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    • The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    The Open-Back IEM That Lets You Hear More
    Video

    The Open-Back IEM That Lets You Hear More

    $615.00
    Open-Back, All-Day Comfort. 10mm driver, airy stage, balanced tuning for fatigue-free listening. 🎧
    Fosi Audio IM4 Open-Back In-Ear Monitor brings long-lasting comfort and high fidelity together. A 10mm beryllium-coated diaphragm with low distortion delivers dynamic bass and sparkling treble, while balanced tuning keeps vocals and instruments natural across genres. The open-back, dual-chamber design reduces resonance and inner-ear pressure for an airy soundstage that stays relaxed for hours. An N52 dual-magnetic circuit improves response and dynamics. The 4-strand 5N OFC silver-plated cable with gold-plated connector keeps the signal clean. Lightweight CNC 6063 aluminum shells, triple-tunable ear tips, and two swappable nozzles let you tailor fit and sound. Back this project on Kickstarter now.

    About

    Fosi Audio specializes in designing and manufacturing high-quality audio equipment. We offer a wide range of products, including amplifiers, DACs (digital-to-analog converters), and headphone amplifiers, among others. Fosi Audio was founded in 2017 and has quickly gained a reputation for producing affordable yet high-performance audio gear.

    FAQ

    What does it mean to back a project (pledge)?

    When you back a project, you are pre-ordering the product. That means you will get it once it's produced. Besides getting the product itself, you're also joining a community. Follow along the production process, take part in important surveys and give the creator valuable feedback.

    What is Kickstarter?

    Kickstarter is a launchpad for creators to raise funds for the initial production of their invention. Backers (that's you!) can support the creator by pre-ordering the product at a discounted price.

    How do I pledge?

    In order to pledge, click that green button that says Back this project . You will get to select your shipping country and choose your desired pledge level and reward.

    Reviews

    Bmedia review on TikTok, I liked what I heard and I liked your products. :) ; I like the value of Fosi Audio products. ; Open back iem. Youtubers talking at the iem ; I have other Fosi audio gear which I am happy with and this project had good reviews on Audio websit ; I am a fan of Fosi Audio and need IEM ; I love fosi audio! This is my 5th product ; I heard a greate review ; liked the design, have enjoyed fosi products ; Love Hi-Fi ; Very interesting product ; Got other products of fosi and really like the products. ; interesting product ; I am a huge Fosi Audio lover, I love your brands design and colours, I have also backed your Luna 3 ; It seems interesting ; Saw a very positive review on TikTok and they ate within my price range ; I am new to the IEM space and I have only heard good things about Fosi, so I wanted to make my first ; Heard good things about the k7 and was planning to redo my audio setup. ; i liek audio ; been looning to get iems and the fycial tuning with parts peeked my interest ; I hope to discover an innovative product ; I like the idea of the open back and Chang Lee nozzle and I like the company ; Sounded interesting ; Customisability and Price point of the product ; Need an in ear monitor for music / band purposes ; Appreciate the products that Fosi Audio produces ; Previous experience with Fosi Audio ; Looks cool ; I am very intrested in the iems and would like to try them ; I buy all your guys releases ; I’m an audiophile who powers iems over headphones ; Very intersting iems ; I own a lot of in ear iem and earphones. I know foai for their great get in hifi and so I am hoping ; Already an owner of several Fosi Audio devices. ; Fosi quality and the desire for an open back IEM ; I love iems and never had open back headphones so Im interested to see how they sound ; Ive heard the name Fossi Audio, I regularly back products, and Im interested in open backed IEMs. ; I was looking for IEMs and ive decided after looking at your products that I want to help you ; Good reviews from Head-fi.org ; The reviews were very positive on YouTube and I wanted something that was in ear but more open as yo ; but bad. This IEMs are high likely beat my worst IEMs. I hope this one will satisfy my curious. ; The product looks very interesting ; I need a better earphones ; I enjoy iem earphones as a hobby. ; I need it for Sim racing ; Want to try open back iem ; I was looking for new iems ; look like a great product ; I want some hifi in ears, and Fosi is a well known brand for budget but high quality audio products ; Have V3 and love the quality of sound. ; Price allowed me to just try it ; why not? first fosi device - before i buy all the time wiim products ; i like good sound ; I back all fosi ; I have Fosi products, which have been fantastic. I wanted to try an open back IEM and I trust Fosi q ; I’m into audio stuff ; Open back iem is uncommon ; seems like an interesting IEM ; interested in iems for a while ; Because i m4 seems like

    🎁 Support this project & unlock additional 30% off Darwin M2

    The Darwin M2 is a versatile tool for makers and learners—Kickstarter-funded and ready to ship.

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