back!
Now, these weren't the cheapest, by far. I know cheap when I see it. For example there's a fine-line I draw; if the wires are any thinner then the Philips SHE3580 or the Soundmagic ES10 and the sound is not convincing? I won't buy it! Simple as that. But the Liberty 1 seemed to fit the bill; good wires (thicker than 3580 and ES10), housing contours to most, if not all different ear shape canals. And yes, you said it! Nice ear tips! Can you really say you get the IEM's for free? Who knows!
Again, comparing to all the IEM's in this store -the sound on these just blew me away! And that converter switch just hyped it even more!
Do you get all the size for the tips? Have you compared IV-1 to IV-4?