Happy Holidays,
I have tried everything I could to make the HD650 work for me, including the Valhalla 2; Unfortunately, it didn't help. For anyone new reading this thread, don't try to buy an amp to suite headphones that doesn't work for you. If it doesn't sound good with say, a Magni 2. It is very likely it never will IMO.
Besides the issue I had with the frequency, the shape and/or padding of the HD650 is not for me. Even when it was loose enough to fall off my head, it would still cause some discomfort after long use. I am a bit stubborn at times, especially when testing the number 1 ranked head-fi headphones. I would have saved time and money if I would have listened to monsterzero.
I have just ordered the Nighthawk and will be returning the HD650. I still have an option to return any of my equipment, though the time for the Asgard 2 is running out. With that said, my questions are:
Which amp do you guys think will be better for the Nighthawk or 400i, depending on which one I keep?
It seems the Magni2 Uber would give more power to both those headphones than the Asgard2 at the listed ohms. Is that even relevant?
Please consider the fact that I live in Houston, and it does get very hot. Price is also a consideration with the return shipping and shipping paid for the amp, it is only a $70.00 difference between the two amps.
Above all, enjoyment and sound quality is first priority.
-Thanks again for all the help.