[Pm@c]

I have DT770 Pro 80 ohms right now, but they are like 4 years old now, getting to the end of their lifetime, old and rattling (ive cleaned them out, I think the drivers are dieing). 
 
Anyways, I plug them into my PC, through an Asus Xonar Essence STX audio card, which has the option to handle impedences of like 500 ohms (theres 3 different settings, 0-60 ohms, 60-320 ohms, and 320+ ohms). Depending on what setting you use, it pushes more or less power through them, hence I dont need an amp.
 
Im getting a new pair of them (since ive always loved their sound), and I was wondering, in my situation, would it be wiser to stick with 80 ohms, or maybe go with some 250 ohms?

 

[peppe]

 
The 250's are said to make the 80's issues with highs worse/ more noticeable.   Usually only the 80 is recommended in the pro line.

 

[Pm@c]

Speaking of which, how come I cant find the 80 ohms on ebay anymore?
 
Cant find them anywhere, it seems the only things that exist now are the 250 ohms.

Aside from Germany and Spain.

 

[Pm@c]

Is $223 CAD shipping included a decent price for the 80 ohms? Literally the only place I can find them from is some German Rock Shop on ebay.

 

[Mr Joboto]

Yeah, the 80 ohm version is typically the recommended headphone in the 770 Pro lineup, stick with it