IM4
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Reddit Reviews
Fosi IM4 should be everyone's sub-$100 pick.
The Septet is really disappointing, not because it's bad, but because my $85 Fosi IM4 does the same thing for much cheaper.
I'm listening to my first song on these as I type this (Ring of Past by Men I trust) and I'm pretty impressed! I like the detail up top and, like you said, the punch of the bass isn't as soft as I expected. I probably will mess around with long light EQ on my Protocol Max just to see how it goes, but overall I'm pretty happy for the price. Then again, I'm one song in haha
Fosi Audio IM4 (in black), Celest Wyvern Abyss (original, not the remaster), Celest Phoenixcall (clear not the red) , Elysian Pilgrim, Binary Acoustics EP321 in the mosaic color (zero interest in buying it though), Moondrop Blessing 3, Moondrop Blessing 2, Campfire Andromeda 2020, Binary Chopin, HiBy Yacht 10, Celest Pandamon V 2.0 (absolutely gorgeous shells), Tanchjim Soda, Simgot EW300, Softears RSV Mark I, Softears RSV Mark II, Tanchjim Fola, Juzear Defiant in emerald green, Kiwi Ears Orchestra Lite in green, Letshuoer Cadenza 4, Simgot EM6L, Crinacle Dusk, Truthear Nova (beautiful shell), Mangird Tea Pro, Truthear Zero Blue 2 (gorgeous shell), Tangzu Xuan NV mainly because of the box art, Tipsy M3 (mid sound, but the shells are drop-dead gorgeous), Moondrop Meteor, Letshuoer S12 Ultra, Moondrop Chu 2, ROSESELSA Aurora Ultra in blue, Softears Volume S, Dunu Kima 2, GK Kunten (hate the shilling but the design is nice), Moondrop Variations in black, Simgot Supermix 4, HiBy Ace, Final Audio A4000, Letshuoer S08, Binary Dynaquattro, Tanchjim Force, Tanchjim Origin, 7Hz G1 in white (too bad the sound isn’t great), Moondrop Kadenz, Divinus Fuduverse Version 1 (not v2), and Tangzu Xue Tao, which I’m pretty sure is what originally sold me on it visually. Edit: Twistura Woodnote, Cadenza 2, Juzear Harrier (in the blue), Ddhifi Surface too
**Pretty but sound is decent** under $110 ======================================= Fosi Audio IM4. Black. I think silver looks good too but can't confirm; I have the black one. I was actually pretty surprised by the sound. Pretty good. Very pretty and elegant shell. Nicely designed. Sound is actually purty good. Defiant. In emerald green. Gorgeous shell!!!!! Solid iem. But note it does have Quality control issues. Dunu Kima 2. Get the Raven version for better artwork. Looks nice! One of the best iems at the $100 pricepoint. Celest Wyvern Abyss original. Not remaster. Gorgeous gorgeous gorgeous shells! More of a vocal set. Has no technicals, ie no soundstage or imaging. But great for vocals. I got it for 9 bucks. Celest Pandamon 2.0. Purty shells. Beautiful shells. Chill sound. Pair it with Kiwi Ears flex eartips. I love the way it sounds. Very comfortable. Xuan NV. Not gorgeous per se. But the box art is stunning. But the iems aren't ugly by any means. Great sound. Great vocals. Great bass. I dig it. Also comes with Tang Sancai eartips. Save those for another iem in the future. Those eartips brighten stuffy iems. **Pretty shells but I'm not sure** under $110 =================== Letshouer S08. GORGEOUS shell. I can't find myself to enjoy it. It's a weird sound. I think Artii T10 (WAY WAY uglier) sounds better. **Pretty shells but sound is eh** under $110 ========= Zero Blue 2 and Zero Blue 1. Very pretty shells. Don't recommend for sound. Gets very harsh and sibilant. Cadenza v1. In purple. I bought it. Pretty. The sound is eh though. It's thin with male vocals. Pretty though. That purple color is gorgeous. Chu 2. It's a pretty shell. Sound is eh. Thin-ish with vocals. Not full. Cadenza v2 in Blue. Pretty shell. Recently checked it out. Still have it. Has a typical sound. 7hz G1. Pretty shell. I think it looks sick in white. Bought it. Too bright. Simgot EW300. Shells look nice. I didn't care for the sound. Celest Phoenix Call. Currently $69. Gorgeous! Absolutely gorgeous!!!!!!! But the sound is oh, so close but not there. :S I still kept it because I love its design. I like the clear one! https://preview.redd.it/lnubp4i6qkkg1.jpeg?width=600&format=pjpg&auto=webp&s=007704c2d634b3df2c5c4b51b196efc50aa20cfa
personally i love the Fosi Audio IM4
I absolutely love the new Fosi Audio IM4, i've got plenty of models of IEMs, including $1000AUD+ ones, but the Fosi Audio IM4 is pretty much the only IEM that's actually surprised me by how good they are.
I've got a bit of a Fosi collection, i've also got the Fosi BT20A Pro amp going into some expensive speakers, Fosi Luna turntable with Fosi Box X5 preamp, and Fosi i5 headphones. Honestly i got the IM4 IEMs just because i like backing Fosi on kickstarter and because the IEMs were affordable, i wasnt expecting much, especially since it is their debut entry into the IEM world. Keep in mind that just before my IM4's arrived, i got FiiO FD5's and Letshuoer EJ07M in, which are both much more expensive and up-market. i listened to the FD5's and though that they were waay too warm for me, so i changed out the nozzle and installed the triple flange ear tips which definitely helped, then i tried the EJ07M, which aside from the GOD AWFUL cable they come with (which i would have cut up and thrown out if it weren't so expensive) they are definitely great sounding.. but you'd expect that for how much they cost and the reputation they have. Then the IM4 arrived... and I put them in and I couldn't tell you exactly what it was but they just sang to me. I listened to songs I love such as The Light From One by Ane Brun and they just blew me away even though they're affordable. TL;DR Fosi IM4 is gud! <3
The cables come with them, and it's honestly a pretty good cable. The IM4 is definitely one of my absolute favourite models of IEMs.
The features and driver compliment don't tell you anything about how it will sound, or the quality of it. if the company wants to make a great sounding pair of IEMs they will, there are great sounding IEMs with just dynamic drivers, and crap ones with multi driver topology. I absolutely love my Fosi Audio IM4, I love my Hidizs Mk14 Turris, I love my Fiio FD5 and my Letshuoer EJ07M.
For Fosi’s first in ears they are really good. I got the silver pair and they’re really well made. I like them more for music and podcasts. Was fun for me to experience an “open back” in ear. For gaming I would look at something more like Simgot EW300 or save and get Kiwi Ears Astral which is my favorite set at the moment (by far, like way more than anything else in my 7-8 pairs)
I sampled them a month ago at CanJam and they sound very impressive for my liking.
Fosi IM4s, absolutely stellar for their price.
Take out the waifu out from it and i will guarantee you iems with waifu box are overated.. This are my top 5 list: 1. Pula Unicrom 2. Kefine Delci / Delci AE 3. Hidisz MS2 Pro 4. Fosi Audio IM4 5. Juzear Defiant
For $100, the Fosi IM4 are very capable and produce very good sound quality. Plus, it comes with 2 different nozzles and 3 different eartips geared towards balanced, bass, or more bass. Combine them all and you have a multitude of possibilities to get the best sound quality FOR YOU. They’re a blast to listen to and I’ve tried it with multiple different games and they have performed exceptionally. They may be worth a look by you. Here’s the reviews on Head-fi.org: https://www.head-fi.org/showcase/fosi-audio-im4-in-ear-monitor.28585/reviews.
Just got my pair in today from Amazon. Was a nice gift from my wife, so I was pretty excited to get them. I listen with the Performer 5+2 and Punch Audio Martilo as my 2 main sets. I’m not going to downplay it- the IM4 blew me away. They sound absolutely FANTASTIC. They actually have a good quantity (and quality) of bass! Even coming from the Martilo’s, it was still really nice to hear that!! And they have great detail and instrumental separation too. Just an all around real pleasure to listen to! I had to put them up for a bit because I could have sat here listening with them for hours and I felt like my poor wife, who is sick, needed some TLC. I don’t use IEM’s for gaming, but I’m going to try them with my Steam Deck tonight because I told someone I would try and see how they are for that. Do you use the IM4 for gaming at all?
For $100, the Fosi IM4 are very capable and produce very good sound quality. Plus, it comes with 2 different nozzles and 3 different eartips geared towards balanced, bass, or more bass. Combine them all and you have a multitude of possibilities to get the best sound quality FOR YOU. They’re a blast to listen to and I’ve tried it with multiple different games and they have performed exceptionally. They may be worth a look by you. Here’s the reviews on Head-fi.org: https://www.head-fi.org/showcase/fosi-audio-im4-in-ear-monitor.28585/reviews.
I’ve been really enjoying my electronic music with the Fosi IM4. You get 2 nozzles and 3 different sets of ear tips so you can try different combinations to get the sound quality you’re looking for. I listen to Max Cooper, Rival Consoles, Monolake, and Barker, to name just a few of the artists I really like. Chemical Brothers are fantastic also! It has a good amount of bass and also great detail in the sound quality.
There’s a bunch of great reviews on Head-fi.org. Here’s the link: https://www.head-fi.org/showcase/fosi-audio-im4-in-ear-monitor.28585/reviews. It’s become my favorite set next to the Punch Audio Martilo, and I would recommend that set wholeheartedly, but they’re around $300. The IM4 have replaced the Aful Performer 5+2 as my main set next to the Martilo because they’re a lot more fun than the Performer and the IM4 is really delivering on all fronts: good bass, smooth treble, great detail. And because of its open back (vents on the faceplate) design, it’s a wide open, very expansive, soundstage. I just really love them with the sound quality they provide.
The Fosi IM4 is often overlooked. It’s a real pleasure to listen with. So glad my lovely wife gifted it to me, otherwise I might never have pulled the trigger.
Yeah, the IM4 was a real surprise. I mean, all the reviews have been really great for it, but I just wasn’t expecting to like it as much as I have. That’s a real treat in this hobby. Plus, I had decided not to get it because I didn’t want to spend yet even more money on this costly hobby. What a complete surprise to have my most awesome wife surprise me with them! She has wanted to surprise me with something, but hasn’t been able to find an affordable pair that she could buy for me. When she saw that I had been looking at them and they were only $100 compared to the ones that are $300-$500 that I’ve been looking at, she was excited to get them. And then when she saw how much I have enjoyed them, she was so happy! I hope you can find them cheaper and are able to grab a pair and end up also liking them as much as I have!
The Fosi IM4 is a $100 US priced set that I feel punches above that price point. There are many great reviews on Head-fi.org: https://www.head-fi.org/showcase/fosi-audio-im4-in-ear-monitor.28585/reviews. It has a very energetic and fun sounding V-shaped sound quality that I think you’ll really enjoy. It has replaced some higher priced sets I have, even the $215 US set, the Aful Performer 5+2, which was much more clinical sounding. If you want to spend considerably more, the Punch Audio Martilo is also a v-shaped sound, but more emphasis on the bass, although it is much more than a basshead IEM. It handles detail and imaging well with smooth treble. Might be worth a look for you. Here’s the reviews on Head-fi.org: https://www.head-fi.org/showcase/punch-audio-martilo.28228/reviews.
Yeah, I was pretty shocked with the sound quality of the IM4, especially being only a $100 US set. I was expecting I would like it, but I’ve been using it for everything, even some light gaming I do on my Steam Deck. It just really delivers in every area that matters to me. The bass was surprisingly well done, and coming from my primary set, the Martilo, that’s saying a lot. But I found the detail to be very good, and I listen to a lot of electronic music where that’s important to me. I love that it has a very open and expansive soundstage too. Just all around a great set. They left quite the impression on me.
Fosi IM4. Fantastic IEM that you never hear anything about. Numerous good reviews over on Head-fi.org. Here is the link: https://www.head-fi.org/showcase/fosi-audio-im4-in-ear-monitor.28585/reviews. I can honestly say, firsthand, that this is now my 2nd favorite IEM next to the Punch Audio Martilo. It has now replaced the Aful Performer 5+2 as the other IEM in my primary rotation next to the Martilo. Sounds fantastic with the electronic music I listen to and for every other genre I throw at it. Good bass, smooth treble, great detail, all on an open and expansive soundstage. It really is that great. And if you’re someone who owns the Simgot EW300, the nozzles also work on the IM4. I’m specifically using the gold nozzle from the EW300 and I love the sound quality I’m getting.
The Robin’s are fantastic earbuds!!! That was an awesome choice! Next to the Soundpeats H3, they have the best sound quality I’ve ever heard in Bluetooth earbuds. A great option is the Fosi IM4. I have them and I like them more than the Aful Performer 5+2, which is a $200 set. They’re $100 on Amazon. They have good bass and smooth treble and are just so fun to listen to. You don’t hear much about them on here, but read some reviews on Head-fi.org: https://www.head-fi.org/showcase/fosi-audio-im4-in-ear-monitor.28585/reviews. I really think they’re a great set and you’ll be really happy with them.
Right at $100, the Fosi IM4 is a very fun sounding IEM. I have a blast listening to pretty much any genre of music with it. I feel like it never gets enough love.
A less expensive choice that I love for electronic music is my Fosi IM4. I like it better than my Performer 5+2. Or you could go up to the Punch Audio Martilo (or Portazo if you’re looking to spend less) which is my electronic music powerhouse. Bass, detail, expansive soundstage.
End of reviews