JVC HA-FD01 Class S Solidege
Dec 27, 2017 at 11:59 AM Thread Starter Post #1 of 428

Mimouille

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Dear all,

A couple of months ago I discovered this new JVC (Japan only so far) iem, and given JVC's track record with dynamic drivers, this seems quite promising.

f_K0001010382.jpg


This iem, like the FW01, is the top of a line with lower end 02 and 03 models.

It carries a 11mm "D3" dynamic driver with a "diamond like carbon diaphragm", a moving air damper and a Titanium casing.

ha-fd01_driver.jpg


Beyond the technical mumbo jumbo, it has a few interesting characteristics. It uses MMCX connectors, and also has a 360 degree rotating nozzle for optimal whether your wear it up or down.

ha-fd01_adjust.jpg


Finally, it allows to change the inner nozzle between three materials : Titanium, Brass and Stainless Steel, to adjust tonality.

ha-fd01_nozzle.jpg


More info (in Japanese on the JVC website).

I might get a pair soon unless JVC is reading this and sends me one for free...

http://www3.jvckenwood.com/accessory/headphone/ha-fd01/

Below find some (Google translated) specs :

Screenshot_20171227-175759_01.jpg
 

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Last edited:
Dec 27, 2017 at 4:40 PM Post #7 of 428
Um, your pic is the FD02 and not the FD01. :ksc75smile:
 
Dec 28, 2017 at 1:46 AM Post #10 of 428
Just a short summary of difference I found between 01/02:
-FD01 has interchangeable nozzles , 02 doesn't
-FD 01 has a isolated L/R cable, 02 doesn't
-FD01 has a titanium driver case, the one for 02 is made of stainless steel

Spec-wise they are identical. Personally I am interested in FD02 and LZ A5 lately.
 
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Dec 28, 2017 at 7:09 AM Post #11 of 428
Just a short summary of difference I found between 01/02:
-FD01 has interchangeable nozzles , 02 doesn't
-FD 01 has a isolated L/R cable, 02 doesn't
-FD01 has a titanium driver case, the one for 02 is made of stainless steel

Spec-wise they are identical. Personally I am interested in FD02 and LZ A5 lately.
So the most important difference is titanium driver case and stainless steel and i read i FW01 thread that the FD01 sounds more refine than the FD02 because of that difference ,
 
Dec 28, 2017 at 11:11 AM Post #12 of 428
These look really interesting and I am intrigued to try them. My only complaint about the FW01 was that 90% of my MMCX cables didn't work. It was as if the connector was slightly different and most of the MMCX cables I had would not insert all the way. Anyone else have that problem on JVC? I don't remember that on my FX1200 by memory, but that was long before I was a cable-hoarder :)

-Collin-
 
Dec 28, 2017 at 6:31 PM Post #14 of 428
Dec 31, 2017 at 6:10 AM Post #15 of 428
He seems to say it is quite bright or cold? Not as emotional as his wooden cousins? At least for the FD02. Maybe the different nozzles can change that on the FD01.

Seems that way to me as well after reading the translation via Chrome. It's possible that things could change with burn-in at the 300hr mark, but for now he recommends the FW01.
 

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