I have to use medium and small stock tips, I like the sound from them, but Iām running epro horn tips
Thatās why I need them! I love their sound too. CP145 work for me too.
I didnāt really have a similar experience, but did hear a noticeable difference between 2 different units. My initial unit had solid, but overall mellow bass, and the highs seemed a little rolled off, but I did like the sound and was fully satisfied with it. I exchanged them for another one because there was something rattling around inside the left earpiece, though it didnāt affect the sound.
The second unit I received had more pronounced bass as well as more extended treble, though not at all harsh. I found both units to be particularly natural sounding and smooth, with well textured and fast bass.
If you havenāt tried it yet, try putting a small piece of micropore tape (so it breathes some) over the main vent that overlies the DD. It REALLY boosts the bass. On the first unit I had, I preferred it taped, but with my second unit, the already good bass becomes too pronounced.
I also really like the included FiiO FD1 cable, and actually am using it with the Mangird Tea. It looks better than a silver cable.
So is it unit variation or maybe a QC problem for the earlier batches?
For me it was sample variation I think, but nothing egregious.
Thanks for your reactions. Itās really nice to hear someone elseās experiences.
Iām kinda shocked with this FD1. It sounds nothing like the first one I had. Chalk another one up to unit variation. Iām getting tired of this. The consumers have no idea what weāre going to end up with if all the products end up sounding completely different from one another.
With this FD1, I donāt need any more bass than it already has. The first one was horrible. This FD1 Iām so shocked with, Iām going to have to do some critical listening comparing it to the FH3. They both are tuned similarly with the FD1 possibly having a bit more dynamic punch, slightly less bass but boosted treble in comparison. Iām really enjoying it. They sound quite similar.
Itās nice to hear you like the cable as well. It is beautiful, soft, smooth, flexible and light, but not too light. (the LC-RC was so light the cables wouldnāt stay in place behind my ears from the weight of the cable. It defied gravity). I wish they had a balanced version.
Who knows? So far, Iām very happy I gave it a second shot. Itās not going back.
Thieaudio Legacy 3 vs Fiio FH3.
Sucks I donāt have a good L3. I even paid for a custom shell.
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If only there was an easy and accessible way for everyone to be able to measure the frequency response of their products to know if they have something out of place or not for sure. I donāt know how measuring works for the most part, but Iām guessing there is a lot of variables you have to account for that can alter the frequency response you end up with such as how you place it to measure and what youāre using to measure.
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Had a few more hours listening. I have to say these are an absolute bargain for the price.
Currently Iām using the stock translucent tips with red cores. Very comfortable and secure in the ears. Are spinfits significantly different?
Iād say the soundstage is quite narrow, more narrow than my Sennheiser IE80, but instruments sound natural and have texture. The IE80 essentially doesnāt have any mids by comparison 
Just an enjoyable, non-fatiguing listen overallā¦ I guess you could say they lack a little bit of high-end detail, e.g. the treble doesnāt compare to my Denon AH-D7000, hence people here saying they donāt suit classical or acoustic music.
I guess Iāll just have to save for the Sony IER Z1R next! I think Iām starting to prefer IEMs over headphones for the way they just disappear and youāre left to enjoy the sound.
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They are different. The silicone is softer and the bore size is smaller. The tips with the red bores are labeled ābassā tips and are wide bore. If they give you a proper seal, are comfortable and you enjoy their sound, I donāt think thereās any reason to change something that isnāt broken.
That being said, if youāve never tried Spinfits or any other tip brand and are interested in what they might have to offer, you owe it to yourself to try out as many as you can afford. You might find they are perfect for you. Maybe not. Give it a shot if youāre interested. What could it hurt?
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I definitely agree. Building up a good collection of high quality ear tips over time is an important part of this hobby. Some IEMs are not that ear tip dependent (I actually donāt think the FH3 is very picky.), but with others, the ear tip choice can make or break the sound (such as the Legacy 3). The stock FiiO tips are good quality though, IMO.
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āI think Iām starting to prefer IEMs over headphonesāā¦
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What are your thoughts of FH3 vs NA2?
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guysā¦ may i know which tips you prefer and why? atm im using the balance, but my right ear kept pushing out the iem on medium tips, large is too big it is hurting my earā¦ spinfits fits ok for me but its itchy afā¦
The stock tips seem fine for me, but my Horn tips seem to work well with it. Loses just a touch of punch, but seems to really make the sound ānatural.ā I hate a stupid word like that, but I havenāt had a chance to dissect the changes all that much. It just sounds better to me, Iāll try to give more info when I can.
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Final Type E tips
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Been listening to my FH3 for a few days, absolutely loving them. They easily top my L3 and Moondrop. I keep coming back to the stock black tips in terms of best and most balanced sound for my tastes. Interested in hearing how they sound on the upgraded silver cable.
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Welcome Nyaasu!
Itās great to hear Fiio has another happy customer. Man, I sound like I work for Fiio. 
Would be interested in your more in-depth thoughts once youāve had more time with the FH3.
The bass on the FH3 is of better quality, with a little better speed and texture, and has a little more quantity. I like the tuning of the NA2 bass more. While there is still a lot of bass, but it is a little cleaner for all genres of music. The mids are not as forward on the NA2. Treble extension is better on the FH3. Despite the different design, I think the resolution of both are equal, but the micro detail is actually better on the NA2, even though neither IEM is fatiguing at all. Timbre is really good on the FH3, but I find coherence and timbre to be better on the NA2, which shouldnāt really be a surprise (single DD). Both are really, really good sounding IEMs. Build quality and feel is no competition, The FH3 is superb. The NA2 shell is very bland and seems cheep, but handling it is a lot better, as it is quite robust IMO. The fit is great on both.
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