I agree. I bought the CX300 as well and the bass was terrible. SQ is great but I prefer more bass so I am really dissapointed with them.
The fake Creative EP-630's that I got off eBay had better bass than the CX300 (even SQ was pretty good).
Guys,
Received my parcel yesterday from Amazon for Sennheiser CX300. Opened the package and checked the IEM and I believe it is a genuine piece. However I find the packaging and build quality is not up to par when compared with my Sony MDR-E848 which I have been using for 6 years. Well, I am just doing simple comparison I paid RM100 for the Sony 6 years ago and the build quality is far more superb than CX300.
If I am not mistaken in Msia the CX300 sells for RM2++? I paid RM60 for it after conversion and man I am dissapointed with it. The looks on the cable does not justify the price I would say, especially when the cable are separated into two strands which makes it looks like FOC earphone. On the other hand the Sony's cable has reflective finish and has more tenderness than CX300. Am I alone in thinking the build quality sucks? Sorry for Sennheiser fans I am just being honest.
Ok, enough of finishing and build, lets move to SQ. Plugged into desktop (office pc as I was working, no additional amp or souncard) and listened to Madonna, Dean Martin. First impression was that it went into the ear canal and blocked outside noise. Played a few tracks and I would say the clarity on this CX300 is better than MDR-E848 although still not burn in yet. Soundstage is wider with clear separation of vocals and instruments, something that the Sony failed to do. Ah yes, it is fast and dynamic. Applause for that!!
A look at the package it says that "Bass Driven Sound" and I believe it means the bass is superb. Played a few trance songs from DJ Tiesto (which I still keep during my youngster days) and the bass does not impress me much, on par with E848. Apart from the bass has faster attack I can't find any better of it.
I am a home cinema fan and this is my second piece of earphone so I don't have much experience / knowledge on this. I do not know how good a RM2++ earphone should be but Sennheiser CX300 let me down by its build.
I am just sharing my own experience as I was very eager to purchase a Sennheiser since ages ago. I chose CX300 based on review on WHF and have not tested any dedicated audiophile earphone / headphone. My opinion might vary with other users.
Cheers