Updated 14 May 2026
| Brand | Etymotic |
| Category | Musical Instruments |
| Available at | 1 UK stores |
| 90-day avg | £314.00 |
Etymotic
Etymotic ER4-XR Earphones Extended Response
£314.00Fair Price
Cheapest at Gear4music · 1 store
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PRICE HISTORY
Current
£310
Change
+11.5%
Avg
£299
Low
£276
High
£323
Volatility
3.4%
PRODUCT DESCRIPTION
- In The Box Earphones Standard eartips Large earips Foam eartips 1/4 stereo phone adapter Filter removal tool and replacement filters Storage case Shirt clipStronger Bass The Extender Response version are ideal for any music lover who wants great accuracy with a bit more extra presence in the low-end department. Like the ER4-SRs the ER4-XRs produce the highest accuracy response but offers a moderate bass boost so you can enjoy thick deep pumping bass. Best Noise Isolation Drowning out background noise is no problem. The ER4-XR Earphones offer 35dB - 42dB (98 percent) noise isolation so you can block out the background noise and sit back relax and enjoy your music in peace without needing to listen at dangerously high levels. Amazingly the ER4-XR Earphones are documented as the highest noise isolation of any earphones or headphones on the market today. The ER4-XR Earphones ensure a proper seal which means you are able to listen at lower levels saving your ears. With a proper seal and noise isolation it means you wont need to turn the volume up to compensate for the background noise letting you listen at safer levels. Studio-Grade Accuracy The ER4-XR Earphones produce studio-reference sound providing the highest output sensitivity in its class. Hear the thick pumping bass engaging mids and smooth crystal clear highs with the ER4-XR earphones. They produce the worlds best response accuracy (92 percent) letting you hear everything clearly making them the most accurate in-ear earphones on the market that delivers a flat response across all frequencies. The ER4-XR are the first earphones to feature balanced armature precision-matched custom-tuned drivers that deliver high-definition sound making them ideal for not only listeners but sound engineers and musicians as well. Comfortable & Durable Stay listening to music day in and out. The ER4-XR Earphones feature a reinforced cable for extra durability while the noise-isolating eartips ensure a proper seal and comfort allowing you to wear them for hours without irritation. Included Accessories Etymotic provide you with a range of accessories to get the best out of the ER4-XR Earphones. There are three eartips included providing you with small and large sizes as well as foam tips so you can find the one that is comfortable for you. Conveniently the zippered storage case allows you to protect the earphones when not in use. For DJs there is also a 1/4 stereo phone adapter that allows you to plug into an array of mixers. Features Extended and enhanced bass Engineered for safe sound output High-definition sound quality 92 percent response accuracy 35dB - 42dB noise isolation (98 percent) highest of any earphones or headphones on market today First earphones to completely seal the ears (listen at lower volumes without needing to compensate for background noise) Only earphones with balanced armature precision-matched custom-tuned drivers Highest output sensitivity in its class Professional quality and reliability Precision machined metal bodies with anodized finish Detachable reinforced 5ft cable allows for easy replacement Assortment of noise-isolating eartips to ensure proper seal and comfort User-replaceable filters that protect the balanced armature drivers from ear wax Includes eartips that seal even the smallest earsSpecifications Frequency Response: 20Hz - 16kHz Transducers: High performance balanced armature micro-drivers Noise Isolation: 35 - 42dB Impedance (@1kHz): 45 ohms Sensitivity (@1kHz) SPL at 0.1v: 98dB Maximum Output (SPL): 122dB