Originally Posted by ishtob
did I do something wrong if I cant use my headphone without an amp?
the bass becomes overwhelming and the highs are barely audible
What headphones are you using? I can't imagine wanting to listen to your iPod without an amp, since it would be so very loud. Wolfson says we can plug 16ohm headphones straight into the DAC. I wonder if that would be excessively loud. Though the Wolfsons allow you to connect your headphones straight, you normally have some sort of amp after the DAC anyway. How's it sound with the amp?
bobby001:
Yes, that's the iPod video. The signal in the original dock and the one that we are modding are the same one except that they travel through different paths. Personally I would remove the caps right after the DAC, but there are different ways of doing the diyMod.
1) Remove only the caps after the DAC.
2) Remove the inductors right before the dock.
3) Combine 1) and 2).
I personally did 3) because I wanted pads that were easier to solder to. At the very least, the diyModder should perform option 1) because that results in less signal being leaked all the way up to the dock. If you do just 2), then some of the electrons will travel all the way up to the dock, stealing some of the signal. In this case, jERiCOh is getting both the modded and unmodded signals at his line out (unless he did some more mods we don't know about), so I would only imagine that being bad for the sound. I don't know how that might affect it except for some sort of time deviation between the signals because of different paths, but I don't know if the time discrepancy is noticeable. Essentially, you don't want to do it that way. Maybe we're just splitting quarks here (okay, maybe not), but why unnecessarily introduce problems? Thanks for pointing that out, bobby. I noticed it but didn't give it any thought.
I do want to point, however, the good job jERiCOh did in routing his wires. Notice how they travel around the Wolfson, around the click wheel and that chip on the bottom right. I didn't realize this until after closing up the iPod but we're splitting tenths of millimeters here, and
the wires can raise the front plate up, causing the click wheel to sink in. It gives the iPod user a bit of a different tactile experience, but I wouldn't recommend it. jERiCOh's is almost a perfect example of how to route the wires.
and i'm getting some pretty nice deetailed and yet warm sound, only problem now is I cant use my output jack without an amp.. I tried it, and all the treble were too soft to be audible
) : nothing is strange for you about this fact ?
)