Description
Enjoy the true sound of music with the Sennheiser IE 900. This IEM features 7mm TrueResponse drivers with the new XR3 technology for brilliant treble, powerful lows and clear mids. The high-quality build is designed to last and fit comfortably.
Hear Every Detail
Experience the finest nuance in your music with the Sennheiser IE 900. And, it’s not just the tonality of each instrument that is clearly audible, but also the acoustic properties of the room. Immerse yourself in a vast soundstage without any distracting peaks or troughs. An acoustic back volume – a small chamber within another chamber – is used to manage the slope and amplitude of the bass lift. It controls the overall volume and direction of the air as it moves through the driver unit. The end result: Disciplined bass with uncoloured mids.
Built for Brilliance
With the IE 900, Sennheiser has left no stone unturned. The German designed and engineered 7mm TrueResponse transducers offer brilliant treble, powerful lows and clear mids. The drivers are well-tuned to avoid sibilance and overpowering any one frequency. The warmth only adds that much-needed life to your music. The combination of a variety of acoustic materials in the diaphragm ensures a precise transient response and detailed audio experience.
Designed for Pure Sound
The new XR3 technology uses a system of 3 Helmholtz resonators. These are milled right into the solid aluminium housing. The tiny channels in this system prevent resonance peaks that colour the sound. A vortex structure in the nozzle swirls acoustic energy in the frequency bands to smoothen unwanted peaks. Together, these high-end technologies deliver incredible balance and transparency to your music.
Precise Build for Precise Sound
The Sennheiser IE 900 does not shy away from making a statement with its high-class housings. Each one has been cut from a single block of aluminium using 5-axis CNC machined precision. This enhances the electro-acoustic components of the IEM. Once anodized, it is highly resistant to wear and corrosion. The end result? A work of pure art.
IEMs that Fit Seamlessly
Working musicians require IEMs that fit well. And, we took inspiration from this and translated it into IE 900’s form factor. Silicone ear adapters and elastic foam ear adapter sets in three different sizes adapt to the natural shape of your ear for a tailored fit. It does away with uncomfortable sibilance or resonance, letting you enjoy your music just the way the artist intended.
The Perfect Connection
Apart from its sonic properties, a great IEM also offers unmatched durability and reliability. The recessed, 4.8mm-wide MMCX sockets ensure outstanding strain relief. The para-aramid reinforced cable is rated for thousands of bend cycles and terminates with gold-plated Fidelity + MMCX cable connectors on one end and a 3.5mm stereo plug on the other. For audio lovers looking to plug their IEMs into hi-fi audio devices, the IE 900 also comes with symmetrical 2.5mm and 4.4mm cables. The serialised case keeps it safe when on the go.
Sennheiser IE 900 Review:
Model No: IE 900
Wearing Style: In-Ear
Earpiece Connection: Wired
Bluetooth Version: NA
No. of Drivers: 1
Driver Type: Single Dynamic Driver
Driver Size: 7mm
Weight: 4gm
Sound pressure level (SPL): 123 DB (1 KHz, 1 Vrms)
Impedance: 16ohm
Frequency Response: 5 Hz – 48,000 Hz (-10 DB)
Maximum Power Handling: NA
Sensitivity: 123 DB (1 KHz, 1 Vrms)
Codecs: NA
Active Noise Cancellation: NA
Volume Control Function: NA
Microphone: NA
Play Time: NA
Additional Runtime: NA
Battery Capacity: NA
Charging Interface: NA
Audio Jack Size: 2.5 mm
3.5 mm
4.4 mm
Cable Length: 1.25 m
Cable Detachable: YES
Connector: Fidelity (+) MMCX
Water Resistance: NA
Warranty Period: 2 Year
In The Box
1U IE 900 in-ear headphones
1U Balanced para-aramid reinforced cable with 2.5mm connector
1U Unbalanced para-aramid reinforced cable with 3.5mm connector
1U Balanced para-aramid reinforced cable with 4.4mm connector
3 pairs of silicone ear adapters (S, M, L)
3 pairs of foam ear adapters (S, M, L)
1U Premium carry case with metal serial no. plate
1U Cable clip, Cleaning tool & Cleaning cloth
1U Presentation box with signed customer certificate & User manuals
Warranty Period: 2 Year from the date of Invoice
Covered: Manufacturing Defects Only
Website: https://en-in.sennheiser.com/service-support-contact-service-centers-in-india
Contact No: 1800 22 36 32
Email Id: in-info@sennheiser.com
Sennheiser is a well-known brand in the audio industry. They offer a wide range of products catering to both audiophiles and casual listeners. Their products include open back and closed back audiophile headphones, in-ear monitors, ANC headphones, and true wireless earbuds. They are known for their exceptional sound quality and durability. Whether you're a professional musician or just a music enthusiast, Sennheiser has something for everyone.
I didn't expect this kind of sound from this tiny device. Unboxing was underwhelming compared to fiio iems. The tips are okay if you put it correctly. They need to be put very lightly inside ear canal, not too deep, otherwise the tip will collapse and won't sound good. Sound is more detailed than anything I've ever heard. It doesn't sound fatiguing at all. Like i said, it sounds smooth. The azla sednafit light is the tip to go for. I've tried the spinfit cp100+ as well, but the sednafit light sounds the best. Thanks to mr pritam for helping me get the perfect iem for my taste.
Kudos to Pritam sir for the recommendation. A well balanced IEM with a high degree of musicality. My favourite IEM for when I simply want to lose myself in the music and enjoy the show.
Amazing what can be achieved with a single driver.
No Words for me to say about this IE 900 IEM. Even if I say more it will be very less. That much perfection in sound.
Firstly, I thank my new friend Pritam ( The Audio Store Co-Founder ). He helped me by asking about my taste in music and came up with the best for me. He was a polite person who never tried to sell anything until customer requirement needs it. Very honest in delivering the Info. Thank You, my friend, for the best recommendation.
IE 900 Wherever you search for review it will 9.9 Rating or 9.5 from Audiophiles. Any website or Video everyone says is the best. It is exactly the same as mentioned on sound.
Sennheiser has come with their experience on this IE 900 IEM. They are very well built material Aluminum when you put them in-ears feels like nothing was there. Such a good comfortable if you carry on your hands feel noting weight. The first impression of me was comfort.
Then I started playing with Iphoine 12 + 3.5 Jack + Apple Dongle Jack. It's a very simple setup not used any Dac/Amp then I started playing Dangreos By MJ. I can't really explain my experience with the first impression.
The instrumental part was Awsome!! Drums have kick bass. Guitar strings will make you simple :) Sound Stage will be like Auditorium. Vocals are a blessing Gift for this IEM. The bass is mindblowing and you keep repeating the song for that kick and experience.
You play anything it sounds exactly the same as how the musician thought to deliver the end of the listeners. That all will be delivered without any other expensive AMP DAC. That's the beauty of IE 900.
The big joke is it's a 7 MM Driver don't how they designed this IEM. It can be done only with the experience of 75 Years as a sound engineer like Sennheiser.
Great Job by Sennheiser Team. I really bow for their work.


Description
Enjoy the true sound of music with the Sennheiser IE 900. This IEM features 7mm TrueResponse drivers with the new XR3 technology for brilliant treble, powerful lows and clear mids. The high-quality build is designed to last and fit comfortably.
Hear Every Detail
Experience the finest nuance in your music with the Sennheiser IE 900. And, it’s not just the tonality of each instrument that is clearly audible, but also the acoustic properties of the room. Immerse yourself in a vast soundstage without any distracting peaks or troughs. An acoustic back volume – a small chamber within another chamber – is used to manage the slope and amplitude of the bass lift. It controls the overall volume and direction of the air as it moves through the driver unit. The end result: Disciplined bass with uncoloured mids.
Built for Brilliance
With the IE 900, Sennheiser has left no stone unturned. The German designed and engineered 7mm TrueResponse transducers offer brilliant treble, powerful lows and clear mids. The drivers are well-tuned to avoid sibilance and overpowering any one frequency. The warmth only adds that much-needed life to your music. The combination of a variety of acoustic materials in the diaphragm ensures a precise transient response and detailed audio experience.
Designed for Pure Sound
The new XR3 technology uses a system of 3 Helmholtz resonators. These are milled right into the solid aluminium housing. The tiny channels in this system prevent resonance peaks that colour the sound. A vortex structure in the nozzle swirls acoustic energy in the frequency bands to smoothen unwanted peaks. Together, these high-end technologies deliver incredible balance and transparency to your music.
Precise Build for Precise Sound
The Sennheiser IE 900 does not shy away from making a statement with its high-class housings. Each one has been cut from a single block of aluminium using 5-axis CNC machined precision. This enhances the electro-acoustic components of the IEM. Once anodized, it is highly resistant to wear and corrosion. The end result? A work of pure art.
IEMs that Fit Seamlessly
Working musicians require IEMs that fit well. And, we took inspiration from this and translated it into IE 900’s form factor. Silicone ear adapters and elastic foam ear adapter sets in three different sizes adapt to the natural shape of your ear for a tailored fit. It does away with uncomfortable sibilance or resonance, letting you enjoy your music just the way the artist intended.
The Perfect Connection
Apart from its sonic properties, a great IEM also offers unmatched durability and reliability. The recessed, 4.8mm-wide MMCX sockets ensure outstanding strain relief. The para-aramid reinforced cable is rated for thousands of bend cycles and terminates with gold-plated Fidelity + MMCX cable connectors on one end and a 3.5mm stereo plug on the other. For audio lovers looking to plug their IEMs into hi-fi audio devices, the IE 900 also comes with symmetrical 2.5mm and 4.4mm cables. The serialised case keeps it safe when on the go.
Sennheiser IE 900 Review:
Model No: IE 900
Wearing Style: In-Ear
Earpiece Connection: Wired
Bluetooth Version: NA
No. of Drivers: 1
Driver Type: Single Dynamic Driver
Driver Size: 7mm
Weight: 4gm
Sound pressure level (SPL): 123 DB (1 KHz, 1 Vrms)
Impedance: 16ohm
Frequency Response: 5 Hz – 48,000 Hz (-10 DB)
Maximum Power Handling: NA
Sensitivity: 123 DB (1 KHz, 1 Vrms)
Codecs: NA
Active Noise Cancellation: NA
Volume Control Function: NA
Microphone: NA
Play Time: NA
Additional Runtime: NA
Battery Capacity: NA
Charging Interface: NA
Audio Jack Size: 2.5 mm
3.5 mm
4.4 mm
Cable Length: 1.25 m
Cable Detachable: YES
Connector: Fidelity (+) MMCX
Water Resistance: NA
Warranty Period: 2 Year
In The Box
1U IE 900 in-ear headphones
1U Balanced para-aramid reinforced cable with 2.5mm connector
1U Unbalanced para-aramid reinforced cable with 3.5mm connector
1U Balanced para-aramid reinforced cable with 4.4mm connector
3 pairs of silicone ear adapters (S, M, L)
3 pairs of foam ear adapters (S, M, L)
1U Premium carry case with metal serial no. plate
1U Cable clip, Cleaning tool & Cleaning cloth
1U Presentation box with signed customer certificate & User manuals
Warranty Period: 2 Year from the date of Invoice
Covered: Manufacturing Defects Only
Website: https://en-in.sennheiser.com/service-support-contact-service-centers-in-india
Contact No: 1800 22 36 32
Email Id: in-info@sennheiser.com
Sennheiser is a well-known brand in the audio industry. They offer a wide range of products catering to both audiophiles and casual listeners. Their products include open back and closed back audiophile headphones, in-ear monitors, ANC headphones, and true wireless earbuds. They are known for their exceptional sound quality and durability. Whether you're a professional musician or just a music enthusiast, Sennheiser has something for everyone.
I didn't expect this kind of sound from this tiny device. Unboxing was underwhelming compared to fiio iems. The tips are okay if you put it correctly. They need to be put very lightly inside ear canal, not too deep, otherwise the tip will collapse and won't sound good. Sound is more detailed than anything I've ever heard. It doesn't sound fatiguing at all. Like i said, it sounds smooth. The azla sednafit light is the tip to go for. I've tried the spinfit cp100+ as well, but the sednafit light sounds the best. Thanks to mr pritam for helping me get the perfect iem for my taste.
Kudos to Pritam sir for the recommendation. A well balanced IEM with a high degree of musicality. My favourite IEM for when I simply want to lose myself in the music and enjoy the show.
Amazing what can be achieved with a single driver.
No Words for me to say about this IE 900 IEM. Even if I say more it will be very less. That much perfection in sound.
Firstly, I thank my new friend Pritam ( The Audio Store Co-Founder ). He helped me by asking about my taste in music and came up with the best for me. He was a polite person who never tried to sell anything until customer requirement needs it. Very honest in delivering the Info. Thank You, my friend, for the best recommendation.
IE 900 Wherever you search for review it will 9.9 Rating or 9.5 from Audiophiles. Any website or Video everyone says is the best. It is exactly the same as mentioned on sound.
Sennheiser has come with their experience on this IE 900 IEM. They are very well built material Aluminum when you put them in-ears feels like nothing was there. Such a good comfortable if you carry on your hands feel noting weight. The first impression of me was comfort.
Then I started playing with Iphoine 12 + 3.5 Jack + Apple Dongle Jack. It's a very simple setup not used any Dac/Amp then I started playing Dangreos By MJ. I can't really explain my experience with the first impression.
The instrumental part was Awsome!! Drums have kick bass. Guitar strings will make you simple :) Sound Stage will be like Auditorium. Vocals are a blessing Gift for this IEM. The bass is mindblowing and you keep repeating the song for that kick and experience.
You play anything it sounds exactly the same as how the musician thought to deliver the end of the listeners. That all will be delivered without any other expensive AMP DAC. That's the beauty of IE 900.
The big joke is it's a 7 MM Driver don't how they designed this IEM. It can be done only with the experience of 75 Years as a sound engineer like Sennheiser.
Great Job by Sennheiser Team. I really bow for their work.

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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
View allTRUSTED BY OVER 35K+ MUSIC ENTHUSIAST
Let customers speak for us
from 4822 reviews
Time Spent with this DAP is more than 50 days, used many IEMs from Budget range to high end.
OBSERVATION & EXPERIENCE SO FAR.
- Wide soundstage, it's creating a spacious listening experience.
- Smooth and refined sound, with good bass & trebles. I liked it.
- little high Volume doesn't hurt ears because of spaciousness which this DAP creates.
- Main unique point is Vocals & Instruments separation, it's best.
- So far, I noticed Battery back up is really good. Will check it over time and provide feedback.
- Does not get warm that too after using for hours.
- Best software & Shanling Music app, it's very fast ( I use 1TB fully loaded Micro SD card.)
Please Note - Little more care is needed while handling as it has Glass tubes. Again it's unique offering & tubes makes music more enjoyable.
CONS-
1. Charging time ( it will get solve by software updates in future, Brand has co
nfirmed it in their post)
2. Only one colour option is available from Brand.
3. Some settings currently not present, Brand may add in future updates ( DSD gain Compensation, PEQ, MSEB, Night light short cut in quick pannel)
CONCLUSION-
a. Highly recommend those who want detailed & immersive experience.
b. THREE IN ONE- One DAP but three modes, all three sounds differently. One mode Transistor (without Tubes) and two Tube modes (Triode & Ultra- linear).

Sterdy & beautiful cable. I am using it with Hidiz MP145 Planner Magnetic IEM. It add details to music over stock cable. Makes all aspect of sound quality better.

I am writing review after One month regularly uses with my two DAP - Shanling M8t, Hiby R4.
POSITIVES-
1. Best Soundstage
2. Balanced sound
3. Musical & Makes music more enjoyable to ears.
4. No fatigue despite of metal construct.
5. Weight distribution is really good.
6. Largest Magnetic planner in the Category.
7. Details & instruments separation at best.
CONS-
1. Small ears may face challenge. Plz contact team ATS before purchase. Normal ear size, No issues with fit & long usage.
2. Stock cable is good but doesn't suit this IEM.
I am using this with Divinus Auram cable, which goes really well with this by appearance as well as by performance.
CONCLUSION-
1. Very very happy with the purchase. It's my main IEM in daily music journey.
2. My suggestion is Music enthusiast must have atleast one 'Planner Magnetic IEM', believe me I found that the the songs which I am listening since decades are sounding differently with some more details with this IEM.

The KZ Castor is an excellent choice for budget audiophiles. It delivers superb sound quality that rivals much more expensive headphones, with clear highs, rich mids, and deep bass. The build quality is solid, offering both durability and comfort for long listening sessions. At its price, it’s a fantastic value, outperforming many premium options. Highly recommended!

i think it's a great choice for someone who's just starting with the "iem" audiophile thing and it sounds good pretty good for the price range, it's sound clear and crisp, the bass is a little on the lower side but nonetheless great product if you are just starting, oh and yes the delivery was fast got it in a day.

Delivery was fast and item received was in good condition

Lets get to the point, its the best budget IEM!
I have been in the IEM space for more than 6 months and I was looking for a daily driver that can handle rough use, and then Pritam Sir suggested me 7Hz G1. And it failed to disappoint me!
A nice high quality well built iem, with one of the best ergonomic design, and a proper sound isolation with tons of tip to choose from.
The iem is well tuned with proper instrument seperation and clarity, warm tuning with perfect bass and excellent soundstage compared to other budget IEMs.
If you are new to yo IEM and want to buy your first IEM, blindly go with this! Trust me you would not regret! For 3.2k, its a steal deal!
(Pro Tip: Always listen to Pritam Sir's suggestions. He is the G.O.A.T)

We had an amazing experience at The Audio Store. Pritam, the shop expert, was incredibly helpful and knowledgeable. He patiently guided us through the world of in-ear monitors, explaining all the details and helping us understand what would work best for our band, Rhythm Freak. He suggested options that perfectly matched both our budget and our musical needs, making sure we got the best value without compromising on quality. Thanks to his expertise, we walked out confident and satisfied with our purchase. Highly recommend this store to any musician looking for top-notch gear and excellent service

Sound quality ausom but not for base lover's

Top notch earphone Mike quality 🔥.gaming, music etc highly recommend ❤️🎧

I believe this is the best tws under 10000 rupees also it is an iem

Thank you audio store. The sound is amazing. It was delivered within time and product was perfect.

Very detail iem for the price not bass heavy

It is compact and yet have a good punch to the output it gives, the packaging was very impressive for the price.

Twilight from Soft Ears seems to me like a benchmark for single DD IEMs. The solid metal craftsmanship is commendable and when it comes to the sound, tonality, song signature and quality is presently benchmark for Single DD IEMs, may be rivalled by the Elder turii ti, which cost 3x of this.