The FD3 is proof that even if you make some really stupid decisions things can turn out okay in the end. Again standard disclaimer “If the title did not give it away I am nowhere close to a professional reviewer or maybe even a competent one.” @hawaiibadboy has done a much better job reviewing this set then i will, but I wanted to do it anyways.
As is my custom, I review IEMs set up the way I personally enjoy them. This includes using aftermarket tips/cables if necessary. This “best for me” may not be the “best for you” setup and on this set in particular there are multiple ways to set it up. I also don’t generally use very audiophile terms and my way of explaining things may not be for everyone. If it is not for you feel free to seek other reviews.
Starting with my favorite section Accessories (bonus material this time)
Cable-- (Grade actually using the stock cable-- high praise)
Lets just get the 900 pound elephant in the room out of the way. I purchased the Pro version of the FD3 and have the modular cable. The modular system is very competent. It is easy to change, secure, and adds very little in extra weight or size to the jack. Not exactly at the level of Dunu’s system, but it is as close as you could get and the only slight edge is due to Dunu being slightly faster since you just put in and release instead of put in and screw down the covering part. The cable itself is a nice dark grey color with a pretty squared off braid before the split into 2 reasonable thinner braids after. It is not quite as soft, a bit heavier, and springy for my preferences but it is overall a worthy value add if you are in the need of the modular system.
Also I tested the FD3 with my Dunu cable, a inexpensive Yinyoo cable, the FH3 stock cable and the somehow worse stock Tin T2 cable. The sound did not improve or worsen. (this was originally going to be the main review…)
Case (grade – meh)
The case is basically a Pelican 10XX or a very good knock off of one. So you can not easily pocket it. It does not have useful partitions for accessory separation. But it does offer really good protection at least and fits the IEM with the cable so still better then some companies.
Tips (grade – aftermarket worthy-- damn high praise)
Most of the IEMs I have are IEMs with tips I will never use. Fiio is not one of those companies. Honestly their stock tips are really outstanding. I actually was torn over using the stock “vocal” clear with red bore tips, but only went aftermarket (Azla crystal tips) because they are just that very little bit better and it is very little… like if I need my crystal tips on something else putting the Vocal tips on this IEM is not a big loss at all. Really high praise.
Extras (Smartly chosen – high praise)
Fiio includes a MMCX removal tool which should be a requirement if you are going to force the MMCX standard on your customer. Fiio includes a brush… so clean your IEM. Finally Fiio includes a narrow nozzle and a wider nozzle that does change the sound. They default to the narrow one which is more beneficial to lower frequencies then the wider one… I am using the wider one because honestly the lower frequencies need no help on this set, for me personally.