saw so much prob with the 2.1 so think i very heng.
grab a set from SLS about 1mth+ back. no imbalance prob.
But to make sure i don't have this problem, i never touch the volume know, i use windows volume control, my kb have media keys.
also realise no need to off volume before switching main power plug off. there is no poping sound.
this is my 2nd set, my 1st set lasted 4yrs before amp spoil (now i used the 2 old sats as rear for 4.1)
i really like the sound and the bass blew me away, i need it for movie and games. not saying that it is not good for music, in fact for music, i felt that promedia beat aego m. aego m really need to b pretty loud to perform while promedia sounds good even at low volume.
my 0.000005cents

since u use it for music, u should go for Aego M ?
Can consider Aego M and Swans M50W ard $300. More for clarity like for music. Promedia have to audition on your own. See if the signature suits you. The bass maybe good for games and movies for low volume. Try it out,esp when at louder volume.
I've hear plenty of raving reviews about the PM2.1 since the early 2000s.
Now, I'm intending to change from my Creative Inspire S2 that I've had for 4 years. I'm mainly (80%) into music (mostly indie, some pop, alternative; no heavy metal types) and the occasional (20%) movie/TV show. What I read about the PM2.1 is that its strength is the bass.
I'm not one of those who love plenty of bass. I prefer the "mmmmmm" kind of bass, than the "thump thump thump" kind of bass. Meaning it has to go low, but not be overwhelmingly like a loose cannon when it comes to pop (such as Katy Perry songs). It needs to be solid but not overpowering.
1. Is the PM2.1 suitable for me? I haven't found a Challenger outlet that has it on display, so I haven't auditioned it personally.
2. Also, I will be connecting it to my Audinst HUD-MX1. Can I do so via RCA cables? i.e. Macbook Pro -> USB -> Audinst HUD-MX1 -> RCA -> PM2.1
3. Is the speaker imbalance thing a common occurence? Or is it just a small sample size I'm seeing here. I need a peace of mind to use it for at least 5 years.
- new one the speakers cables are hardwired into the speakers, old one uses 3.5mm plug into the speakers.. might be problem if wanna change cables, i changed mine to better quality cables from stock..
I got the S2 too and nearly bought the ProMedia
"luckily" i saw the real thing and the design and size really unacceptable to me
the sound quality s2 is quite good already and has much nicer and smaller satellites
Is the promedia 2.1 able to link up with consoles for the sound as I'm using my monitor more often for gaming nowadays. Seems hard to find such a speaker which does so.
can try toslink -> 3.5mm cable from console -> promedia 2.1. might works