Tried hard reset through pinhole, tried connecting to a PC , tried recharging. Nothing works

Have the same problem with Fiio X1, please help :cry:

Rest in peace, Chu Moy. Your legacy live on

You've auditioned them out? If you still cannot make up your mind, it's because they all have more or less similar frequency response. Just get one that is most comfortable to you.

Any word on the op amp section, James? what chip will it have? or still not final yet?

Much appreciated, thank you for the clarification, ClieOS

Speaking of ESS9018, why not use ESS9012 instead? it's more upscale than ESS9018 Mobile Version looking at the spec. It's on par with ESS9018 in stereo performance withouth the hassle of paralleling the DACs

ESS9018 with the amp section of an E12 connected would be ideal for me. I am not sure I am willing to use anything bigger than the enclosure of the E12. Think about it, 5" android phone with the thickness of an X5? it's just too much

That is what I am hoping as well. All my favorite amp like RA1 and O2 uses NJM4556A, that is my wish to James Fiio.

What chip do you guys think Fiio will use for the amp section for this X1? Looking at history, Fiio normally uses similar chip from their other product line, e.g. OPA1612+ dual LMH6643 in their Kunlun for their X5, and AD8397 from their E11 for their X3. If I have to guess, they probably are...

that would explain the lack of review and the lack of general enthusiasm from our community compared to those for the Tenore.

I'm looking to get a Carbo Singolo from Headfonia because I like the Tenore so much I am hoping to get a BA version of it, but the lack of review concerns me.

in that case, it is not the O2 that drives your speakers...what your speakers "see" is just the output of its internal amp..no matter what you put before the internal amp...unless you remove the internal amp, it will become unecessary for you to put O2 in the signal chain. in which case I dont...

jhao if you are careful with the volume , you should be okay.

jhao, you can do that, but there is no point in doing that and you also are running the risk of clipping the O 2 input stage and damaging your speakers

It should work, but you gonna need linear usb power supply to power the ODAC

Besides recharging the battery, the AC adaptor will allow you to accept true line out (2V) without fear of clipping the input stage. It is recommended to use AC adaptor  when you are going to use it with ODAC or any desktop source. I think the battery mode will only accept 1.5-1.7 V of input...

Oh yes, I would've done it but was not sure about the forum policy on linking to external site.

oh we are on CNN.com on a piece by Todd Leopold: How Beats Headphone Changed The Audio World

Why do I hate beats? Because Philips Fidelio line shows us what is achievable at much less price.

1. Love is The Reason by Bebe Winans 2. Rise by Dave Koz and Friends 3. Fortune Teller by Fourplay 4. Botswana Bossanova by David Benoit 5. Come Away With Me by Incognito 6. Rio Funk by Lee Ritenour 7. Modaji by Dave Grusin

In the Diagram for CS42L73, you will see that the line output of this codec connects to external class D amplifier. Apple might use this amplifier not for line-out but for driving the tiny built in spkrs.

Oh my, yes you are right. Well, back to the diagram for now.