iPod Nano Sound Quality - Your Feedback Please?

I'll be comparing it to a mini. That's the only iPod that I have available for comparison.
Art

We'll find out.
Art

I considered whether this would be premature, but well, I'm in effect asking people to NOT discuss the sound quality of the nano, and I think I'll at best have a brief window of time on this.

Yes I do think a lot of Audiogoners took one look at the nano, as I did, and had to have one right away. But I could be wrong.

Art

OK, why don't we open up this thread to discussion of sound quality. I am not getting the flood of emails I expected. Let's just discuss it here on the 'gon.

I'm going to with-hold my comments until tomorrow, because I want to hear it carefully some more tonight after break-in, and also I want to compare it head to head with my mini. (I'm letting it play all day today without listening to it, just to make sure it's broken in, in case that makes a difference.)

If I have time I'll also visit the Apple store and compare mine to one in the store (if they have one!) to make sure that mine is typical.

Art

Good comments, thanks for bringing these up.

1. I am using mostly 128 AAC, with some 192. So my comments will not be definititive with respect to use of lossless, although it probably provides strong hints.

2. The nano is replacing the mini. Steve Jobs is replacing his most popular product, in the middle of it's prime, with a radically different product. So it is interesting from this point of view. And I think the mini owner is a good candidate to transition to the nano, and prospective purchasers of the mini will now be funneled to the nano instead.

3. The reason I'm comparing mini to nano is that this is the migration that I'm considering. If I had the good fortune to work for an audio journal then probably I could discuss with the editor which comparison to do, and then even get loaners from Apple.

4. I don't think there is any single comparison that would serve all purposes.

The comparison itself is taking longer than I hoped and I'm not willing to use "vacation" time from work to do it, so I'll post more information over the weekend. I would really like to hear from others as well if any of you do any testing.

Briefly what I've found so far - testing only via my Sony sports headphones and also via Shure e3c, is that these two units sound quite different. This is not only the opposite of what I expected, but, well, prior to using the nano I never even considered that they MIGHT sound different. I took it as a given that they would sound the same.

The nano seems to sound more solid - more saturated - with more color, more dynamics, more vivid, more authoritative and far deeper bass. However on some recordings the nano sounds irritating, kind of strained or shrill. The mini sounds consistently far more relaxed, a little bit grainy, and while not as extended top and bottom, it is quite well balanced. (Is the grain what you call "noise"?)

I don't have a clear preference yet, in terms of sonics, but I am likening the difference between nano and mini as kind of like the difference between Thiel speakers and Spendors. When everything is perfect in a system - great gear, perfectly matched and set up - with an excellent recording - I find Thiels pretty spectacular, really hard to beat. But if something is off - particularly if it's not a great recording, or the amp is less than stellar for example - Thiels can be unpleasant. Spendors make a wider range of music enjoyable (to my experience) whereas Thiel increases the intensity of the pleasure of the best recordings.

That is what I've found so far, very tentatively.

What I want to do next is hook both of these units to my main stereo. I don't have line out so I'll be amplifying the output stage of each iPod, which is probably just as well, since that's part of what I want to test.

I am very curious as to others experiences. It could be, for example, that my testing reflects unit to unit variation. I have a very early model nano, and first generation mini, by the way.

Art

I would speculate that something is dramatically different physically in the nano from the mini that makes a clear sonic difference. It could be D to A conversion, amplification, or characterist of power supply, or all three.

Also I should not rule out manufacturing variation as a source of the differences that I am hearing. These are mass produced, and they probably have pre-determined error tolerances that may or may not permit audible variations within the "acceptable" tolerance range.

Art

ps: I wonder if the 2nd generation mini sounds different than my 1st gen. Hmmmm. Anyway, I will be continuing my focus in testing on migration from first gen mini to nano, 128 and 192 compression.

Well the mini, and I think the other docks too, had a line out that bypassed the output stage of the iPod. So people generally try to use the dock with previous generation iPods in order to access that direct line out.

I read some place that the nano dock has a line out whose volume is mitigated by the volume control on the nano. This probably means that the line out on the nano dock does not bypass the output stage of the nano, but I cannot be sure.

My personal goal is to test the sound of the units including the output stage, so I'll hook them up to my stereo out of the headphone output. But if I were hooking the unit up to a stereo for longer term listening, I sure would like to bypass the iPod output stage.

Art