---
product_id: 12197768
title: "Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power"
brand: "shure"
price: "₨39052"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/12197768-shure-a15as-switchable-attenuator-15-20-25-db-passes-phantom
store_origin: LK
region: Sri Lanka
---

# Phantom Power Compatible Compact Size Switchable Attenuation Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power

**Brand:** shure
**Price:** ₨39052
**Availability:** ✅ In Stock

## Summary

> 🎤 Elevate Your Sound Game!

## Quick Answers

- **What is this?** Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power by shure
- **How much does it cost?** ₨39052 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/12197768-shure-a15as-switchable-attenuator-15-20-25-db-passes-phantom)

## 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 Design:** Sleek dimensions (2.032 x 2.54 x 9.398 cm) for seamless integration into any setup.
- • **Made in Mexico:** Crafted with care, ensuring top-notch quality and performance.
- • **Phantom Power Ready:** Passes phantom power, ensuring compatibility with a wide range of microphones.
- • **Professional Quality:** Engineered for audio professionals who demand precision and reliability.
- • **Versatile Attenuation:** Easily switch between 15, 20, and 25 dB to suit your audio needs.

## Overview

The Shure A15AS Switchable Attenuator is a compact and versatile audio tool designed for professionals. With the ability to switch between 15, 20, and 25 dB attenuation levels, it ensures optimal sound quality while passing phantom power, making it an essential addition to any microphone setup.

## Description

Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power

## 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

## Product Details

- **Operation Mode:** ON-OFF
- **Contact Type:** Normally Closed
- **Connector Type:** 3.5 Mm Jack
- **Brand:** Shure
- **Terminal:** Physical
- **Item dimensions L x W x H:** 7.9 x 5.5 x 1 inches
- **Circuit Type:** parallel
- **Actuator Type:** Hinge Lever
- **Contact Material:** Copper
- **International Protection Rating:** IP00

## Images

![Shure A15AS Switchable Attenuator (15, 20, 25 dB), Passes Phantom Power - Image 1](https://m.media-amazon.com/images/I/51rLL91EUYL.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.lk/products/12197768-shure-a15as-switchable-attenuator-15-20-25-db-passes-phantom](https://www.desertcart.lk/products/12197768-shure-a15as-switchable-attenuator-15-20-25-db-passes-phantom)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-03*