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Go Back   Head-Fi: Covering Headphones, Earphones and Portable Audio > Misc.-Category Forums > DIY (Do-It-Yourself) Discussions

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Old 12-28-2007, 12:19 PM   #491 (permalink)
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You should remove all the unused pins in the dock to begin with, it'll be easier to work worth and supposedly reduce some in interference. Anyway, multiple strand wires can pe "shrunk" by exposing lets say 0.1" of strands then cuttings about half(or whatever) of them down to lats say only 0.03" bare so you're left with only 5 or 6 strands, then tin the wire so it'll ensure good solid contact to all the strands. use little bits of heat shrink that you put on te wire before to ensure the wires don't touch each other when they're so close inside the dock connector..

pin 1 as mentioned is internally connected to pin 2, so I assume their use is interchangeable.

(Also note that some site count the pins from a different size, so if you were looking here for example, you'd be using pins 23, 78, 29/30. )
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Old 12-28-2007, 12:52 PM   #492 (permalink)
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I managed to get someone who had the iMod to lend it to me for some listening, but I could only find a few songs I know on his iPod. He was in a rush as well so I couldn't listen for long. My impression is that, the iMod has very very slightly deeper midrange and bass than mine, however it was quite an unfair comparison considering he probably has his music on lossless and mine on 192 kbps. Also, cause he was rushing off, I wasn't really in a right state of mind to do a calm comparison, I might be wrong because the difference I heard was so so so small. And i only clocked about 130 hours of burn in, when supposedly supposed to go for 200... I will definitely do a comparison again. But overall, my verdict is that iMod's reviews are mostly over-exaggerated.

He listened to my mod as well, his feedback is that the bass although not as powerful as the one from headphone out, it is more controlled and the clarity is better(which is expected because the headphone out is known not to have exceptional clarity). However, comparing hp out to dock line out, I would say, like most people do that the hp out on 4G iPod is already good as compared to those new gens, so the rather inaudible difference that I am hearing in terms of SQ might be explained by that probably.
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Old 12-28-2007, 01:56 PM   #493 (permalink)
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Originally Posted by ruZZ.il View Post
You should remove all the unused pins in the dock to begin with, it'll be easier to work worth and supposedly reduce some in interference. Anyway, multiple strand wires can pe "shrunk" by exposing lets say 0.1" of strands then cuttings about half(or whatever) of them down to lats say only 0.03" bare so you're left with only 5 or 6 strands, then tin the wire so it'll ensure good solid contact to all the strands. use little bits of heat shrink that you put on te wire before to ensure the wires don't touch each other when they're so close inside the dock connector..

pin 1 as mentioned is internally connected to pin 2, so I assume their use is interchangeable.

(Also note that some site count the pins from a different size, so if you were looking here for example, you'd be using pins 23, 78, 29/30. )
yes, are there any other site than ipodlinux to check dock_connector pins to use ?
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Old 12-28-2007, 02:53 PM   #494 (permalink)
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Apple iPod dock interface pinout @ pinouts.ru, Notice that these here are noted in the reverse order than the one at ipodlinux. I use the one at ipodlinux cause of the pic of the dock I got used to looking at.. but they're probably basically the same thing.
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Old 12-28-2007, 03:16 PM   #495 (permalink)
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CA: Your doing the right thing by tinning the wires first. I really don't see the benefit in using such big gauge wire. Its not like the ipod produces that much current...so its kind of an overkill, but there will be people who 'hear' the difference so I'm gonna stop before I make enemies !! But yes, you are on the right track. What I tend to do is put the wires on the side instead of directly on top of the small pins. This usually helps out quite a bit.
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Old 12-28-2007, 03:23 PM   #496 (permalink)
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Pins 1 and 2 are identical, so you can use either or both. I know I said to use pin 1 because it's "farther" from the audio pins, but looking at the dock connector, both are just beside the other, so it makes even less difference which one you choose.

KoKo:

I agree with you about the iMod reviews. I think people are exaggerating the improvement in sound quality, though it may very well be there. At the very least, it's an interesting concept, and I'm just glad I could do it for so cheap. I wonder if anyone will be going to the National meet and doing any comparos. Oh, what a controversy that would be.
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Old 12-28-2007, 03:25 PM   #497 (permalink)
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Originally Posted by KoKoKrunch View Post
I managed to get someone who had the iMod to lend it to me for some listening, but I could only find a few songs I know on his iPod. He was in a rush as well so I couldn't listen for long. My impression is that, the iMod has very very slightly deeper midrange and bass than mine, however it was quite an unfair comparison considering he probably has his music on lossless and mine on 192 kbps. Also, cause he was rushing off, I wasn't really in a right state of mind to do a calm comparison, I might be wrong because the difference I heard was so so so small. And i only clocked about 130 hours of burn in, when supposedly supposed to go for 200... I will definitely do a comparison again. But overall, my verdict is that iMod's reviews are mostly over-exaggerated.

He listened to my mod as well, his feedback is that the bass although not as powerful as the one from headphone out, it is more controlled and the clarity is better(which is expected because the headphone out is known not to have exceptional clarity). However, comparing hp out to dock line out, I would say, like most people do that the hp out on 4G iPod is already good as compared to those new gens, so the rather inaudible difference that I am hearing in terms of SQ might be explained by that probably.

KoKo, I was thinking...what size caps did you use again? If it was a smaller value then his iMods 47uF, then that may have been why you are hearing less bass in comparison. It may be that, or like you said it could be the way your files are encoded.
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Old 12-28-2007, 03:28 PM   #498 (permalink)
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Originally Posted by joneeboi View Post
I wonder if anyone will be going to the National meet and doing any comparos. Oh, what a controversy that would be.
Oh boy, you got that right!!
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Old 12-28-2007, 04:01 PM   #499 (permalink)
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Originally Posted by ruZZ.il View Post
Apple iPod dock interface pinout @ pinouts.ru, Notice that these here are noted in the reverse order than the one at ipodlinux. I use the one at ipodlinux cause of the pic of the dock I got used to looking at.. but they're probably basically the same thing.
thx for the URL...yes, i'm pretty sure now that my dock had the right pins...

Originally Posted by wgr73 View Post
CA: Your doing the right thing by tinning the wires first. I really don't see the benefit in using such big gauge wire. Its not like the ipod produces that much current...so its kind of an overkill, but there will be people who 'hear' the difference so I'm gonna stop before I make enemies !! But yes, you are on the right track. What I tend to do is put the wires on the side instead of directly on top of the small pins. This usually helps out quite a bit.
it's help alot than using directly from the big gauge wire to pins...

Originally Posted by wgr73 View Post
KoKo, I was thinking...what size caps did you use again? If it was a smaller value then his iMods 47uF, then that may have been why you are hearing less bass in comparison. It may be that, or like you said it could be the way your files are encoded.
i use the 22uF, so it's gonna be less bass to than RWA iMod ?

Originally Posted by wgr73 View Post
Oh boy, you got that right!!
x2...
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Now: AKG K501 + DIYmod Nano 1st GEN)
Next: S.O.U.L rev.M (?!), ipod shuffle 1stGEN
[WTB] looking for AKG K400, in good condition or new !
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me ? beginner headstage !!!

tested cans: Yuin (PK2, PK1), koss (KSC11, KSC75, Portapro), sennheiser (PMX60, PX100 v.1, PX100w, PX200, PMX100, PMX200, PXC250, PXC450, HD415, HD437, HD200, HD201, HD202, HD205, HD215, HD515, HD595, HD600, HD650), AKG (K24p, K26p, K27i, K44, K518dj, K240 studio, K501, K701), Grado (iGrado, SR60, SR80, RS-2, RS-1), Alessandro (MS1, MS2i, MSpro), Beyerdynamic (DJx-1, DT150, DT231 galactic, DT531, DT770pro (250ohm), DT770M, DT880, DT990pro), Pioneer (HDJ-1000), Denon (D5000), AudioTechnica (SJ3, SQ5, A500, AD700, AD1000, W1000, ESW9), Ultrasone (HFI450, DJ1 [classic], HFI580, ALO HFI780, HFI2000, PROline 750, ED9)

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Old 12-28-2007, 04:13 PM   #500 (permalink)
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Same as RWA, 47uf. RWA uses Cryogenic wires though, which again, shouldn't make much of a difference... zzz

i think it might be the file encoding and burn in time that's making the difference I hear.