SONY NW-WM1Z / WM1A
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Jan 4, 2018 at 5:23 PM Post #17,776 of 45,723
probably a dumb question

my wm1a shut down as i was listening (battery drained out)

does it need some charging up before being put back on ?

i press the power key after charging it for 5 minutes but i get nothing

what gives ?

edit : nvm , after charging some more it came back to life hurrah

Stop trying to use it when partially charge or drained. Let it get to a full charge again and avoid like hell letting it drop to the point of shut down. When you do you are affecting the battery memory and will no longer take a full charge.
 
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Jan 4, 2018 at 5:26 PM Post #17,777 of 45,723
Stop trying to use it when partially charge or drained. Let it get to a full charge again and avoid like hell letting it drop to the point of shut down. When you do you are affecting the battery memory and will no longer take a full charge.

this was the first time it shut down due to battery drainage as i was enjoying music too much and lost tarck of the battery

i usually recharge it fully (up to 90%) and start hearing again , once it has reached one bar if battery
 
Jan 4, 2018 at 5:30 PM Post #17,778 of 45,723
I would be interested to know how this player will play with headphones HD650?

I have been enjoying 1Z with HD600. Please note that I listen at lower volume levels than the average person.

I am very happy with this combination. The HD600 (subjectively) won't add or take anything from the 1Z.

I drive these headphones through the single ended output, at normal gain. The volume levels are between 70 and 95, depending on the song (most of the time, I am on 80).

I haven't listen the 1A or the HD650, but according to what I have read, I believe that for me, it will be the preferred combination.
 
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Jan 4, 2018 at 5:42 PM Post #17,779 of 45,723
Who has used Lqi Cables on Sony balanced with Audioquest Nighthawks?
 
Jan 4, 2018 at 5:47 PM Post #17,780 of 45,723
this was the first time it shut down due to battery drainage as i was enjoying music too much and lost tarck of the battery

i usually recharge it fully (up to 90%) and start hearing again , once it has reached one bar if battery


I know it’s not always convenient but do your best to let it get to 100% charged up over night when you go to bed. You’ll get much better battery life and your battery will last longer on each charge
 
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Jan 4, 2018 at 6:04 PM Post #17,781 of 45,723
36DC7E19-949D-4453-8BE8-78BC4BF0F240.jpeg
What is this cable? and what changes in sound?

Sony own Kimber cable. Sounds good to my ears.
 
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Jan 4, 2018 at 6:08 PM Post #17,782 of 45,723
About 30 hours in on my 1z listening on balanced with Z5's I just went back from FW2.0 to 1.2.

I noticed quicker listening fatigue on 2.0 and while it is more detailed somehow missing some 'fun' in its sound signature. Maybe the extra detail and seperation tires me and makes me overanalyse its sound. Direct source I often didn't like on 2.0 but is always great for me on 1.2. Guess I am a bit of a basshead as well..

Yes, I have the same finding as you ....in fact I don’t feel FW1.2 lack any details , in my case I use Sony’s flagship headphone Z1R, with the upgraded Sony Kimble Cable which actually delivering full quantity of treble with fine details, very well match with FW1.2. For those who use Sony’s stock cable for Z1R, might say FW2.0 sound better, this is because the stock cable is very much inferior it actually reduce and smoothen the high frequency details, making it seems as FW2.0 sound better matching with the system. In fact it is true , if using Sony inferior stock cable u need FW2.0 to make it sound better. If your are using Sony Kimbler cable which is actually delivery full details , the Fw1.2 just sufficient., and similarly if the Sony Kimbler Cable is use on Fw2.0 , the quantity of treble become very much excessive , will make one fatigue of using Fw2.0.
By the way, my advise for those who only has the stock cable from Z1R , better get a better cable Sony Kimbler cable to replace it to enjoy the full capacity of the headphone when using with the premium player 1Z... ... else no point to spend so much money on such flagship products.
 
Jan 4, 2018 at 6:39 PM Post #17,783 of 45,723
Yes, I have the same finding as you ....in fact I don’t feel FW1.2 lack any details , in my case I use Sony’s flagship headphone Z1R, with the upgraded Sony Kimble Cable which actually delivering full quantity of treble with fine details, very well match with FW1.2. For those who use Sony’s stock cable for Z1R, might say FW2.0 sound better, this is because the stock cable is very much inferior it actually reduce and smoothen the high frequency details, making it seems as FW2.0 sound better matching with the system. In fact it is true , if using Sony inferior stock cable u need FW2.0 to make it sound better. If your are using Sony Kimbler cable which is actually delivery full details , the Fw1.2 just sufficient., and similarly if the Sony Kimbler Cable is use on Fw2.0 , the quantity of treble become very much excessive , will make one fatigue of using Fw2.0.
By the way, my advise for those who only has the stock cable from Z1R , better get a better cable Sony Kimbler cable to replace it to enjoy the full capacity of the headphone when using with the premium player 1Z... ... else no point to spend so much money on such flagship products.

Using the 1z on FW 1.2 together with the Z5 and muc12sb1 cable seems like best synergy to me as well.. I bet Sony tunes their stuff to match well together especially when introducing a new high end DAP.

No clue why they changed this with FW 2.0 other then to please a bigger crowd who is using mainstream inputs on SE and making use of other brands. The Z5 for example is not sold anymore here in Europe..

At least they made sure we can easily switch between FW. They knew they would otherwise disappoint us.
Switching between FW easy has not always been the case with Sony DAP's in the past..
 
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Jan 4, 2018 at 6:48 PM Post #17,784 of 45,723
I know it’s not always convenient but do your best to let it get to 100% charged up over night when you go to bed. You’ll get much better battery life and your battery will last longer on each charge

sony has an ''optimum charge'' option , where the batery goes to 90%

i also read some articles which state that a charge between 20/80-90% is optimum

your feedback here is welcome , i am not an expert on battery usage/drainage

cheers
 
Jan 4, 2018 at 7:25 PM Post #17,785 of 45,723
sony has an ''optimum charge'' option , where the batery goes to 90%

i also read some articles which state that a charge between 20/80-90% is optimum

your feedback here is welcome , i am not an expert on battery usage/drainage

cheers

What you don’t want to happen is to cause battery memory limits. So letting it drain down to 20 is good and giving it a full charge makes the battery understand it’s storage better.
 
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Jan 4, 2018 at 7:27 PM Post #17,786 of 45,723
Using the 1z on FW 1.2 together with the Z5 and muc12sb1 cable seems like best synergy to me as well.. I bet Sony tunes their stuff to match well together especially when introducing a new high end DAP.

No clue why they changed this with FW 2.0 other then to please a bigger crowd who is using mainstream inputs on SE and making use of other brands.

At least they made sure we can easily switch between FW. They knew they would otherwise disappoint us.
Switching between FW easy has not always been the case with Sony DAP's in the past..

Yes, u have exactly same opinion as me that Sony should provides an easy, flexible way of selections of past and new sound signatures. You may refer to my past few posts , advocates for such features ..... not sure Sony will be so nice to us coming out another new FW with such selection features.
 
Jan 4, 2018 at 7:27 PM Post #17,787 of 45,723
sony has an ''optimum charge'' option , where the batery goes to 90%

i also read some articles which state that a charge between 20/80-90% is optimum

your feedback here is welcome , i am not an expert on battery usage/drainage

cheers

The manual does specifically state to perform a full charge, meaning 100% after every shutdown due low power. I guess for charge calibration reasons.
 
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Jan 4, 2018 at 7:32 PM Post #17,788 of 45,723
The manual does specifically state to perform a full charge, meaning 100% after every shutdown due low power.
But don't do a full discharge too often or you'll end up killing your battery sooner, I've ruined two laptop batteries like this and many Walkman and my ipod battery too
 
Jan 5, 2018 at 1:54 AM Post #17,789 of 45,723
But don't do a full discharge too often or you'll end up killing your battery sooner, I've ruined two laptop batteries like this and many Walkman and my ipod battery too
Agree, here is a good article: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Similar to a mechanical device that wears out faster with heavy use, the depth of discharge (DoD) determines the cycle count of the battery. The smaller the discharge (low DoD), the longer the battery will last. If at all possible, avoid full discharges and charge the battery more often between uses. Partial discharge on Li-ion is fine. There is no memory and the battery does not need periodic full discharge cycles to prolong life. The exception may be a periodic calibration of the fuel gauge on a smart battery or intelligent device. (See BU-603: How to Calibrate a “Smart” Battery)

Good general practice is:
- avoid deep discharge/charge. Stresses the battery, and a high current charge rate caused by a depleted battery creates heat, which is the nemesis of li-ion batteries. Check how hot a fully discharged battery gets, when on the charger.
- A charge circuit does not use constant current. It uses high current for a depleted battery, and lowers the current as the charge level increases.
- partial discharged battery charges at a lower current (this is controlled by the battery or device charge circuit), which is less stress, and causes less heat.
Other than these general guidelines, li-ion batteries are pretty forgiving.
 
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