Best IEM That Don’t Leak Sound in 2024

One of the most overlooked aspects when purchasing an IEM is noise isolation. This is especially true for people who have never used a pair of in-ear monitors (IEMs) before.

The design allows them to isolate sound better than almost any other earpiece on the market.

IEM with good isolation

Insulation is an important factor to consider when purchasing your next IEM. The degree of isolation provided by a pair of IEMs determines how much sound you hear from external sources, and vice versa.

Another thing to consider is what type of earpiece you prefer. There are two main types

Universal fit. Universal-fit earphones typically have a foam or silicone sleeve that compresses to fill the ear canal.

Some people prefer foam because it provides a better seal and blocks out more outside noise, but others find foam uncomfortable after long periods of listening. Some people also like silicone sleeves because they are reusable.

Customized. Custom in-ear monitors are molded to the shape of your ears, providing a perfect fit every time, but they are much more expensive than commodity products.

It also takes about two weeks to make, so if you don’t want to wait that long, you may want to choose a universal product.

Best IEM That Don’t Leak Sound

1. Sony IER-Z1R Signature

non isolating in-ear monitors

If you are looking for an IEM with the best ANC feature that doesn’t leak sound, the Sony IER-Z1R is your best choice. This is a top-of-the-line option known for its luxurious materials and excellent sound quality.
IER-Z1R boasts excellent noise isolation thanks to its hybrid driver design and various ear tip options. Delivers a rich, detailed sound signature for audiophiles.
These in Ear Monitors have a great combination of active and passive noise cancellation. This effectively blocks external noise from entering, while also preventing sound from going out of the headphones.
The list of features continues in the sound department.
Sony IER-Z1R Signature headphone reproduces rich, detailed sound while providing a wide soundstage. When the bass kicks in, the low frequencies are emphasized ever so slightly.
However, the mids and treble are not muddy. Overall, the sound reproduction is faithful to the original.


  • Excellent noise isolation
  • High-quality materials
  • Rich and detailed sound signature
  • Various eartip options for a secure fit


  • Expensive
  • Larger sizes may not fit all ear shapes.

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2. Shure SE846 BT2

best iem for isolation

Among the other IEMs presented here, the Shure SE846 BT2 is undoubtedly the best for the title of best premium headphones. And there’s a reason for that.
It is extremely durable, especially when using military-grade materials (Kevlar).
The SE846 also has good audio performance that justifies its price. While most IEMs struggle with bass issues, the Shure SE846’s sub-bass response is great and the mid-bass doesn’t disappoint. You can bring out full bass when you need it without overpowering other frequencies.
Midrange frequencies bring out more detail in your songs while keeping vocals clear and clear. The treble range isn’t bad either, keeping pace with other frequencies while allowing the treble to shine.
Considering that the SE846 is a pair of IEMs, it can block out most outside noise while preventing sound leakage more effectively than some closed-back headphones.
It also comes in a variety of eartip types and sizes to ensure no sound leakage, even at higher volumes.
The Shure SE 846 is a slight improvement over the Shure SE535 BT2. They look similar and perform at about the same level.
However, the Shure SE 846 beats its older sibling in almost every aspect sound, connectivity and features. The only advantage of the SE535 BT is its price.
The Shure SE846 is a great IEM for everyday use. Recommended for people who commute frequently and need privacy for their audio. If cost isn’t an issue, you’ll get a lot of benefits from the SE846.
  • Rich Sound quality
  • Excellent reproduction
  • Perfect Sound motitoring
  • Advance in technology


  • Quite simply
  • Poor fit

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3. Westone W40

best iem for noise isolation

Westone is a brand known for its high-quality, custom IEMs. The W40 offers a comfortable fit and excellent noise isolation thanks to its ergonomic design and various ear tip options.

It offers a warm and balanced sound signature, making it suitable for a variety of music genres.


  • Very good noise isolation
  • Comfortable and ergonomic design
  • Warm and balanced sound signature
  • Detachable cable with various connection options (optional)


  • The sound signature is not as neutral as it should be.

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4. Shure SE535

Shure SE535

Shure is another respected brand known for its professional-grade audio equipment. The SE535 Special Edition provides excellent noise isolation with a snug fit and excellent seal.

It boasts a balanced sound signature with clear highs, warm mids, and presence but not overpowering lows.


  • Excellent noise isolation
  • Balanced and detailed sound signature
  • Comfortable and stable fit with various eartip options
  • Detachable cable for easy replacement


  • Not as isolated as the Etymotic Research ER series.

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5. Sennheiser IE 300

Sennheiser IE 300

Sennheiser is another well-known brand in the audiophile world. The IE 300 offers excellent noise isolation with a snug fit and well-designed eartips.

It delivers a balanced sound with a clean midrange, detailed highs, and controlled bass response.


  • Excellent noise isolation
  • Balanced and detailed sound signature
  • Comfortable and stable fit with various eartip options
  • Relatively affordable compared to some higher-end options


  • The bass response may be considered light by some.

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6. Etymology Research ER2SE

Etymology Research ER2SE

They remain the best choice for excellent passive noise isolation due to their deep insertion design. It offers a neutral sound signature, making it ideal for audiophiles who value accurate sound reproduction.

This is the entry point into Etymotic’s high-performance IEM lineup. It leans slightly brighter than the other two models, making it a good choice for those who prefer a touch more clarity in the treble.

Audiophiles on a budget prioritize accurate sound reproduction and excellent noise isolation.


  • Excellent passive noise isolation
  • Accurate and detailed sound
  • Various eartip options for a secure fit
  • Relatively inexpensive compared to other high-isolation options


  • Deep insertion design
  • Slightly bright sound signature

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Does the IEM have sound leakage?

IEM That Don't Leak Sound

In general, vented or open IEMs can leak more sound than non-vented or closed IEMs. It also depends on the volume level you play at and the eartips.

Foam tips generally provide better isolation than silicone tips. Additionally, custom IEMs tend to offer better passive isolation than universal IEMs, although some universal IEMs.


IEMs are a great, discreet way to listen to music or audio without annoying those around you.

If you will be using your earpieces in public, making sure the accessories are sealed using appropriate noise-isolating tips will ensure a pleasant listening experience.

Also read: XINHS Cable Review: Is Xinhs a Good Brand?

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