Zombie_X
Headphoneus Supremus
The DT770's bass is lighter, but also tighter in ways. Also the highs are not as prominent as the DT880. This does help the mids come forward a bit. I would say as far as PRaT/speed that they are nearly the same. The DT880 maybe a bit faster but it'shard to tell.
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The one I heard had about 20 Hours on it at first and I gave it an additional 100 hours. I personally do not believe in burn-in, but did this so people would not complain. I can say that I heard no sound change at all.
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Yes the sensitivity determines how much power the headphone will receive from the amp as well as how easy they are to drive. The lower the sensitivity, the more power you will need to amp a headphone correctly. The K702 has a very low sensitivity as well as low impedance. This combo of sensitivity and impedance results in whether you will need more or less power. In the case of the K702 they will need a nice voltage swing as well as a high current amp to reach their potential. If you have a headphone with high sensitivity and a lower impedance that will equate to a very efficient load to drive. This is usually the case.
I don't know the sensitivity levels of the other DT models, but I know that they are lower than that of the HD600. The 105dB sensitivity of your DT770 Pro 80Ohm is at the same level of the K702, but the extra 20 or so Ohms that the DT770 has makes them easier to amp. The DT880 for example is low sensitivity (probably the same as the DT770 Pro 80Ohm), but has an impedance of 250Ohms or 600Ohms. The high impedance will make it so they are a bit easier to amp. Believe or not but even though the K702 has an impedance of 62Ohms they are still harder to amp than the 600Ohm DT880.
A least that's my take on the whole sensitivity bit, but maybe someone else can chime in to help me out. I believe I got that all right, but I know they are some exceptions out there.
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the dt770s' bass are lighter than the dt880s :-?. and the dt880s also have more treble. That means the mid on dt770 may be better and more forward mid. Can you tell me which one have better Prat/speed
The one I heard had about 20 Hours on it at first and I gave it an additional 100 hours. I personally do not believe in burn-in, but did this so people would not complain. I can say that I heard no sound change at all.
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Thanks Zombie_X for the great comparisons. I was able to only compare the DT770-Pro80 against the DT880-Pro250 (and heard very similar results).
It sounds like the Pro 80s were indeed the correct choice for me since a portable amp was an absolute requirement and it seems you are saying these are the only ones out of the 770 line that are relatively easy to drive.
Out of curiosity did you have a lot of hours on the Pro 80s? I have found that after a few hundred hours that the bass becomes more balanced (though still a little heavy).
Thanks again for the awesome and very useful article.
Yes the sensitivity determines how much power the headphone will receive from the amp as well as how easy they are to drive. The lower the sensitivity, the more power you will need to amp a headphone correctly. The K702 has a very low sensitivity as well as low impedance. This combo of sensitivity and impedance results in whether you will need more or less power. In the case of the K702 they will need a nice voltage swing as well as a high current amp to reach their potential. If you have a headphone with high sensitivity and a lower impedance that will equate to a very efficient load to drive. This is usually the case.
I don't know the sensitivity levels of the other DT models, but I know that they are lower than that of the HD600. The 105dB sensitivity of your DT770 Pro 80Ohm is at the same level of the K702, but the extra 20 or so Ohms that the DT770 has makes them easier to amp. The DT880 for example is low sensitivity (probably the same as the DT770 Pro 80Ohm), but has an impedance of 250Ohms or 600Ohms. The high impedance will make it so they are a bit easier to amp. Believe or not but even though the K702 has an impedance of 62Ohms they are still harder to amp than the 600Ohm DT880.
A least that's my take on the whole sensitivity bit, but maybe someone else can chime in to help me out. I believe I got that all right, but I know they are some exceptions out there.
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Quick question (and sorry if this is dumb), but sensitivity determines how easily a headphone is driven correct? And the higher the sensitivity, the more power a headphone needs to be properly driven? What are the sensitivity of the DT 770 models? I know that the 770 pro 80 has 105 dB (which is hard to drive right? Same as a Denon AH D2000 I think).