Description
The Etymotic ER3SE Studio Edition High-Sensitivity In-Ear Monitors is a high-sensitivity, single-driver in-ear monitor engineered for sound professionals, musicians, and audiophiles who value precision and detail. Designed for portability, the ER3SE can be powered directly from any smartphone, laptop, or portable audio player without the need for an external amplifier.
Built with anodized aluminum shells and CNC-machined to extremely tight tolerances, these earphones deliver durability and acoustic accuracy in a sleek, compact design. Using a single Balanced Armature (BA) driver eliminates the need for crossovers, ensuring consistent and distortion-free sound reproduction. The result is a true-to-source listening experience ideal for studio monitoring, mixing, or critical listening.
The ER3SE offers class-leading passive noise isolation ranging from 35–42 dB, depending on eartip selection and fit. For reference, most custom IEMs provide about 25–28 dB of isolation, while standard foam earplugs offer up to 32 dB. This superior isolation ensures a distraction-free environment, whether you’re recording in the studio or listening on the go.
The user-replaceable detachable cable enhances longevity and convenience, making the ER3SE a practical choice for professionals on a budget who demand high performance and reliability.
When compared to the ER3XR, the ER3SE delivers a flat, reference-grade frequency response-perfect for creators and engineers seeking accuracy. The ER3XR, on the other hand, provides a tastefully boosted low end, adding 1–2 dB to the mid-bass and 3–4 dB to the sub-bass for a more energetic listening experience. Apart from bass tuning, both models are nearly identical, allowing you to choose between neutrality (ER3SE) or enhanced warmth (ER3XR).
Etymotic’s target frequency response is designed for a “perceptibly flat” sound signature, compensating for the natural resonance of the human ear canal. By slightly boosting frequencies in the 2–5 kHz range, the ER3SE ensures that sound reaching your eardrum matches the tonality of a live performance. This tuning philosophy, refined over decades of hearing research, differs from the Harman curve and emphasizes accurate ear-level perception.
Ultimately, the ER3SE is crafted for listeners who want to experience music exactly as it was recorded-uncolored, detailed, and lifelike. Its compact design, replaceable cable, and exceptional isolation make it a professional-grade tool for engineers, musicians, and discerning music lovers alike.
Product Specifications:
Driver Type: Single Balanced Armature
Frequency Response: 20 Hz – 16 kHz
Impedance: 22 ohms
Sensitivity: 102 dB SPL
Cable: Detachable, user-replaceable
Connector: 3.5 mm stereo plug
Noise Isolation: 35-42 dB (depending on eartips)
Product Weight: 0.3 lbs.
Shipping Weight: 1 lb.
Shipping Dimensions (L x W x H): 7 x 4 x 2"
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