I recently decided that I was going to purchase the Beyerdnamic DT990 Pro 250 ohms headphones. I also learned that I would need some equipment to power them.
Am I going to need just an Amp, or will I also need a DAC. I know a DAC is a Digital-Audio-Converter, but to be honest, I have no idea what it does, so if you could also explain that, it would be very helpful.
The DAC converts 1001001010000100101000010101010110101001000011 of digitally encoded music into an electronic waveform that then has to be amplified into a stronger signal that is capable of moving transducers like headphone drivers or speaker drivers, which in turn move air that makes the sound you hear. Practically any device that can play digital music has some kind of DAC. and without it the only way to listen to digital music is if you get unplugged from The Matrix first and you get so used to looking at 10010010101011 on the screen at the Nebuchadnezzar that you can tell blonde hair, red hair, C Minor, 40hz, guitar riff...
I already started to look into things and was recommended the Fiio E10K, but researching more, I learned that it's only good up to 100ohms? And since the cans I'm looking at are 250 ohms, thats a no-no since it wouldn't be able to power it to it's full extent? (Like I said, don't know much)
Its power output is actually rated to 150ohms. The problem is that the higher the impedance load, the lower the power output, the difference being that some amps can trail off more sharply even if they start out with a lot more at 32ohms.
That said, impedance isn't the only problem. If the sensitivity of the headphone is low, ie how much output in decibels you can get for 1mW (1W at 1M for speakers; and for every 3dB increase, you need to double the input power), then it won't matter if the impedance is 16ohms or 32ohms, you'll just need a lot more power.
I also heard about the Schiit Modi+Magni stack, but that's just too expensive for me.
If you'll use it on a PC there are a bunch of soundcards for less money that have enough power, and the high impedance isn't a problem for their output impedance specs.
There's the Sound Blaster X AE-5 too that has as much power as the old Magni2.
I need suggestions of an Amp and DAC (separate or all in one, like the E10K) for $150...
If you want to fully power that headphone, that's kind of a tall order. Sensitivity might be relatively high, but it isn't exactly
that high, and the impedance affects power delivery on amp circuits that have to run off USB or a battery. If you can get find one on Amazon or eBay, there's the Pangea HP101. I use it on the HD600 and it gets really loud before there is any audible noise, but it has some USB driver problems on Windows. I use my Android though and it has zero issues with that.
...but can be up to $200, that would be able to power these cans to their fullest.
Ummm....Schiit Modi2 and Magni3.
I'm not looking for things that I can use for the future, as these headphones will probably be the highest end that I go.
DAC :
https://www.ebay.com/itm/SA9023-SE1...811325&hash=item28563db66d:g:yxUAAOSwb9Bavy3U
Amp :
https://www.ebay.com/itm/Little-Dot...926859?hash=item3d4bee810b:g:r0EAAOSw-wJZ5cJP