Quote: I mean picture. For me, both K601 and K702 look better than this limited version. With similar colors, K601 looks best to me.   I assume the sound is identical to K702.

http://www.miroc.co.jp/show-report/ibc_plasa2012/archives/1192   Here is another picture.   I am not particularly impressed...

Has anyone used O2 to drive K501? Will it have enough power? I am trying to find a budget amp for K501.

So basically you demand mhdt to turn in the schematics because you were tricked into buying havana . I think I understand the logic now. Well...good luck. Quote:  

Thanks! will try it. Quote:  

May I ask how to change the headband? I am really curious how to get the old one out. I am also considering replacing the ear pads and headband. Thanks. Quote:  

Agreed. I cannot see why a firm is obligated to disclose the schematic. You paid for the product, not the schematic. There is nothing wrong with MHDT.   Quote:  

  MHDT announced a balanced version of Havana. Just found this on their site.   http://dhost.info/mhdtlab/havana%20balanced.htm   $1145  

This is unbelievable. I used to love my pro750s. The firm just scares me away forever. So sorry for the OP.   +21

Thanks Mrarroyo and dongringo. I am now more certain that MAD ear+HD will be my next upgrade. All the praise about its synergy with grado is really tempting.... I tend to buy a new one, so I still need to save more money first. Then the next decision I have to make will be the choice among the...

Thanks very much for your input. Mapletree seems to be a nice choice. I will look into it. One concern for me is given the tube dac I use (havana), I don't know if the sound will become too laid-back when paired with ear+hd. Remember  some describe the sound of ear+HD as somewhat laidback too...

I don't have preference between the two. The one I have is rs1i. Sorry that I didn't not clearly differentiate the two cans (the title modified).    Any recommendations? Thanks in advance.   Quote:

I am looking for an amp to drive my three phones: rs1i, hd600 and k501. I used to use ra1 for rs1i and corda arietta for hd600 and k501. However, I am somewhat tired of switching amps when I want to change phones. So I am looking for an amp which can drive all of them well to replace my two...

  Quote: contact@halidedesign.com   It is in the webpage, but cannot be easily found.  http://www.halidedesign.com/bridge/

Thanks for your reply, dura. This is really odd. It appears tubes need some rest before they work well again, put aside psychological factors. However, when havana is switched off, the tubes should get some time off. I can't think of a good explanation either. Anyway, l hope I won't feel the...