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Shure UNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone

Item #: 
1274034494368
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The UNIDYNE III Model 545SD is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, the mic features a silent magnetic reed on/off switch. The UNIDYNE I... Click To Read More About This Product

Available 10-10-2017 You will not be charged until order ships. Email me when this is in stock.

Gear returned in mint condition. If you're looking for a virtually new instrument in possibly less-than-perfect packaging, this is a great value.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Gear returned in great condition, with only minor signs of use, such as slight scuffs or pick marks. It looks and plays like new and may be considered an equivalent to display units found in retail stores.
  • Includes 45-Day, No-Hassle Returns
  • Includes full manufacturer's warranty
Price:
$8795.00
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Ship to Store Available in: 3-7 Days (estimated) Salt Lake City, UT (5.9  mi) View More Stores For Availability


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Overview

The UNIDYNE III Model 545SD is a dual-impedance, unidirectional, dynamic microphone. Shipped connected for low-impedance operation, the mic features a silent magnetic reed on/off switch. The UNIDYNE III 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. (545SD-LC Cable not included).

FEATURES

  • Exceptionally uniform cardioid pattern minimizes feedback in PA applications
  • Selectable dual-impedance operation
  • Silent magnetic reed on/off switch with lock option
  • Cardioid dynamic
  • Frequency response 50 to 15,000 Hz
SPECIFICATIONS
  • Type: Dynamic
  • Frequency Response: 50 to 15,000 Hz
  • Polar Pattern: Cardioid (unidirectional)--uniform with frequency, symmetrical about axis
  • Impedance: Dual. Microphone rating impedance is 150 ohms (250 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms and "High" for connection to high-impedance microphone inputs. Wired for low impedance as supplied.
  • Output Level (at 1,000 Hz): Open Circuit Voltage*: Low: -58.0 dB (1.3 mV); High: -35.0 dB (17.6 mV)*0 dB = 1 volt per Pascal (1 Pa = 94 dB SPL)
  • Polarity: Positive pressure on diaphragm produces positive voltage on pin 2 (with respect to pin 3).
  • Switch: Built-in magnetic reed on/off switch with lockplate.
  • Cartridge Shock Mount: Internal rubber vibration-isolator
  • Swivel Adapter: Positive action, adjustable through 90 degrees from vertical to horizontal, permits easy removal for handheld use, suitable for mounting on stand with 5/8"- 27 thread
  • Case: Chrome-plated die casting with ARMO-DUR grille and stainless steel screen
  • Dimensions (Length x Diameter): 6-3/16" x 1-1/4" (157 x 32 mm)
  • Net Weight (less cable): 9 oz (255 grams)
Pro Coverage
MANUFACTURER'S WARRANTY
One year warranty on wireless mics, mixers, and circuitry products.
2 year warranty on wired mics.
Warranty terms vary. Check with manufacturer for specific product warranty.


GUITAR CENTER'S PRO COVERAGE
Pro Coverage gives you added warranty protection for your gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Click To Read More About This Product.

Pro Coverage includes
  • Accidental damage protection
  • Expedited repair or replacement
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to five years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews
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Review Snapshot

by PowerReviews
ShureUNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone
 
5.0

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

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  • 1 Stars

     

    (0)

Reviewed by 3 customers

Displaying reviews 1-3

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(2 of 2 customers found this review helpful)

 
5.0

Good for just about everything.

By Kit

from Fresno, Ca

About Me Experienced

See all my reviews

Pros

  • Durable
  • Easy To Use
  • Versatile

Cons

    Best Uses

      Comments about Shure UNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone:

      The versatility of this mic is astounding. I was torn between this and an SM57 for use as a harmonica mic. With a 57, I would need an impedance transformer, since I'm going straight into a guitar amp. The pro sound tech at Guitar Center suggested this one, because he said the high end resnponce was better. The fact that it switches to high impedance was just a bonus. I'm blown away. Not only is the sound great, but depending on distance, gain, and how the mic is handled, there's a whole range of tones this mic is capable of. By the way, switching the mic from low to high impedance was VERY simple, and only took about a minute, beginning to end, thanks to the clear instructions that came with it.

      (2 of 4 customers found this review helpful)

       
      5.0

      Great mic

      By Greg

      from Granby ct

      Comments about Shure UNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone:

      I am using this for harmonica and it has great tone. This is my first mic so I am no expert but I love it and am not disappointed.

      (2 of 2 customers found this review helpful)

       
      5.0

      Great harp mic

      By gc

      from granby ct

      Comments about Shure UNIDYNE III 545SD-LC Dual Impedance Unidirectional Microphone:

      This is my first mic for harmonica but I have to say that it does crunch up great when cupped. I am starting to get the hang of it and there are a lot of different tones you can get by the different ways of cupping this mic. I am using it thru a vox ac4tv amp and it sounds good to my ears.I swapped in an amperex 12au7 in the amp and feedback is no problem.

      Displaying reviews 1-3

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