Hi all ,
Im thinking about buying some beyerdynamic DT 990 headphones. I will use them mainly with my OT/A4 and others synths. Im wondering if I should order the 990 pro version which has an impedance of 250 ohm, or take DT 990 edition 32 ohm ?
Im afraid that with 250 ohm the OT output will be too low and I do not want to add an extra headphone amp.
Does some of you have any experience with these headphones ??
DT770 250 ohms with AR and A4
Perfect for my ears!!
Thats good to know ! Thank you for your quick answer, I will go for the 250 ohm version. I cant wait to listen to my box with some good headphones 
I’ve been using DT770s without any issues for all my gear for a few years now. Terrific clarity for the $$$!
Also, BeyerDynamic makes different impedance versions of the DT770s so make sure you get the correct one.
Tnaks for your answer ! So I bought some DT990s 250 ohm last week-end. And yes there are just perfect with the OT/A4 ! The sound is largely loud enough even when playing mp3 with my old nokia phone. Moreover I appreciate that these headphones sound good even at low volume, so I tend to lower the volume compared to my previous headphone. And thats much safer for my ears.
Anyway they sound great !
Hi, i was wondering if you have use them with an iPad. Isn’t the 250 ohm version doing ok?. Not to low volume?. Thanks in advance for your replay.
i haven’t used them with an ipad specifically, but my 990s (250 ohm) are fine with my iphone.