FiiO FD3 PRO Earphones in-Ear Earbuds High Resolution 1DD Deep Bass Detachable MMCX Connector with 2.5/3.5/4.4mm Plugs DLC Black

Product Information

FiiO sent me a pair for review, and if I was a bit dubious at first, the FD5 ended up being as good as advertised. The Fiio FD3 sounds more energetic and detailed in this area, especially when I do listen to soprano voices or instruments like cymbals. The unique celluloid panel is covered with Z5D film coating glass for a pure yet fresh transparent look and the aluminum-magnesium alloy of the body makes it exceptionally light, making it easier and more pleasurable to carry around. Folks that are treble sensitive would do well to change out the treble filters for their balanced filter. This helps in a deep-diving lower end and a highly detailed, ultra-low distortion in the high-end frequencies.

Venting seems a bit different where the new FD3 air vents are at the bottom of the mmcx connector housing while the FD5 uses venting on the back of the shells. This cable sports a nice looking chin slider and Y splitter with a FiiO branding on the top that are made of metal material.

This collection includes 9 pairs of silicone ear tips (Bass, Balanced and Vocal) and 2 pairs of memory foam ear tips. Suddenly I remembered about the second, "black", sound tube so swapped immediately and after testing with the same material the miracle just happened! The acoustic prism so effectively used in the flagship FD5 for great sound quality is also featured in the FD3 Pro.

The part near the connector is a semi-open vent that helps alleviate driver flex, and provides a wider, more open sound. The upper midrange of the TinHiFi T5 is slightly less pronounced and energetic compared to the FiiO FD3 that was audible with female vocals and instruments like pianos or flutes. I also tried switching to the treble nozzles, but I found the peaks in the upper regions to be rather bothersome as a result. Thankfully in this case I did notice some improvement, which was further aided by switching to the wide-bore bass tips (despite the naming of the tips being somewhat counterintuitive here). The midbass bleed gives a very pleasant warmth to the lower mids, and male vocals have very good body and note weight.They fit nicely with a little pain being the stem hitting my ear, so turning it a bit forwards helped a lot. DLC (Diamond-Like Carbon) is a highly rigid material that also has an extremely lightweight structure that reduces unnecessary vibrations and makes the driver more responsive and clean sounding. Some of the best music I enjoyed through the FD3 Pro were music with large amounts of instruments (orchestral music mostly) and also energetic pop songs.

The MMCX connectors have a transparent housing and on each connector are right left indicators, which are a red ring on the right and a blue ring on the right connector. PS: I wanna thanks FIIO for sending me this review sample after my request as well as for being an audio company that accep critical listening review.Executive Summary: Fiio FD3/FD3 Pro are the smaller siblings of the FD5, which has been a hit or a miss since the release depending on who you ask. The mids in tonal quality and presence of the FH5s but now has a much more cohesive and smoother treble than either of their previous earphones, especially their FH5s. The 120 Cm cable is enough for most folks, and the over-the-ear wearing style is plenty comfy for all users. There is slightly fast attack and fast decay but given the congestion, separation is not much present .

We have very low leakage though, and I was unable to annoy my girlfriend with loud death metal, even though she was just 2 meters away from me, and I was listening at a deafening 110dB level. The FD3 tuning will satisfy much more than the Asian enthusiast community; it should satisfy anyone that listens to music as it actually has two distinct tunings with an easy nozzle change that happens to be a much improved filter design stemming from the FD5 tuning nozzle idea. I thought the FH5s had some amazing bass and mids presentation but was debatable how the treble was tuned.

That the problem might be with tips/cable/my source or even the tuning nozzles I used during this review. Magnesium aluminum alloy CNC machined housing with top quality design and aesthetics, Semi open design throws out a wide big stage.