Yes, the 750's have diodes also. They are soldered to each driver.
post #811 of 2328
3/6/08 at 2:10am
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The first track was quite entertaining. I dont claim to be a soundstage expert and I dont have other cans at the moment to do a relative comparison at this point. Here's a picture that attempts to describe what I heard on the "virtual haircut" track and some perceived distances in feet (very approximate).
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I wish they would make some music recordings like this on a regular basis. Just a minute, I don't like bags over my head, man, don't do that again!! Why are you moving around so much? Just cut the hair. Hey, you splashed me, geez what kind of place is this, hey! don't hit my head. Yeah, snap this. . . . good get the, hey, watch out for my ears man. No blood. . Out of my ear with that electric razor. . . Oh man, I don't want it off my ears like that. . what a hack joint. What, you can't go outside for a walk. . just get this hair off my back. . . And don't put your lips next to my ear again. . why I auta . . oh he left.
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I am loving these more and more the more I listen to them. I actually enjoy the punch these are delivering. I haven't really heard a closed headphone at this price point that satisfies my lust for bass punch, midrange clearness, and nice highs (at least to me, some of you think it's sibilant and shrill) and all for under $200 AND they are closed. I think I may have found my fun rock can. The SR60's may have to go. Although my opinion may change in the next week or so. We'll see!
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I wish they would make some music recordings like this on a regular basis. Just a minute, I don't like bags over my head, man, don't do that again!! Why are you moving around so much? Just cut the hair. Hey, you splashed me, geez what kind of place is this, hey! don't hit my head. Yeah, snap this. . . . good get the, hey, watch out for my ears man. No blood. . Out of my ear with that electric razor. . . Oh man, I don't want it off my ears like that. . what a hack joint. What, you can't go outside for a walk. . just get this hair off my back. . . And don't put your lips next to my ear again. . why I auta . . oh he left.
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Whats up with this new measurement of the hfi780? it suddenly has a closed can dip signature unlike the graph we had with the ed9
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I noted on thing in a PM to another HeadFi-er....about the 780. On two different web sites (He&Bi and Careless Headphones) each has a frequency curve for the 780. He&Bi just put theirs up this week. If you check them out you will notice that He&Bi is done at a signal level of -40 dB while Careless Headphones is performed at essentially -20 dB. The results are two entirely different profiles.
These suggests to me if I am a listener that uses a very low volume such as 60-64 dB which is the background at my work and would not be useful for me I would hear a different headphone than having my volume set at my normal 75-80 dB values. The first would give me a dynamic range of only about 10-12 dB for my music while the later gives me as much as 30 dB given a standard outside attenuation of a closed phone of about 12 dB. The two frequency profiles suggests that the driver for the 780 (not knowing how burn-in they were when tested and how burn-in can effect the linear response) is not that linear over a range of volumes. At a lower volume you will find some sucked out mids vs. at the higher volume based on those profiles. There may be some other differences that can also be noted but I will let you check for those. This analysis may be a bit technical and different from anything you have seen before so take it as a thought experiment by me. |
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Steve, does your experience with the 780s suggest that they are very different cans depending on your playback level and that they only work well if you turn them up? is it possible that the differences in the graphs are less about volume than differences in measuring technique as graphs are not always the most reliable indicator of how a phone sounds.
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I think that it probably has more to do with stiff drivers that have yet to get flexible from burn-in and the level of the test signal. With a new headphone or as Careless noted 20 hours of burn-in a stronger signal over came the stiffness while at He&Bi I think the lower signal was effected by the stiff driver more as probably resulted in a different profile.
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