---
product_id: 4372097
title: "Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch"
brand: "shure"
price: "AR$288645"
currency: ARS
in_stock: false
reviews_count: 13
url: https://www.desertcart.com.ar/products/4372097-shure-545sd-lc-cardioid-dynamic-high-or-low-z-on
store_origin: AR
region: Argentina
---

# Dual-impedance for versatile use Uniform cardioid pattern minimizes feedback Silent magnetic reed on/off switch Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch

**Brand:** shure
**Price:** AR$288645
**Availability:** ❌ Out of Stock

## Summary

> 🎙️ Own the stage with the mic that defined a generation!

## Quick Answers

- **What is this?** Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch by shure
- **How much does it cost?** AR$288645 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/4372097-shure-545sd-lc-cardioid-dynamic-high-or-low-z-on)

## 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

- • **Feedback-Free Cardioid Pickup:** Exceptional uniform cardioid pattern keeps your sound crisp and feedback-free.
- • **Silent On/Off Switch with Lock:** Magnetic reed switch ensures noiseless toggling with a secure lock option.
- • **Versatile Dual-Impedance Operation:** Seamlessly switch between high and low impedance for studio or live settings.
- • **Classic Retro Design, Modern Reliability:** Iconic chrome styling that’s stood the test of 60+ years with rugged metal build.
- • **Optimized for Voice & Instrument Clarity:** Smooth frequency response and humbucking coil deliver pristine audio in any environment.

## Overview

The Shure 545SD-LC is a dynamic, dual-impedance cardioid microphone featuring a silent magnetic reed on/off switch with lock, designed for instrument pickup and public address. Renowned as the predecessor to the legendary SM57, it offers exceptional feedback rejection, rugged metal construction, and a smooth frequency response optimized for voice and instrument clarity. Perfect for professionals seeking vintage style with modern performance.

## Description

View larger View larger Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch Classic Unidyne instrument mic features selectable dual-impedance operation with a silent on/off switch. Description The Model 545SD is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, it features a silent magnetic reed on/off switch. The Classic Unidyne is a favorite for instrument pickup and recording,and can be used on lecterns for public address systems such as those used in political conventions and legislatures, convention halls, hotels, public auditoriums, stadiums, schools, and churches. Product Details The predecessor to the SM57, the 545SD Classic Unidyne Instrument Microphone is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, the 545SD features a silent magnetic reed on/off switch with lock-on option. A favorite for instrument pickup and recording, the 545SD can also be used on lecterns in public address systems. Features: Optimized performance in voice processing and computer voice recognition applications.Smooth frequency response with excellent fidelity in the voice range.Cardioid pickup pattern and close-talking operation keep unwanted signals and background noise at low levels.Constant output over voice spectrum when close talked.Humbucking coil minimizes undesirable hum effects such as CRT interference.Low-impedance design permits long cable runs in extreme hum fields.Small unobtrusive design does not interfere with CRT visibility.Rugged and reliable for years of consistent operation.

Review: Classic Shure Microphone - I have this and the 565sd. These mics are simply fantastic! They are a bit brighter that the sm57 and sm58, and this is very favorable for those who think those two mics are a bit dull. The classic chrome styling gives this a great retro look that continues to stand the test of time. I mean this mic is basically unchanged for more that 60 years! Congratulations Shure for making such wonderful mics that are still industry standards today. I personally do not care for switches on microphones, but you have the ability to lock these into the on position. Overall, I'm very happy I bought this mic and it will be staying with me from now on.
Review: This microphone is fun for Freddy Mercury fans who want to use the ... - This microphone is fun for Freddy Mercury fans who want to use the mic he was known for using while live. I have been on stage many times with a Shure SM58 and was served well by it, but I wanted a mic with a little less bass while using the proximity effect, and this seems like it did that for me. It is the predecessor to the SM58 and both looks and sounds sort of like it. I wanted this microphone for its very distinctive sound profile and was happy with it. It seems very durable, the switch is well designed and is totally silent in many circumstances, but can be locked into the "on" position. My m-Audio Fast Track Pro digital audio interface was not working well with this mic due to low output causing me to have to raise the gain to a level that caused a lot of background noise. I solved the problem to my satisfaction with a Cloudlifter Mic Activator, which is a preamp that is phantom powered and small enough to tape to a mic stand. I could then lower the gain on the audio interface to get a cleaner sound. After this setup was achieved, I was totally happy with this microphone.

## Features

- Exceptionally uniform cardioid pattern minimizes feedback
- Selectable dual-impedance operation
- Silent magnetic reed on/off switch with lock option
- The predecessor to the SM57
- A favorite for instrument pickup and recording, the 545SD can also be used on lecterns in public address systems
- Includes Shure A25D microphone clip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002JEUSW |
| Batteries | 1 Lithium Ion batteries required. |
| Best Sellers Rank | #12,777 in Musical Instruments ( See Top 100 in Musical Instruments ) #57 in Multipurpose Dynamic Microphones |
| Color Name | silver |
| Customer Reviews | 4.5 4.5 out of 5 stars (235) |
| Date First Available | July 16, 2004 |
| Frequency Response | 20 KHz |
| Global Trade Identification Number | 00042406051873 |
| Hardware Platform | PC |
| Impedance | 150 Ohms |
| Is Discontinued By Manufacturer | No |
| Item Weight | 15.2 ounces |
| Item dimensions L x W x H | 10.1 x 5 x 3.4 inches |
| Item model number | 545SD-LC |
| Manufacturer | Shure |
| Material | Metal |
| Material Type | Metal |
| Microphone Form Factor | Microphone Only |
| Number of Batteries | 1 Lithium Ion batteries required. |
| Number of Channels | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 10.1 x 5 x 3.4 inches |
| Signal-to-Noise Ratio | 78 dB |
| Size | 174.14 cubic inches |
| UPC | 042406051873 |

## Product Details

- **Brand:** Shure
- **Color:** silver
- **Compatible Devices:** Personal Computer
- **Connectivity Technology:** Wired
- **Connector Type:** lc
- **Included Components:** Microphone Clip
- **Model Name:** language _ tag
- **Polar Pattern:** Unidirectional
- **Recommended Uses For Product:** Voice Recording, Video Recording, Speech
- **Special Feature:** Clip

## Images

![Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch - Image 1](https://m.media-amazon.com/images/I/31gtR06SEXL.jpg)
![Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch - Image 2](https://m.media-amazon.com/images/I/41dQJgfulKL.jpg)
![Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch - Image 3](https://m.media-amazon.com/images/I/41izzVax3fL.jpg)
![Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch - Image 4](https://m.media-amazon.com/images/I/51P5B9CBJYL.jpg)
![Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch - Image 5](https://m.media-amazon.com/images/I/51sje9Y84zL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Classic Shure Microphone
*by M***. on May 18, 2025*

I have this and the 565sd. These mics are simply fantastic! They are a bit brighter that the sm57 and sm58, and this is very favorable for those who think those two mics are a bit dull. The classic chrome styling gives this a great retro look that continues to stand the test of time. I mean this mic is basically unchanged for more that 60 years! Congratulations Shure for making such wonderful mics that are still industry standards today. I personally do not care for switches on microphones, but you have the ability to lock these into the on position. Overall, I'm very happy I bought this mic and it will be staying with me from now on.

### ⭐⭐⭐⭐⭐ This microphone is fun for Freddy Mercury fans who want to use the ...
*by J***Y on June 30, 2014*

This microphone is fun for Freddy Mercury fans who want to use the mic he was known for using while live. I have been on stage many times with a Shure SM58 and was served well by it, but I wanted a mic with a little less bass while using the proximity effect, and this seems like it did that for me. It is the predecessor to the SM58 and both looks and sounds sort of like it. I wanted this microphone for its very distinctive sound profile and was happy with it. It seems very durable, the switch is well designed and is totally silent in many circumstances, but can be locked into the "on" position. My m-Audio Fast Track Pro digital audio interface was not working well with this mic due to low output causing me to have to raise the gain to a level that caused a lot of background noise. I solved the problem to my satisfaction with a Cloudlifter Mic Activator, which is a preamp that is phantom powered and small enough to tape to a mic stand. I could then lower the gain on the audio interface to get a cleaner sound. After this setup was achieved, I was totally happy with this microphone.

### ⭐⭐⭐⭐⭐ Classic for a reason
*by R***B on September 8, 2025*

Great microphone. Highly recommended

## Frequently Bought Together

- Shure 545SD-LC Cardioid Dynamic High or Low Z On-Off Switch
- Shure A2WS Locking Microphone Windscreen - Reduces Unwanted Breath and Wind Noise, Black - Compatible with SM57 and 545 Series Mics (A2WS-BLK)
- Shure SM57 Pro XLR Dynamic Microphone - Professional Studio & Live Performance Cardioid Mic for Instruments, Recording for Drums, Percussion, & Instrument Amplifier Miking (SM57-LC)

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---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-01-23*