[audionewbi]

Bro don’t want to do overtime because of IEM anymore, getting old

 

[mochill]

Then we should all just enjoy the music with what we have (☞ ͡ ͡° ͜ ʖ ͡ ͡°)☞

 

[chaiyuta]

Today I went to trial-listening a demo unit with a proper desktop dac/amp and Roon Player. For those who are FW series fanboy, this one worths blind-buying. FW10000 SQ is a huge step improvement from FW01. It worths its price. The competitor would be SONY IER-Z1R. If you are eyeing on Z1R, please consider to try FW10000 before making a final decision. I believe that someone might prefer one over another and vice versa. For me, I prefer FW10000 over Z1R, HS1670 SS, DITA Fedelity, etc.. any 1DD IEM I ever heard. The fitting might become a issue for someone since that extrude mmcx socket part might hit your outer ear. Fortunately, after I adjust rotating FW10000 a bit, I can get a perfect fitting without a issue. FW10000 can be perform full potential once you use portable amp or desktop dac/amp. If you try with a DAP and find that the mid is too thin for your taste, it might mean your DAP has not enough power to drive it well.

 

[endlesswaves]

If you try with a DAP and find that the mid is too thin for your taste, it might mean your DAP has not enough power to drive it well.

Hi, which DAP did you tried it with and found the mids too thin. Do you think Sony WM1A/Z has enough power for it?

 

[chaiyuta]

The demo unit comes with a stock 3.5 plug and I don't have a mmcx balanced plug. I used DX200 + my AMP1 Mod in setting of high gain mode. I felt likes it bring about 60-70% of what I listened with desktop-sized player. My concern is that if you use any entry-level DAPs e.g. Shanling M0, and you don't satisfy FW10000 sound you should try it with a bigger and more power dap instead. I don't think WM1A/Z on a 3.5 plug can drive FW10000 to reach it full-potential. It should be something likes LPGT, Canyin N8, or iBasso DX200+AMP8 (4.4mm plug) in my opinion. However desktop-sized dac/amp or portable amp are still better.

 

[endlesswaves]

@chaiyuta thanks for the reply. I heard that DX200 with AMP 1-3 is not so good. But power wise it has more power than WM1A/Z. AMP 1 with 230mw into 32 ohms for single ended is more than enough for most portable use. It's incredible that you still find it lacking with this FW10000.

This is a dilemma. I use IEMs for portability. Full sized headphones for indoor desktop use. I wonder why JVC is making such a hard to drive IEM...

 

[chaiyuta]

To get proper loundness, my volume setting on dx200 is 85/150. Using with desktop dac/amp, it bring more emotional, musical, higher overall texture quality and wider soundstage too. It might need to try a demo unit by self.

 

[denis1976]

You folks are mistaken power with powerfull sound, the 1Z has on paper less power than the dx200 but sounds much more powerfull, don't mix power with quality, the 1Z for me is away better than dx200 overall, of course that will be a loss of body in sound with the dx200 amp1 , this dap is for detailed thin sound. ,not lush and fleshed sound like others, apart of having 230, 1000 or 2000mw , is the type of tuning

 

[FangJoker]

Now I really want to go to akihabara and listen to this. I have serious doubts about how a single DD can sound as good or even better than some TOTL IEMs. I use a desktop amp most of the time so power is not an issue and I've found that for many IEMs that I like, they do much better with a lot of juice. It's the sensitive IEMs that I usually dislike their sound.

 

[james444]

This is a dilemma. I use IEMs for portability. Full sized headphones for indoor desktop use. I wonder why JVC is making such a hard to drive IEM...

It's only a dilemma if you believe in subjective impressions more than in specs. The FW10000 have a sensitivity of 102dB/mW and an impedance of 16 ohms. Which means, a DAP like the tiny Shanling M0, which can deliver up to 80mW@32Ohm, should have more than enough power to drive the JVCs with ease.

 

[jmills8]

It's only a dilemma if you believe in subjective impressions more than in specs. The FW10000 have a sensitivity of 102dB/mW and an impedance of 16 ohms. Which means, a DAP like the tiny Shanling M0, which can deliver up to 80mW@32Ohm, should have more than enough power to drive the JVCs with ease.

On paper but paper not always the same as in real life.

 

[james444]

On paper but paper not always the same as in real life.

Ok, so let's talk about "real life". In real life, I own all JVC woodies up to the FW01, the DLC driver FD01 and a Shanling M0.
The M0 drives all of them with ease. I don't even have to engage high gain mode.

JVC FW01: 104dB sensitivity, 16Ω impedance. Easily driven by my Shanling M0!
JVC FD01: 103dB sensitivity, 16Ω impedance. Easily driven by my Shanling M0!
JVC FW10000: 102dB sensitivity, 16Ω impedance. Can't be driven by a Shanling M0? Tell it to the marines!

 

[endlesswaves]

Out of topic but I had a weird experience where the IFI Micro BL with Audeze LCD2F was unimpressive. Where else my Shanling M3S drives the LCD2F with better results. The shop manager told me it's synergy...

I am kinda new here so wondering about chaiyuta's impression that desktop amp drives the FW10000 better. Is this about power or synergy? Pardon my ignorance.

 

[Raketen]

It's only a dilemma if you believe in subjective impressions more than in specs. The FW10000 have a sensitivity of 102dB/mW and an impedance of 16 ohms. Which means, a DAP like the tiny Shanling M0, which can deliver up to 80mW@32Ohm, should have more than enough power to drive the JVCs with ease.

yes, but you forgot to take into account their impedance curve, pictured here:

 

[james444]

yes, but you forgot to take into account their impedance curve, pictured here:

Oh, my bad! I stand corrected. You're right, that does indeed look grim.