Hi,
I know it's not the industry standard to mix on phones, but sometimes we all do it, late at night
so no one can hear, wife and kids are sleeping, I'm adding a bit of guitar or keys, but seriously
I have a set of Sony MDR-7506 phones, a nice set of phones, but I want a set of flat response
phones, not too expensive, about the same price as my phones.
I don't think my phones give a true response, so therefore I want another set that will help me
get a more accurate sound, yes I know there are the pro's who say NEVER MIX ON PHONES !!!
I'm just looking for someone who maybe thinks outside the box a little, and can point me in the 
right direction.

Thanks

ATH M50s.  Amazing.  Industry standards.

If I had had a little extra dough I would have gone for the Audio Technica ATH M50s that yorolpal mentioned. However I went with what seems to be considered the next best thing in a slightly lower price range. Sennheiser HD 280 Pro's. They are quite nice and around a hundred bucks. The M50s were an extra $80 up here.

And what's wrong with mixing with headphones on? I do finite stuff in the headphones then sit back and listen to the results in the monitors.

I don't think you are honestly going to find a set of headphones that accurately/flatly can give you what would be considered a good baseline for reference...

Its the nature of our ears that makes this improbable...

That being said, I also don't think the idea of "taboo" is accurate either, I've heard great mixes done on headphones and I always check my mixes on several different kinds...

So where I would go is what headphone can allow you to spend hours on a sonic stage and not fatigue your ability to hear?

My vote would go to the Grado RS-1's...

M50's are fine , get replacement pads because if you plan on using them alot they will wear out. You can find them for about $18.00 pr.

Still I'd suggest using monitors & keep headphones for checking & testing your mixes.

I have the ATH-M40s phones...not quite as good 
as 50's....but not bad for the money...

I, also, couldn't quite reach the 50's either...but I will get a pair...
I haven't heard a bad word about them, and they're half the
price of most phones...about $159 at most places..and
usually on sale somewhere...

I can do a fairly decent mix in my 40's....not great..
not bad either...and, like beep said...I listen to 
the mix on multiple sources after that...and adjust
accordingly...

Cheers!

Beepster


And what's wrong with mixing with headphones on? I do finite stuff in the headphones then sit back and listen to the results in the monitors.

         Beepster
         I do the same, but you do get the purists (that is a real word right ?) that say you should never
         mix with phones, hey ! sometimes you have no choice, so you have to.
         I just think my phones, and they are good phones, don't give me an accurate mix, they are a little
         bass heavy. 

@jwh... Purist is indeed a word and to me it's a dirty word. Whatever gets results is my philosophy. I really do get far better mixes going back and forth between the headphones and the monitors and then trying it out on other systems like my home stereos and low end computer speakers. Then I'd take it out to various bars and clubs where I knew the staff and they'd let me listen to it on their systems. Or at friends houses or in their cars. Really it's the only way to do things without spending a ton of money at a mastering house who may not even get the results you want. Anyway... greetings from Canada. :-)

I use M50's all the time and then check against my NS10's and JBL LSR w/sub system.  For the most part, they translate very well.