QUOTE(ben3003 @ Jun 28 2013, 08:37 AM)
ok, i saw Heavyarm are still selling them tho.. with the DSS can i actually use the mic on the headphones? or just for the audio out?
No, the DSS doesn't have an input for mic in. Only the Creative Recon3D and Astro Mixamps have that.
I use a bluetooth clip-on earpiece for chat though, since you can output voice audio to headphones or speakers.
It's a much better alternative IMO because then I don't need to meddle with a long mic.
QUOTE(ongweiping @ Jun 28 2013, 11:20 AM)
Aiks, seems like im alone here, maybe i will try that myself, will be quite an expensive lesson if the headphone is not good. But i think my ear not that sensitive to differentiate those bad from good, plus im using PC330 currently, hopefully the improvement is significant enough to justify the price different. Ordered one for myself.
Thanks.
QUOTE(ongweiping @ Jun 20 2013, 08:36 AM)
I was interest in Sennheiser PC350 Special Edition currently. Currently using PC330 which is can feel uncomfortable in short run. The head phone just hugging my ear/head so tightly. Would like to know any opinion here, any owner of PC350?
Seems like most prefer headphone without mic and prefer to get separate mic? Was seeing somewhere on Beyerdynamic MMX300 as well... maybe a little over budget, is the thing really that good?

Sweat. Appreciate everyone's opinion. Thanks!

PS: Was using PC330 and Asus Xonar DX currently, and DX dont have headphone amp... may consider upgrade to Asus Essence STX. The amp really do much difference on headphone?
Sorry, didn't actually saw your post at the top of this page.
All Sennheiser headphones/headsets has a sort of a clamping pressure, kinda like their signature. With that said, different Senn cans has a different clamping pressure.
The PC350 doesn't clamp as tight as the PC330, but I always found the pleather earpads to be uncomfortable on them.
The PC350 has a different sound signature all together in comparison to the PC330. It extends quite well on the mid-bass side, without rolling off into the low-mids. Mids though, given this is a closed headset doesn't sound as forward as I expected it to be. It felt airy and the highs can be a little fatiguing at the same time.
Personally, I never liked the PC350.
As for the amp, it really really depends on the situation. The DX has no headphone amp, but neither the PC330 or PC350 needs an amp to drive them. But the DX's output line is at a stupid high 100ohms output impedence, way too high for the either headsets. Rule of thumb is that output impedence should be 1/8th of a headphone/headset's impedence, although many other exceptions may apply.
For this case, the PC330/350 will probably have some dampening or bass distortion at very high volumes with the DX.
Upgrading to a STX will improve your sound quality, but not by much because the PC330/350 are limited to what they are. They're low-impedance, easy to drive cans with only marginal benefits in amping.