Got my monk plus. I think they are well worth $5, but nothing more. Crappy thin sound if you dont press them against your ears to fake a seal. Kinda detailed, but absolutely no bass presence (and i'm no basshead). Tried every combination of foams w/ and w/o ear hooks. Good to have as spare pieces, but there is way too much hype around this. Also, build quality is horrible. Mine cracked open out of a sudden, had to clip it back on.
If it costed about $20 i'd be very pissed.
cheers
well~doesn't matter if they are 5usd or 20usd
if u got them within 7 days, u can just email me about this
and we will take care of u, if they are indeed broken or anything.
as for the "cracked open" situation, plz understand it is a long and harsh way across the world from China to wherever u currently are.
but if they sound normal, balanced in both Channel, u can get some kind of super glue to easily to them back together, that would be ur easiest fix, but if they indeed sound wrong (like not balanced from both channels , then they are damaged during shipping for sure)
even they are in the perfect working condition, like any earphone, some just do not fit ur ears.
it happens to everybody~in that case, u can give them away to anybody who can enjoy them.
if u are a super basshead, u should not even be using earbuds, they will not provide u the kind of bass that u r talking about.
u should instead buy iems , as iems will provide u better seal therefore better bass.
anybody who are trying to tell u the earbuds can get u deeper and more bass than IEMs are out of their minds.
earbuds are more like the open cans, and iems are more like the close ones.
earbuds supposed to be more relaxed sounding with a more realistic sound stage along with other stuff, but the bass impact is not part of the bargain.
i hope this can be helpful to ur questions
Cheers
Lee
p.s. I have seen a lot of our fans over-hyping them, I had always try to tell ppl , do not say that the monk is better than stuff like hd600....it will just make our clan look bad in general....the monk plus is great as a earbud if u are looking for a earbud like experience, but from what u r posting, I will suggest that u stick with iems and closed cans if u wanna really really tight and deep bass.
I just don't post that often. I even wrote you some PMs, hehe. Speaking of Monk+, they're amazing. I want to thank you again personally. I don't remember the last time I used my Sennheiser IEMs since I bought Monk+, and that is so awesome! 
