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Headphoneus Supremus
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These are the issues Vinnie from Red Wine Audio has identified with the 4G/5G Classic that point to a very poor stock line-out:
Even if you use the very best iPod cable with your stock iPod, you are still not avoiding the serious degradation of sound quality that occurs after the internal DAC. This degradation from the cumulative effects of the following stock components that are directly in the line-out signal path and that were NOT optimized for audiophile use:
* The low quality stock SMT coupling caps after the internal Wolfson (before the stock opamp)
* Opamp output stage
* The low quality stock SMT coupling caps after the opamp output stage
* The minuscule circuit board traces that carries the analog line-out signal
* SMD resistors and inductors directly in the signal path
* The signal path inside the stock iPod dock, which contains: the dock connector plug, a very cheap ribbon cable, more minuscule pcb traces, SMD resistors, and finally the line out jack.
Products > iMod - Red Wine Audio
ALO also has an extensive FAQ on the iMod :
ALO Audio » iMod FAQ
End of the day, I can understand why someone might be willing to invest in the iMod, but a *stock* 4-5.5G iPod from the line-out vs the line-out on the 6G Classic is another matter, and I'm not going to buy a 3 year old DAP simply to be able to answer that question. Vinnie clearly has to do a lot of work to remedy Apple's inherently poor stock design on the earlier iPods, but ALO will sell you one, ready to go, for 650USD (same price as the HiFiMan, if memory serves).
Its at this point that someone like Skylab or HeadphoneAddict will appear out of nowhere with a detailed comparison between the HiFiMan and iMod. Or not. Either way, I'm keeping my 160GB of lossless music.
Even if you use the very best iPod cable with your stock iPod, you are still not avoiding the serious degradation of sound quality that occurs after the internal DAC. This degradation from the cumulative effects of the following stock components that are directly in the line-out signal path and that were NOT optimized for audiophile use:
* The low quality stock SMT coupling caps after the internal Wolfson (before the stock opamp)
* Opamp output stage
* The low quality stock SMT coupling caps after the opamp output stage
* The minuscule circuit board traces that carries the analog line-out signal
* SMD resistors and inductors directly in the signal path
* The signal path inside the stock iPod dock, which contains: the dock connector plug, a very cheap ribbon cable, more minuscule pcb traces, SMD resistors, and finally the line out jack.
Products > iMod - Red Wine Audio
ALO also has an extensive FAQ on the iMod :
ALO Audio » iMod FAQ
End of the day, I can understand why someone might be willing to invest in the iMod, but a *stock* 4-5.5G iPod from the line-out vs the line-out on the 6G Classic is another matter, and I'm not going to buy a 3 year old DAP simply to be able to answer that question. Vinnie clearly has to do a lot of work to remedy Apple's inherently poor stock design on the earlier iPods, but ALO will sell you one, ready to go, for 650USD (same price as the HiFiMan, if memory serves).
Its at this point that someone like Skylab or HeadphoneAddict will appear out of nowhere with a detailed comparison between the HiFiMan and iMod. Or not. Either way, I'm keeping my 160GB of lossless music.