Just bought a MDREX10LP and i was not surprised i too noticed the same problem :(
The left hand side was way lower in volume compared to the right side..
I tried a ton of things and nothing made any difference.
I put in my older MDREX35's and i noticed even output.
So yeah there is something wrong with these MDREX10LP's
Just for the hell of it i grabbed some of these today at Target for $12.99 can (+ 0.40 EHF fee) in Kelowna BC, Canada
I almost grabbed these same ones on NCIX last week for $9.99 can on sale,
Before i got home i stopped by wallmart and they had the same ones for the same price too.
Not sure where the OP bought his..
Anyway best i could tell the sound quality *would have been "good enough" *if they worked right
My current MDREX35's came from Wallmart in Canada few years back for $24.99
and those too also had that same problem with volume being louder in one side compared to the other.
In case people don't notice the model number is stamped into the plastic on the cord splitter-detangler thingy.
And i noticed that instead of 6 vent holes for the speakers there is one small hidden one underneath on the newer MDREX10LP's (i bought black ones)
I'm guessing that might not be as efficient maybe ? but i bet it would keep the speaker vent holes cleaner easier.
Also i noticed the two super small pin holes in the speaker membrane is gone now on newer models.
Another newer nice touch to the new earbuds is on the left side there is a little round bump in the plastic
that my older earbuds did not have that make it easier to tell by touch alone which is left and which is right..
So the shape is different but the ear pieces seem to be the same size but they are more snug fitting now i think.
And i mean how the plastic tips are snug fitting to the headphone not how well they fit in your ear.
The 9mm neo magnets work great but beware i bought some Rosswill earbuds recently for 10 bucks at Newegg (had tips that were impossible to get on)
and they were laughably bad.. so bad i knew i would never ever use them in my life.. they sound that bad lol
I bought some Sony earbuds several years ago when Neo magnets were still pretty new and London drugs charged me $96 after tax for my earbuds back then.
i loved them to death and sadly left them outside work on a break with my mp3 player that quickly vanished :(
So i have no idea if i can return the MDREX10LP's or if there is any point.. the problem is severe i think too.
My last pair almost the same pretty much worked itself out eventually and now they sound balanced 2 years later
but the one i got now are too badly messed up to bother with that crap i think and i doubt i will buy any more Sony earbuds, this crap is getting old :(
I have followed some talk on the forum about the competing cheapo Philips neo magnet earbuds about the same price all over
and i was tempted to grab those today too but didn't.. so my advice to peopel is beware these MDREX10LP's and maybe consider the Philips one instead
i hear good things about them for a 10 buck earbud :)
sorry about the long rant people ;)
Edited by Spoetnik - 1/6/14 at 8:13pm