About Career Press Home Hearing & Audio Hearables Documentation Contact Mid-range and (Sub)Woofers Homepage > Audio > Mid-range and (Sub)Woofers Mid-range and (Sub)Woofers Multi-driver IEM’s require specialized drivers for low, mid and high frequencies. All of our balanced armature drivers are able to deliver mid-range frequencies, but some do it better than others. Here you’ll find our selection, together with a variety of single and dual armature woofers. Not sure what series to use? Contact us Call us Downloads Application Notes Transducer Handling Receiver Introduction Signal Port Locations Dual Receiver Wiring Other What is BA Technology Designing Earphones Poster: BA Driver Tech Sort A-zReset Type Description Volume (mm³) Sensitivity @500 Hz (dBSPL) RDC (Ohm) 38D1XJ007Mi/8a Extremely powerful subwoofer with Acupass® damped spout, ideal for 3 way systems Datasheet Ask a question 180.3 110 12.5 (parallel) 38DJ007Mi/8a Extremely powerful dual woofer with screen damped spout for 2 way systems Datasheet Ask a question 180.3 121 12.5 (parallel) 38AM007Mi/8a Extremely powerful dual woofer. Plays well below your hearing threshold Datasheet Ask a question 180.3 125 12.5 (parallel) 38AJ007Mi/8a Extremely powerful dual woofer with convenient spout location. Datasheet Ask a question 180.3 125 12.5 (parallel) 37A007 Sealed dual woofer. Plays fast but not loud. A 3300 with a bit more body Datasheet Ask a question 180.3 116* 12.5 (parallel) 36A007/8c Small but powerful woofer, half a 3800 Datasheet Ask a question 90.1 118 25 35A007 Small woofer, fast and precise. Works well as midrange too. Datasheet Ask a question 90.1 108.5* 25 33AJ007i/9 Dual woofer with tuned vent. Emphasis on bass, but still precise. Datasheet Ask a question 180.3 116 12 (parallel) 33AJ007i/8 Vented dual woofer. Warmer, fatter, less defined. Datasheet Ask a question 180.3 122 12 (parallel) 33AJ007i Sealed dual woofer. Precise and accurate. Helps with getting a "flat" sound Datasheet Ask a question 180.3 116 12 (parallel) 31D005/8 Small woofer with a big sound. Vented: less defined, more bass. Datasheet Ask a question 90.1 114.5 24 31A007 Smallest "no compromise" woofer. Accurate and fast. A bit lean. Datasheet Ask a question 90.1 114.5 24 28UAP01 Smooth sounding midrange for more than 3-way CIEM's Datasheet Ask a question 84.2 110* 25 (parallel) 2389D Midrange driver with good HF extension. Ideal for custom 3 way systems. Datasheet Ask a question 160 116 8 2091i Vented version of the 2015. It has a big, woody and powerful sound Datasheet Ask a question 276.3 117.5 11 2015 High headroom and big bass. Used as mid range drivers in some CIEM's Datasheet Ask a question 276.3 115* 20 26A007/9 Small full range with a big bass sound Datasheet Ask a question 41 101.5 40 26A005/8 Full range with emphasis on bass and lower midrange Datasheet Ask a question 41 107 24 26A005 Lean full range, colored frequency response like a tube amplifier Datasheet Ask a question 41 102 24 17A006B/9 Tuned vented driver for single IEM. Warm lows and an aggressive sound Datasheet Ask a question 181.2 107.5 32 17A006 Intelligible and clear sounding driver for single earphone applications Datasheet Ask a question 181.2 107 60 17A003 Intelligible and clear sounding driver for single earphone applications Datasheet Ask a question 181.2 110.5 10.5 Questions about our product line? Sonion is committed to supporting customers with their commercial designs. Let us know what we can do for you. Contact us Find us We have offices all over the world! Contact one of our offices. Check locations Social Follow our Facebook page Follow us on LinkedIn Watch our Youtube demonstrations Hearing Balanced Armature Drivers Microphones NFMI antennas and Coils Bone Conduction Sensors and Actuators RIC Assemblies User Interfaces Connector Systems Legacy Products Audio Balanced Armature Drivers Microphones Full-range Single Drivers Full-range Modules Mid-range and (Sub)Woofers Tweeters Bone Conduction Actuators Wireless Connectivity Sound Dampers About Sonion About Us Management Team & Board Quality Assurance Sonion Terms & Conditions Corporate Social Responsibility Careers Press Privacy & Cookie Policy Terms of Use Contact Contact Us Find Us Worldwide Copyright © Sonion. All Rights Reserved.