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Author Topic: Classic Line-Out problem  (Read 5330 times)

Offline bachankas

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Classic Line-Out problem
« on: May 05, 2014, 02:55:10 PM »
Hi,

I have iPod Classic 160 GB (thin). After installing RB everything works fine, but Line-Out doesn't work, after plugging in FiiO E1 iPod doesn't play. Tried few headphones, no effect. Charging and USB connecting with computer works fine.

I uninstalled RB, on original software Line-Out works, FiiO plays with everything.

My friend's iPod Classic on official firmware also plays fine, but he doesn't want to install RB, so I can't check how's the case with his player.

Checked "Line Out" option in Settings, no matter if it's on or off, my iPod doesn't play from LO.

Anyone got idea how can I make it work?
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Offline saratoga

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Re: Classic Line-Out problem
« Reply #1 on: May 05, 2014, 03:01:31 PM »
That's an amplifers powered by the iPod. Since there is no support for the apple accessory protocol on the 6g I kind of doubt the amp will be powered. 
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Offline bachankas

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Re: Classic Line-Out problem
« Reply #2 on: May 05, 2014, 03:19:23 PM »
So I won't be able to plug any headphone amp, right?

I like my iPod with modded HTX7 now and it's great, but possibility of more powerful output signal would give better synergy with better headphones... :)
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Offline saratoga

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Re: Classic Line-Out problem
« Reply #3 on: May 05, 2014, 03:32:06 PM »
Quote from: bachankas on May 05, 2014, 03:19:23 PM
So I won't be able to plug any headphone amp, right?

I like my iPod with modded HTX7 now and it's great, but possibility of more powerful output signal would give better synergy with better headphones... :)

That amp is only a few dB more powerful than the stock headphone out on the classic, and you're not using particularly high impedance headphones.  Do you really care about a few dB more volume?  I would think you're probably listening quite far below max anyway. 
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Offline bachankas

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Re: Classic Line-Out problem
« Reply #4 on: May 05, 2014, 03:42:59 PM »
Quote from: saratoga on May 05, 2014, 03:32:06 PM
Quote from: bachankas on May 05, 2014, 03:19:23 PM
So I won't be able to plug any headphone amp, right?

I like my iPod with modded HTX7 now and it's great, but possibility of more powerful output signal would give better synergy with better headphones... :)

That amp is only a few dB more powerful than the stock headphone out on the classic, and you're not using particularly high impedance headphones.  Do you really care about a few dB more volume?  I would think you're probably listening quite far below max anyway.

I rather think about some better headphone amp like iBasso T5 and some LOD cable for some more requiring headphones, FiiO E1 is not mine, just wanted to test it. Classic has high output impedance and large, nice headphones can sound bad with it.

It's just plan for future, I'm not changing anything right now.
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Offline saratoga

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Re: Classic Line-Out problem
« Reply #5 on: May 05, 2014, 03:47:55 PM »
The classic has a quite low output impedance.  You are probably thinking of the iPod video.
« Last Edit: May 05, 2014, 03:50:06 PM by saratoga »
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Offline bachankas

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Re: Classic Line-Out problem
« Reply #6 on: May 05, 2014, 04:15:57 PM »
I wrote somewhere that Classic has higher ouput impedance and can't drive heapdhones as well as Video, maybe wrong information.
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Offline saratoga

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Re: Classic Line-Out problem
« Reply #7 on: May 05, 2014, 04:43:30 PM »
Quote from: bachankas on May 05, 2014, 04:15:57 PM
I wrote somewhere that Classic has higher ouput impedance and can't drive heapdhones as well as Video, maybe wrong information.

Yes, thats backwards.  It the video that has the relatively poor headphone output.
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Offline bachankas

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Re: Classic Line-Out problem
« Reply #8 on: May 05, 2014, 06:08:27 PM »
I found a topic on head-fi saying "iPod Classic 7G can only be used with portable amp/DAC if you do not Rockbox. If you Rockbox, you can use portable amp but not portable DAC."

Maybe I'll check with some amps other than E1.
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Offline saratoga

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Re: Classic Line-Out problem
« Reply #9 on: May 05, 2014, 06:42:19 PM »
Quote from: bachankas on May 05, 2014, 06:08:27 PM
I found a topic on head-fi saying "iPod Classic 7G can only be used with portable amp/DAC if you do not Rockbox. If you Rockbox, you can use portable amp but not portable DAC."

Yes thats correct.  The digital output on Apple devices is encrypted and cannot be used without their private keys.

Quote from: bachankas on May 05, 2014, 06:08:27 PM
Maybe I'll check with some amps other than E1.

From what you've said, this is a waste of time, as you will have no benefit from one.
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Offline bachankas

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Re: Classic Line-Out problem
« Reply #10 on: May 06, 2014, 02:44:46 AM »
Like I wrote, now I'm just checking if Line Out will work. I'm not buying any amp, I would rather change headphones.

I siÄ™ that people use some amps with LOD cables,  so it's not impossible.
« Last Edit: May 06, 2014, 12:31:17 PM by bachankas »
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