The Single DD: I've listened to over 20 earphones ranging in price from $30-$1500, and in just about every conceivable configuration of DD, BA, EST, Planar and BC. I've found each driver type has its pros and cons. A lot of earphones try to token the benefits of different drivers by using them in hybrid configurations. However, when listening closely it is fairly easy to tell the difference in timbre as you move up and down frequencies. This can lead to a very engaging experience, but I would consider it more interesting than natural. To my ears...

Prologue I dove into the IEM rabbit hole about 3 years ago. In that time I've been fortunate to listen to over 20 sets ranging from $100-$700 (with a few outliers :smirk:). Among these earphones, the original (OG) DUNU SA6 stuck in my memory for having unusually good dynamics for an all BA set, excellent comfort, a relaxed natural tuning I could listen to all day long without fatigue, and the only unit I've come across with the 2 pin connection in a fully recessed socket. This last detail may seem strange to call out, but for gear that is known for...

Sound: This is the first exposure I have had to planar IEMs, and I am pretty blown away. They seem to have the punch of single DD, the speed of BA, and the treble extension of ESTs. But, unlike many tribreds, this earphone has no coherency issues as all sound is being produced by a single driver. The sound signature is largely neutral, with a tasteful amount of bass boost and a bit of extra energy in the lower treble. The result is a very pleasant sound that has a lively characteristic to it. The sound stage is wide but not very deep. The imaging is...

I’ve owned these for about 6 months and am very pleased. I had the TRN BT20s Pro before getting this model. They both approach a true wireless IEM in the same way, but FiiO’s execution is superior in most ways. Here’s how they compare: Sound: Arguably one of the most important characteristics when converting an IEM to true wireless. FiiO stands out for raw power, but also clarity and extension in both treble and bass are better than the TRN. Also the typical Bluetooth hiss is very quiet on both but much less prominent in the FiiO. Lastly the...

Lets start off with the good. These are among the most beautiful IEMs I've come across. The faceplate is simple and embedded in resin for a seamless and elegant look. The resin is as clear as glass, and it is obvious great attention to detail was made during assembly. If you want a flagship look, this has it in spades. The only negatives I have about the design are: there is no vent (more on this later), also the end of the nozzle does not have a lip to retain eartips or a filter to block debris. The accessories: In short, they are lackluster. The...

Comparisons (Using Treble Filter): Moondrop S8 (699 MSRP): Furai is more comfortable and has superior bass with body and impact. Moondrop's lower mids and upper bass are very thin, making it feel anemic in comparison to the Furai. Treble extension is about the same, but Moondrop has a more detailed treble. Moondrop's imaging is much better with air between instruments. As a result, the Moondrop handles busy tracks with ease while the furai can feel congested. Overall the Moondrop provides a more analytical sound, while the Furai has more impact and...