They are really different headphones.  For me, dt880 provides more details and better bass, though 600 gives more bass

K501 is not suitable for u. You may also try Beyer custom one. I don't know m50 bass is too much for u or not, but m50 feels very solid and comfortable Sent from my Lumia 900 using Board Express

M50 is a great choice Feels solid and reliable Sent from my Lumia 900 using Board Express

880 and q701 may not have enough bass for u. Do you have any budget for a full size amp? Sent from my Lumia 900 using Board Express

Thanks~   I will contact them whether they can make it RCA analog input. Otherwise, I may need a 3.5toRCA line

It seems to be quite a great choice~~   Thanks for your info~   A little weird: The analog input is a 3.5mm. Is the combo used for portable gear? Why not a RCA analog input?

Hi,   I have $300 budget for the DAC/AMP pairing with Q701. The gear should also has a RCA input to work as an amp alone. Used are acceptable.   M-stage? Compass? These are two gears I found.    It seems M-stage is getting quite a fame. How does Compass(old version, cannot afford the...

You only need an iPod for listening music. But for hifi, we have to pay a lot for external dac,amp. Actually, they are developing much slower than you expect. Sent from my Lumia 900 using Board Express

Thx a lot.   I got a spl auditor eventually, working great with my 600

totally a collection of legends~

Since you dont like C3, there is no point keeping it. It can be quite annoyed with button problems   amp? i dont know C3 has a lineout or not. If not, dont buy amp for C3   PS: I dont like C4 either. It looks great, but feels cheap to me

I really dont think it a great idea   if you wanna upgrade, you need more budget

You may try Ipod classic+ rockbox, maybe also get a portable amp with your extra money

just hesitating on which to take, and waiting for a better deal and my salary for this month

yeah, I check that a lot these days   planning to buy a used one, more economical