I am not sure if I am going to get another product from them. it sound great but reliability and customer service is not their top priority. This is just an absolute let down of their product. I did contact them when their website is still available, but there was no answer at all. I hope...

I didn't know that it is such an unreliable product. I assume that many of u guys here own it and most of them have dead c&c xo. I really like how it power my denon d2000. what would be other recommendation that will have the same quality?

My C&C XO just stop working a few weeks ago. the red bulb on the right is always on. The red light should turn on when the the input volume is way too high. I try everything but it always turn on with the red bulb on, which it will not produce any sound. I really miss the amp as my denon D2000...

Quote: Originally Posted by moonboy403 Do the drivers press against your ears? I found that to be a problem with the HD280 Pro. After prolonged use for anything over an hour, I would get sore ears. No the drivers do not touch my ear at all, but it is pretty close. Unless you have...

Quote: Originally Posted by intoart The HD380s have the same impedance and frequency range as the HD280s. They have somewhat larger/differently shaped pads and cost 50% more. That is all I know about the differences. Has anyone heard both? Is there a definite difference in SQ? I ask...

Compare to shure SE530 the HD380 has much clearer sound. Everything from the high is more crisp, vocal is more detail. What I really like about HD380 is how warm it sound, from the high to low it bend very nicely. The bass is great on this headphone it is tight and punchy.

I looking into other like Beyerdynamic, but the HD380 pro made me want to stick to Sennheiser. The only thing I don't like about HD380 is the look. I am also look for Audio-tehnica also, the only problem is most store here do not carry all these higher end headphone. I know that guitar center do...

I just tried my friend HD380 pro and it blows me away. I use my C&C XO portable amp to power it up and I never knew my portable amp is pretty good. I usually use my amp for shure SE530 and it does not make that much different, but when I plug HD380 to it is just another world of sound...

BTW where can I get hold of Denon D2000? I would like to try it first before commit to buy one. I know magnolia do carry sennheiser but I am not sure where I can get Denon D2000.

at my local Guitar center in Pasadena they were having a deal for HD350 Pro for $149. I will try HD650 and Denon D2000 before making my decision which one to get. With my portable amp the HD 350 sound great.

Thanks for the explanation. do open air headphone has less insulation compare to close air?

Thanks for all the input guys. So HD600 and HD650 are open air headphone, which mean that they are place on the ears instead of over the ears. I own audio-technica which is open air phone and it is pretty uncomfortable for long ware as it put quite a lot of pressure on my ear and my glasses...

Quote: Originally Posted by AzN1337c0d3r I've never heard the HD350Pro but from what I've read, it's supposed to be a monitoring headphone. Which to me indicates boosted treble, slightly recessed midrange, and average bass. HD650 has more/better bass than the HD600. I'm pretty sure...

Quote: Originally Posted by pp312 "My ears never get enough of bass" is a slightly worrying statement in terms of high-end headphones, where accuracy is the supposed goal. I suggest you look at something a lot cheaper--perhaps something closed. Not that I will never get enough of...

Thanks for letting me know