--- product_id: 12197768 title: "A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power" brand: "shure" price: "E£ 8777" currency: EGP in_stock: true category: "Shure" url: https://www.desertcart.com.eg/products/12197768-a15as-switchable-attenuator-15-20-25-db-passes-phantom-power store_origin: EG region: Egypt --- # Passes phantom power seamlessly Prevents audio overload & distortion 3-step attenuation (15/20/25 dB) A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power **Brand:** shure **Price:** E£ 8777 **Availability:** ✅ In Stock ## Summary > 🎤 Control your sound, own the stage—without missing a beat. ## Quick Answers - **What is this?** A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power by shure - **How much does it cost?** E£ 8777 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/12197768-a15as-switchable-attenuator-15-20-25-db-passes-phantom-power) ## Best For - shure enthusiasts ## Why This Product - Trusted shure brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Durable:** Sleek stainless steel design fits effortlessly into any pro audio setup, built to last. - • **Overload Protection:** Safeguards your mixer or recorder inputs from high-output mic spikes and distortion. - • **Phantom Power Friendly:** Maintains phantom power to condenser mics without interruption—no compromises on sound quality. - • **Universal Compatibility:** Works flawlessly with low-impedance mics, mixers, and recorders—your all-in-one attenuation solution. - • **Precision Volume Control:** Switch between 15, 20, or 25 dB attenuation for perfect signal balance every time. ## Overview The Shure A15AS is a compact, switchable in-line attenuator offering 15, 20, or 25 dB signal reduction. Designed for professional audio setups, it prevents microphone and line-level overloads while passing phantom power to condenser mics. Built with durable stainless steel and compatible with low-impedance devices, it ensures pristine sound quality in high SPL environments. ## Description The Shure A15AS Switchable In-Line Attenuator reduces the level of any balanced microphone or line-level signal by 15, 20, or 25 db. It is specially suited to reducing the level of a high-output microphone to prevent it from overloading the microphone input of a mixer or recorder in applications with high sound pressure levels. In addition, the A15AS may be used to reduce the level of a line-level mixer output to prevent overloading the aux-level input of a recorder. ## Features - Package Dimensions: 2.032 cms (L) x 2.54 cms (W) x 9.398 cms (H) - Product Type: Microphone - Package Quantity: 1 - Country Of Origin: Mexico ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002J1JKY | | Antenna Location | Karaoke, Singing | | Audible Noise | 25 db | | Audio Sensitivity | 25 db | | Best Sellers Rank | #9,818 in Musical Instruments ( See Top 100 in Musical Instruments ) #3 in Radio Frequency Attenuators #1,261 in Microphone Accessories | | Brand | Shure | | Built-In Media | microphone | | Color | #N/A | | Compatible Devices | Microphones, Audio Mixers, Audio Recorders | | Connectivity Technology | XLR | | Connector Type | 3.5 mm Jack | | Customer Reviews | 4.8 4.8 out of 5 stars (250) | | Enclosure Material | Stainless Steel | | Global Trade Identification Number | 00042406054010 | | Hardware Platform | Karaoke Machine | | Impedance | 150 ohm | | Item Dimensions | 7.9 x 5.5 x 1 inches | | Item Type Name | Instrument Condenser Microphone | | Item Weight | 3.2 ounces | | Manufacturer | Shure | | Mfr Part Number | A15AS | | Microphone Form Factor | Overhead | | Model Name | A15AS | | Model Number | A15AS | | Number of Channels | 1 | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | Corded Electric | | Signal-to-Noise Ratio | 25 db | | Special Feature | Use this balanced-line attenuator to prevent low-impedance microphones (rated at 150 or 600 ohms) and high-output condenser microphones from overloading low impedance inputs in high sound pressure level applications. The values of attenuation can be switch selected for 15, 20, or 25 dB. Use the A15AS with any low-impedance microphone, including phantom-powered condenser microphones, such as the Sh… | | UPC | 042406054010 | | Unit Count | 1 Count | | Warranty Description | 2-year limited warranty. | ## Product Details - **Audio Sensitivity:** 25 db - **Brand:** Shure - **Color:** #N/A - **Compatible Devices:** Microphones, Audio Mixers, Audio Recorders - **Connectivity Technology:** XLR - **Connector Type:** 3.5 mm Jack - **Included Components:** microphone - **Model Name:** A15AS - **Recommended Uses For Product:** Karaoke, Singing ## Images ![A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power - Image 1](https://m.media-amazon.com/images/I/413pzK1z4bL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: I need to reduce signal level from a 2-ch preamp to a 2-ch power amp. How tight a tolerance do these attenuators maintain?** A: You will need two of these...one for left and one for right. The tolerance on Shure equipment is tight and professional in tolerances stated. These will work well places between a preamp output and an amplifier line/aux input. When an input is overdriven with too much signal it will distort at any and all volumes...these units allow the preamp to not overdrive the input stage of the power amplifier so that the power amp starts with a distortion free input signal that it can amplify to the speakers. **Q: Can I use this for echo feed back on microphone** A: the short answer is "no" ummm.... It MIGHT help a little tiny bit, but even if it does help, most humans would not be able to tell. That's not what it's meant for. It's meant specifically to diminish frequencies below 100Hz. Feedback is ALMOST never caused by frequencies below 80hz. In fact, I would actually argue that most feedback is caused exclusively by vocals pushing their own individual signal (or the overall master/bus) over the threshold that allows the mic to "hear itself through the speakers". That means frequencies in the 180ish hertz to 5,000ish hertz(and quite often even higher). Feedback control is more about dynamics and overall volume(particularly on stage), mostly because not many sound engineers or performers care to tune the PA or the room/venue to suppress the resonant frequencies that turn into feedback. Having your main speakers in line with the band/performers/entertainment is also not the most advantageous thing to do for the same reason; the culprit resonant frequencies will start accumulating shortly after your PA is set up. The microphone hears a signal then sends it out through the speakers, which then get picked up through the microphone again, and then back out through speakers. If you have feedback problems, this device MIGHT clean up your overall sound a bit, but will not eliminate feedback. If you want to rid yourself of feedback you should consider; tuning the room/venue with sound absorption, moving your mics closer to their source, having a quiet stage(in ear monitors), or spend lots of money on real nice and smooth main PA speakers and spend decent amounts of time on their placement in that room/venue. Hope that helps. **Q: do i need 2 of these if hooking up to h4n? if not, won't it only record 1 sided?** A: Short answer would be yes you would need two of these for a full stereo BUT you could use just one of these and then a y cable to feed the or source the one mono signal to both stereo channels so then if you really did not need stereo then one of these and a y cable will yield two channels with same mono audio on each of the two channels and that may be completely acceptable audio as it will sound fine but not be true stereo but will be audio on both channels...Gordon **Q: Will this attenuator cut a line level signal from a consumer device (like a Roku player...-10dB?) to be used as mic level input on a pro mixer?** A: I believe it'll solve your problem. I am using it to feed the line level input from a Shure wireless mic receiver (line out) to the mic inputs on a Zoom recorder. The line-to-mic feed I've described works like a charm with this adapter. I have a pair of them. Best regards, Bill ## Frequently Bought Together - Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power - Cable Matters 3.5mm to XLR Cable - 6ft, Male to Male XLR to 1/8 Inch Cable, Compatible with iPod, MP3 Player, Laptop, Voice Recorder, and More, Black – Not for Microphone Use - CableCreation [5-Pair XLR Female to Female & XLR Male to Male 3PIN Adapter Connector Compatible Microphone,Mixer,Silver --- ## 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.com.eg/products/12197768-a15as-switchable-attenuator-15-20-25-db-passes-phantom-power](https://www.desertcart.com.eg/products/12197768-a15as-switchable-attenuator-15-20-25-db-passes-phantom-power) --- *Product available on Desertcart Egypt* *Store origin: EG* *Last updated: 2026-08-18*