Sennheiser IE 900 Audiophile In-Ear Headphones
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Product highlights
In the box
In the box
Free standard shipping
Free standard shipping
*Orders placed before 1 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy
Free Local Pickup
Free Local Pickup
Please call for store stock availability. Requests made before 2:30 PM EST can be available for next-day pickup. Learn more
Sennheiser designed the IE 900 for uncompromising excellence in portable listening. The goal was simple: create in-ear monitors that deliver exceptional sound in any environment, with the clarity and comfort trusted by professionals. A single high-performance driver ensures a pure, uncolored response from 5 Hz to 48 kHz, revealing music exactly as it was intended.
Acoustic Engineering
X3R Absorber Technology with integrated Helmholtz resonators and Vortex acoustic structure milled into the solid aluminum housing, combined with an acoustic back volume system to eliminate resonance peaks, control bass slope and amplitude, improve air movement through the transducer, and deliver a highly transparent, fatigue-free sound signature with precise low-to-midrange separation.
Sound Performance & Driver Technology
Single high-precision 7 mm dynamic driver design chosen over multi-driver systems to avoid phase issues and distortion in overlapping frequency bands, delivering a balanced and transparent audiophile sound with brilliant sparkling treble free of sibilance, powerful controlled bass without muddy mids, high warmth, extreme micro-detail retrieval, and a 'masterpiece revealing itself' level of clarity for high-fidelity recordings.
Performance
Frequency response of 5 Hz - 48,000 Hz, impedance of 18 ohms, and total harmonic distortion of 0.05% (1 kHz, 94 dB), engineered to maintain ultra-low distortion performance and full-range linear response across critical listening frequencies.
Build & Manufacturing Excellence
Designed in Germany and manufactured at a state-of-the-art audiophile facility in Ireland (also producing HD 800S, HD 820, HD 650, and HD 600), featuring precision five-axis CNC-machined housings carved from a single block of aluminum, anodized for corrosion resistance and long-term durability, with individually matched driver pairs to ensure minimal unit variance and consistent acoustic performance.
Connectivity, Durability & Comfort Fit
Gold-plated Fidelity+ MMCX connectors seated in recessed 4.8 mm strain-relief sockets, para-aramid reinforced cables designed for thousands of bend cycles with options for 3.5 mm, 2.5 mm, and 4.4 mm balanced connections, compatibility with headphone amplifiers, laptops, and audio interfaces, included serialized protective case, plus adjustable ear hooks and memory foam ear tips for secure, long-term listening comfort.
| Article Number (SKU) | 508949 |
| Transducer Principle | Dynamic, Extra Wide Band (XWB) |
| Transducer Size | 7 mm |
| Frequency Response (Speaker) | 5 Hz – 48,000 Hz |
| Ear Coupling | In-ear, closed |
| Sound Pressure Level (SPL) | 123 dB (1 kHz, 1 Vrms) |
| Total Harmonic Distortion (THD) | < 0.05% (1 kHz, 94 dB) |
| Cable Length | 1.25 m |
| Connector | Stereo jack plug, gold-plated, MMCX plug |
| Impedance | 16 Ω |
| Attenuation | -10 dB |
Shipping & Returns
Frequently Asked Questions
How do I return an item?
How do I return an item?
Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
Will I receive a full refund when I return an item?
Will I receive a full refund when I return an item?
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges.
How many days do I have to make a return?
How many days do I have to make a return?
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days.
My item was damaged in transit. How do I place a return?
My item was damaged in transit. How do I place a return?
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact support@focuscamera.com with your order number and a description of the damage.
There’s an issue with my order, what should I do?
There’s an issue with my order, what should I do?
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at support@focuscamera.com, or send us a message here.
Can I exchange an item?
Can I exchange an item?
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead.
If I ordered a kit, do I have to return all the items?
If I ordered a kit, do I have to return all the items?
If you ordered a kit, you must return all components and accessories to receive a full refund.
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
I ordered a product that included a free item. I’d like to return it, do I need to return the free item as well?
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund.
Do you offer repairs?
Do you offer repairs?
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900.
What is your return policy?
What is your return policy?
Most items can be returned within 30 days for a full refund. Click here to read our full return policy.
