Iron-Buddha
100+ Head-Fier
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Updating right now for the faster response times to button presses, but more sub-bass would be welcome!
SONY NW-ZX700
- Thread starter leylandi
- Start date
jehutyset
100+ Head-Fier
I updated my ZX707 and so far I haven't experienced the button delay I used to experience before so hopefully it's fixed for good.
Did I read somewhere here that the 707 needs no burn-in time? Or should I be expecting some sound changes?
jehutyset
100+ Head-Fier
that’s good question, I personally didn’t noticed any change after I went over the 200 hour mark but I also have used three very different IEM’s In the short time I’ve owed this device.
Some people do not believe burn in is needed. Many others have observed that burn in is needed.
Sony advises 200 hours, as the capacitors need to be used, so that they "form" properly.
Audio (and other things) have polarized opinions. Evaluate the choices, and decide for yourself.
The biggest change is right after you bought it for the first few hours. The longer you listen to it, the smaller gets the change.
The more power you drain from the Walkman, the bigger will be the difference you hear during the burn-in time.
Until the Burn-In Time is finished, there is no stable, linear power output from the capacitors. The more power you need, the more you will hear that effect.
But again, the biggest change is in the first few hours, the differences get very very minimal after that. I highly doubt that anyone will be able to hear the difference between an 100h Walkman and an 200h Walkman. It probably shows up in measurements, but i highly doubt its audible.
The difference between 0h and 20h is bigger than the difference between 20h and 200h
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SONY RECOMMENDS 200 HOURS BURN IN FOR ALL DAPS. This is for capacitors burn in.
I have used it for 7 months with many iems and found that I was able to drive final audio e5000 on balanced (4.4 fiio silver plated cu cable) at 65-70/130 volume. E5000 has a very good pairing
Mine is a uncapped version.
The more i am using , i am liking it more. I love sony signature.
Now looking to upgrade for AM2, reason is z1R
I’m enjoying my Japanese ZX707 (uncapped), but I just re-ordered a (used) pair of the Z1R’s after getting back into this hobby after a few years and want to go for the WM1A2. My ZX-707 was received new last week, has about 4 hours on it total and is still mint, as if it was just opened. Offering it up here for $599 shipped to domestic U.S. if anyone is interested. I’m in CA. I can provide references from others I’ve sold to here and elsewhere if needed, and you can also check out my eBay seller feedback..
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jehutyset
100+ Head-Fier
I’m the same position as you lol , I’m enjoying this ZX707 but I’ve been thinking lately of upgrading to the WM1AM2 , good luck with the sale and welcome back to the black hole that is the audiophile hobby.
Thanks man. All I can say is watch your volume levels. I had a little tinnitus when I got into this hobby about ten years ago, and it's now clearly worse. I'm finding ways to manage it though, and still listen very carefully to DAPs at lower levels, and not aggravate it. I stayed away for the last few years and built up my home audio system instead, and realized now that I just can't live without the holographic sound of the Z1R's.
jehutyset
100+ Head-Fier
Yeah I’ve been careful with the volume levels and do my best not to listen to my music too loud I had a lot of issues with my ears when I was growing up, so I developed a healthy respect for their care.
Which is a reason why I tend to gravitate to Sonys. People complain that they're underpowered, but that's exactly what I'm looking for, along with that special smoooothness of the Sony sound signature!
jjss
100+ Head-Fier
Lately have been playing with this setup:
Sony 707 -> Centrance Ampersand -> Kojo Technology Crystal E -> IER-M7
A bit of product background: the crystal series, uses Kojo's proprietary virtual earth technology, is meant to enhance SQ by improving S/N giving a quieter noice floor, thus helps improve delicate expression of music, e.g. sound/note extension is very obviously improved .
Perceptually whether there is noticeable diff subjects to quite a few variables, like your setup and your perceptual level of JND. Interestingly, I find this device "most" benefits mid-fi products as their noice floor (S/N) can be improved quite a bit. Higher end/TOTL products should already have a v low noice floor and suspect that such kind of technology may not help that much.
My personal assessment by doing a A/B (simple plug/unplug takes less that 1 sec and all parameters remains unchanged, any diff can be heard instantly!) shows that the background is darker rendering the music fuller and richer, and resolution, space, imaging, clarity, timbre are enhanced. So far a worthy purchase ..
Sony 707 -> Centrance Ampersand -> Kojo Technology Crystal E -> IER-M7
A bit of product background: the crystal series, uses Kojo's proprietary virtual earth technology, is meant to enhance SQ by improving S/N giving a quieter noice floor, thus helps improve delicate expression of music, e.g. sound/note extension is very obviously improved .
Perceptually whether there is noticeable diff subjects to quite a few variables, like your setup and your perceptual level of JND. Interestingly, I find this device "most" benefits mid-fi products as their noice floor (S/N) can be improved quite a bit. Higher end/TOTL products should already have a v low noice floor and suspect that such kind of technology may not help that much.
My personal assessment by doing a A/B (simple plug/unplug takes less that 1 sec and all parameters remains unchanged, any diff can be heard instantly!) shows that the background is darker rendering the music fuller and richer, and resolution, space, imaging, clarity, timbre are enhanced. So far a worthy purchase ..
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After testing with my IEMs for a week, I can nearly confirm that the sub-bass is back on firmware 1.02.00 but still not to the magnitude of the 1st firmware ver. 1.00. However, I found that the mids and high is improved on 1.02.00 (sound density increases, more solid than 1.00. The high and mids sounded a bit hollow and thin in 1.00 although with very good sub bass). Another factor that affects the sound signature is the burn-in time of my ZX707. By the time it was updated to firmware 1.01.xx it only had around 170 hours of burn-in and now it has reached nearly 490 hours.
Not sure if anybody hear the same and I am looking forward to hear more from you guys.
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