--- product_id: 212870877 title: "Etymotic ER Series 2.5mm Balanced Cable, Black" brand: "etymotic research" price: "S/.607" currency: PEN in_stock: true reviews_count: 10 category: "Etymotic Research" url: https://www.desertcart.pe/products/212870877-etymotic-er-series-2-5mm-balanced-cable-black store_origin: PE region: Peru --- # Discrete signal paths for noise-free sound 2.5mm balanced audio for superior clarity MMCX connector with secure locking key Etymotic ER Series 2.5mm Balanced Cable, Black **Brand:** etymotic research **Price:** S/.607 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your sound game with precision-balanced clarity! ## Quick Answers - **What is this?** Etymotic ER Series 2.5mm Balanced Cable, Black by etymotic research - **How much does it cost?** S/.607 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/212870877-etymotic-er-series-2-5mm-balanced-cable-black) ## Best For - etymotic research enthusiasts ## Why This Product - Trusted etymotic research brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek, Durable Design:** Black finish combines style and resilience for everyday professional use. - • **Optimized for High-End Gear:** Unlock the full potential of your digital audio player or headphone amp supporting 2.5mm balanced output. - • **Secure MMCX Locking Connector:** Stay worry-free with a cable that locks firmly in place, protecting your investment. - • **Universal Etymotic ER Compatibility:** Seamlessly upgrade any ER series earphones with MMCX connectors. - • **Audiophile-Grade Balanced Connection:** Experience crystal-clear sound with discrete left and right signals. ## Overview The Etymotic ER Series 2.5mm Balanced Cable is a premium upgrade cable designed for Etymotic ER earphones with MMCX connectors. Featuring a secure locking key and discrete left/right signal paths, it delivers superior audio clarity when paired with compatible digital audio players or headphone amplifiers supporting 2.5mm balanced output. ## Description The Etymotic black 2.5mm balanced cable is a cable upgrade for the entire Etymotic ER Earphone Series that utilizes an MMCX connector with a special “key” that helps lock the cable in place and protects the integrity of the connector. Review: Worth it - A good upgrade. Lets the headphone amp output at full power. Also, seems more robust that the regular cable and less likely to get tangled. Review: Improvement over stock cable - The cable is an audible improvement over the standard 3.5mm one that comes with earphones - this was clear the moment I started using it. My player is a high resolution music player. ## Features - 2.5mm Balanced Cable - Each side of the earphone pair will get a discrete signal from the player or headphone amplifier you are using - Compatible with all Etymotic ER series earphones that have the MMCX connector - Please note that you will need a special Digital Audio Player or headphone amp that supports the 2.5mm balanced protocol in order to take full advantage of the Etymotic balanced cable ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QRF4QFW | | Best Sellers Rank | #210,075 in Electronics ( See Top 100 in Electronics ) #1,075 in Headphone Extension Cords | | Brand | Etymotic | | Cable Type | Balanced | | Color | Black | | Compatible Devices | Headphone | | Compatible Phone Models | Apple iPhone XR | | Connector Gender | Male-to-Male | | Connector Type | 2.5mm Balanced | | Date First Available | April 11, 2019 | | Indoor/Outdoor Usage | Indoor, Outdoor | | Item Weight | 1.12 ounces | | Item model number | OO1005 | | Manufacturer | Etymotic Research | | Model Name | OO1005 | | Number of Items | 1 | | Number of Pins | 3 | | Recommended Uses For Product | Audio | | Shape | Round | | Special Feature | Lightweight | | UPC | 846430002234 | | Unit Count | 1 Count | ## Product Details - **Brand:** Etymotic Research - **Connector type:** 2.5mm Balanced - **Cable type:** Balanced - **Compatible devices:** Headphone - **Special feature:** Lightweight ## Images ![Etymotic ER Series 2.5mm Balanced Cable, Black - Image 1](https://m.media-amazon.com/images/I/515svqSBa3L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worth it *by A***L on 26 August 2025* A good upgrade. Lets the headphone amp output at full power. Also, seems more robust that the regular cable and less likely to get tangled. ### ⭐⭐⭐⭐⭐ Improvement over stock cable *by M***S on 25 January 2025* The cable is an audible improvement over the standard 3.5mm one that comes with earphones - this was clear the moment I started using it. My player is a high resolution music player. ### ⭐⭐⭐⭐⭐ Makes A Noticeable Improvement! *by ✅***R on 19 July 2024* Compared to the 3.5mm cable the balanced 2.5mm cable has a noticeable improvement to audio quality when powered from a decent amp (on Etymotic ER4SRs). I was able to test using an identical setup as my amp supports both 3.5 & 2.5 output therefore the only change was the cable. Very happy with my purchase. ## Frequently Bought Together - Etymotic Research ER Series 2.5mm Balanced Cable, Black, Wired - Etymotic Research Tuning Kit for ER Series Earphone with 5 Different Filters (ER-DAMPER5PACK) - Etymotic Research Er4Sr Studio Reference Precision Matched In-Ear Earphones (Detachable Balanced Armature Drivers, Noise Isolating, High Fidelity, World Leader Response Accuracy), Wired --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/212870877-etymotic-er-series-2-5mm-balanced-cable-black](https://www.desertcart.pe/products/212870877-etymotic-er-series-2-5mm-balanced-cable-black) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-04-23*