Etymotic ER4XR Extended Response Single Balanced Armature (1BA) In-Ear Earphone

Description Technical Specifications Shipping Reviews ER4XR is the highest-performing single driver in-ear monitor. The IEM shells are made of anodized aluminum, CNC machined with extremely tight tolerances. Using a single Balanced Armature (BA) driver allows for extremely accurate IEM without the added complexity of crossovers, and helps keep the aluminum body small and slim. The included high-quality user-replaceable cable is reinforced and twisted, to improve longevity and durability. Etymotic IEMs are world renowned for their class-leading passive isolation, providing 35-42 dB attenuation (depending on ear tips used and the depth of insertion). For comparison, most custom IEMs provide approx. 25-28dB attenuation and foam ear plugs attenuate up to 32 dB. The ER4XR is a must-have for audiophiles and consumers, looking for very accurate in-ear monitors with a taste of added bass, for a more “fun” sound signature.   Frequency response graphs and Etymotic’s target: Etymotic’s target frequency response graph represents a “perceptibly flat” frequency response. Our goal is to have a flat frequency response curve when the music notes hit your eardrums. To achieve that, we need to account for the resonance inside the average ear canal, since IEMs bypass the outer ear structure. The result is the need for higher SPL in the 2-5k region (lower treble) for compensating said resonance. That is the reason for the “hump” in that region. The target curve that Etymotic is using for tuning our IEMs differs slightly from the Harmon preference curve. It was developed in-house more than 20 years ago, leveraging on our human hearing expertise and acoustics research.   Accurate Earphone Reproduction When tuning in-ear monitors to accurately reproduce a recording of a live performance, our goal is for the sound hitting the eardrums to be identical to that at the original performance. To achieve this, the acoustic properties of the ear must be factored in. The acoustic resonance and horn effects of the ear change a flat audio signal entering the open ear into sound with a (2700 Hz) high-frequency boost, which is the same response heard at the eardrum in a typical ear. That is the reason for the “hump” in the frequency response graph below, which assures the eardrums perceive a perfectly flat frequency response for all frequencies. Which ER4 is right for you? Both ER4 models, the ER4SR and ER4XR, use the same Balanced Armature (BA) drivers. The only difference is the tuning of the lower (bass) frequencies. The ER4SR, being the “reference” model, is tuned to be as precise and flat as possible. The ER4XR, being the “fun” model, is tuned with added bass. As you can see from the frequency response graphs below, ER4XR adds 1-2dB to the mid-bass frequencies (below 200Hz) and 3-4dB to the lower-bass and sub-bass (below 100Hz). The rest of the frequencies are practically identical. ER4SR is ideal for sound engineers and mixing technicians who must have a precise and accurate sound reproduction across all frequencies. ER4SR is the IEM of choice for audiophiles and consumers who like to listen to their music exactly the way it was recorded. ER4XR with its tastefully added bass is favored by audiophiles and consumers who prefer a little extra bass presence when enjoying their music. This model is not bass heavy by any means. Product Availability Available (current model) Product Type Earphone Style/Type In-Ear Canal Headphone/Earphone Cover Design Closed-back Driver Count (Per Side) 1 Driver Configuration Balanced Armatures (BA) Earphone Connectivity Wired Frequency Response (Hz) 20 Hz - 16 kHz Impedance (Ω) 45 ohms Sensitivity 98 dB @ 1kHz Mic for Calls/Communication None Socket Connector Type MMCX Jack Connector Type 3.5mm (TRS 3-pole) [Single-ended], 6.35mm (TRS 3-pole) [Single-ended] Detachable Cable Yes Cable Length (cm) 152 cm Input Connectivity Options 6.35mm Stereo, 3.5mm Stereo Additional Tech Specs Transducers: Single high-performance balanced armature per channel. Noise Isolation: 35dB using silicone ear tips, 42dB using foam ear tips Maximum Output (SPL): 122 dB Cable: Detachable reinforced, twisted 5 ft with MMCX connectors User Replaceable ACCU-Filters: Yes Colour Black Package Contents Etymotics ER4XR Earphones Detachable, 5 ft. cord with 3.5mm gold plated stereo plug ¼” stereo phone adaptor Eartips: 2 pairs standard 3-flange (1 set installed on the earphones), 2 pairs large 3-flange, and 2 pairs large black foam eartips. Filter removal tool and replacement filters Shirt clip Zippered storage case Performance certificate  Warranty 2 years warranty (local) If you're based in Singapore,  spend $300 or more for free doorstep delivery1.($250 for Silver/Gold/Platinum VIP members) add a few more bucks, for delivery during the night/weekend, or quicker prioritised delivery options2. self-collection is possible at our Showroom, based in Ubi (nearest to MacPherson MRT). Find out where, and how to get to us here. and yes, you may arrange your own 3rd party logistics to pickup your purchases on your behalf. GrabExpress, Lalamove, GoGoX, RydeSEND services are welcome. View additional Terms & Conditions associated to local doorstep delivery service.     Friends from Overseas,  we do ship internationally. shipping fees are calculated according to total gross actual or volumetric weight of all item(s) in cart, whichever higher. shipping fees will vary depending on international carrier(s)3, and will be displayed during checkout. do be aware of additional import tax/VAT that may apply. Important Notice for Customers in the USA Due to recent changes in U.S. trade regulations, additional tariffs are being imposed on products manufactured in China and imported into the United States. As many of our audio products are made in China, orders shipped to U.S. addresses may be subject to an added tariff charge at checkout, reflected as a "U.S. Import Tariff Surcharge". Please note that this surcharge amount is determined by U.S. import policies and may vary significantly depending on product categories and any future policy adjustments. These charges are necessary to ensure compliance with U.S. customs requirements and to allow us to continue serving our U.S. customers reliably. We strongly encourage you to review the total cost at checkout before placing your order.   Important Notice due to ongoing tensions in the Middle East This surcharge is temporary but necessary during this period of significantly increased operational pressure as a result of the ongoing geo‑political situation in the Middle East.Orders shipped to Gulf Cooperation Council (GCC), Africa, US and EU regions may be subject to an added surcharge at checkout, reflected as a "Temporary Emergency Situational Surcharge". Please note that this surcharge amount is determined by our freight partners, and may subject to adjustments according to situational updates. We strongly encourage you to review the total cost at checkout before placing your order.   View additional Terms & Conditions associated to international door to door shipping service.     1 Terms and condition do apply for free delivery. For more information, click here to view.2 View our updated list of local delivery options.3 View our updated list of international carriers. Please login to add review No Reviews Available for this Product Yet. Leave Your Review Description ER4XR is the highest-performing single driver in-ear monitor. The IEM shells are made of anodized aluminum, CNC machined with extremely tight tolerances. Using a single Balanced Armature (BA) driver allows for extremely accurate IEM without the added complexity of crossovers, and helps keep the aluminum body small and slim. The included high-quality user-replaceable cable is reinforced and twisted, to improve longevity and durability. Etymotic IEMs are world renowned for their class-leading passive isolation, providing 35-42 dB attenuation (depending on ear tips used and the depth of insertion). For comparison, most custom IEMs provide approx. 25-28dB attenuation and foam ear plugs attenuate up to 32 dB. The ER4XR is a must-have for audiophiles and consumers, looking for very accurate in-ear monitors with a taste of added bass, for a more “fun” sound signature.   Frequency response graphs and Etymotic’s target: Etymotic’s target frequency response graph represents a “perceptibly flat” frequency response. Our goal is to have a flat frequency response curve when the music notes hit your eardrums. To achieve that, we need to account for the resonance inside the average ear canal, since IEMs bypass the outer ear structure. The result is the need for higher SPL in the 2-5k region (lower treble) for compensating said resonance. That is the reason for the “hump” in that region. The target curve that Etymotic is using for tuning our IEMs differs slightly from the Harmon preference curve. It was developed in-house more than 20 years ago, leveraging on our human hearing expertise and acoustics research.   Accurate Earphone Reproduction When tuning in-ear monitors to accurately reproduce a recording of a live performance, our goal is for the sound hitting the eardrums to be identical to that at the original performance. To achieve this, the acoustic properties of the ear must be factored in. The acoustic resonance and horn effects of the ear change a flat audio signal entering the open ear into sound with a (2700 Hz) high-frequency boost, which is the same response heard at the eardrum in a typical ear. That is the reason for the “hump” in the frequency response graph below, which assures the eardrums perceive a perfectly flat frequency response for all frequencies. Which ER4 is right for you? Both ER4 models, the ER4SR and ER4XR, use the same Balanced Armature (BA) drivers. The only difference is the tuning of the lower (bass) frequencies. The ER4SR, being the “reference” model, is tuned to be as precise and flat as possible. The ER4XR, being the “fun” model, is tuned with added bass. As you can see from the frequency response graphs below, ER4XR adds 1-2dB to the mid-bass frequencies (below 200Hz) and 3-4dB to the lower-bass and sub-bass (below 100Hz). The rest of the frequencies are practically identical. ER4SR is ideal for sound engineers and mixing technicians who must have a precise and accurate sound reproduction across all frequencies. ER4SR is the IEM of choice for audiophiles and consumers who like to listen to their music exactly the way it was recorded. ER4XR with its tastefully added bass is favored by audiophiles and consumers who prefer a little extra bass presence when enjoying their music. This model is not bass heavy by any means. Technical Specifications Product Availability Available (current model) Product Type Earphone Style/Type In-Ear Canal Headphone/Earphone Cover Design Closed-back Driver Count (Per Side) 1 Driver Configuration Balanced Armatures (BA) Earphone Connectivity Wired Frequency Response (Hz) 20 Hz - 16 kHz Impedance (Ω) 45 ohms Sensitivity 98 dB @ 1kHz Mic for Calls/Communication None Socket Connector Type MMCX Jack Connector Type 3.5mm (TRS 3-pole) [Single-ended], 6.35mm (TRS 3-pole) [Single-ended] Detachable Cable Yes Cable Length (cm) 152 cm Input Connectivity Options 6.35mm Stereo, 3.5mm Stereo Additional Tech Specs Transducers: Single high-performance balanced armature per channel. Noise Isolation: 35dB using silicone ear tips, 42dB using foam ear tips Maximum Output (SPL): 122 dB Cable: Detachable reinforced, twisted 5 ft with MMCX connectors User Replaceable ACCU-Filters: Yes Colour Black Package Contents Etymotics ER4XR Earphones Detachable, 5 ft. cord with 3.5mm gold plated stereo plug ¼” stereo phone adaptor Eartips: 2 pairs standard 3-flange (1 set installed on the earphones), 2 pairs large 3-flange, and 2 pairs large black foam eartips. Filter removal tool and replacement filters Shirt clip Zippered storage case Performance certificate  Warranty 2 years warranty (local) Reviews Please login to add review No Reviews Available for this Product Yet. Leave Your Review