Description
With two ultra-thin diaphragms and groundbreaking reverse airflow technology, the KSM8 Dualdyne™ delivers unmatched control of proximity effect, presence peaks, and bleed and requires minimal EQ and processing.
PRODUCT DETAILS
Meticulously crafted for world-class vocal performances and presentations in elite venues, the KSM8 Dualdyne is the revolutionary dynamic microphone that only Shure could make.
- Patented cartridge design features two ultra-thin diaphragms (one active and one passive) and a groundbreaking inverted airflow system
- Exceptional control of proximity effect greatly increases working distance without on-axis coloration
- Neutral mid- and high-frequency reproduction due to controlled proximity effect results in the most natural-sounding dynamic microphone available
- Neodymium magnet resides in a micro-injection mold of aerospace SoftMag material, maximizing the magnetic field for the highest output level
- Re-imagined Shure Pumping Pneumatic Shock Mount features tuned cavities, specific resistances, and precisely machined components fully integrated into the cartridge’s acoustic properties, delivering exceptional rejection of handling noise without any loss of low-frequency response
- Patent-pending Diaphragm Stabilization System technology protects and stabilizes the active diaphragm from unwanted movement from plosives or impact
- Dent-resistant, hardened carbon-steel grille design lined with hydrophobic woven fabric provides exceptional water, plosive and wind protection
General Description
The Shure KSM8 Dualdyne Microphone is the world’s first handheld dual-diaphragm dynamic microphone, designed for professional vocal applications in live sound and studio environments. Shure has taken dynamic microphone technology and performance to a groundbreaking new level with the development of the premium KSM8 Dualdyne. By achieving greater output level while minimizing proximity effect to an unmatched degree, the microphone provides a clean, richly detailed signal with minimal feedback. With state-of-the-art manufacturing from superior components, each KSM8 Dualdyne is meticulously crafted and tested to uphold the quality standards of world-class Shure construction even in the most demanding live environments.
Model Variations
The KSM8 microphone is available in a black or brushed-nickel finish. It may also be purchased as part of a Shure wireless system, or as an upgrade to an existing wireless handheld transmitter.
KSM8/B: Superior dual-diaphragm dynamic microphone with a black finish.
KSM8/N: Superior dual-diaphragm dynamic microphone with a brushed-nickel finish.
Features
This dual-diaphragm cartridge delivers greater consistency across the frequency spectrum as the distance between the microphone and the source changes. This revolutionary technology provides the following benefits:
- Reduced proximity effect
- Clean, natural low end
- Smooth high frequency response without a pronounced presence peak
- Increased working distance
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Premium Components |
The KSM8 delivers exceptional results and withstands the rigors of daily use in the most demanding live sound environments.
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Care and Maintenance
The KSM8 grille is lined with a permanently-attached hydrophobic cloth. The user should not attempt to remove or replace this lining. The exterior of the grille can be cleaned by gently using warm soap and water with a soft toothbrush.
If the grille becomes damaged or deformed, please contact Shure's Service Department for a replacement.
Warning: Turning the cartridge in the shockmount or touching the second diaphragm can result in permanent microphone damage and may result in an undesirable change in frequency response. There are no user-serviceable parts inside.
Applications
The KSM8 Dualdyne is designed to excel as a vocal microphone while withstanding the punishment of professional live sound reinforcement, but can be used to capture other sources as well. For information on microphone use and applications or for a more comprehensive look at the technology behind the microphone, visit www.shure.com for educational publications on these topics and more:
- Microphone techniques for live sound reinforcement
- Microphone techniques for recording
- Proximity effect
The Shure Dualdyne Cartridge
The KSM8 Dualdyne Cartridge utilizes a reversed side entry airflow system. Sound enters the microphone via the side entry inlets and passes through the rear second diaphragm before striking the front diaphragm. By using the second diaphragm in the resistance network low frequencies are partially blocked from entering the cartridge resulting in a natural, low-end response with controlled proximity effect and no loss in clarity.
Dualdyne cartridge side view
Dualdyne Benefits
The unique design of the Shure Dualdyne cartridge provides several benefits over traditional single-diaphragm dynamic microphones:
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Reduced Proximity Effect |
With traditional microphones, low-frequency response increases as the performer moves closer to the microphone. A strong presence peak centered around 4 to 5 kHz is used to counteract the increased bass. The dual-diaphragm microphone greatly reduces the proximity effect, and low-frequency response remains consistent with distance. This delivers a more natural response throughout the vocal range, eliminating the need for a strong presence peak.
Single vs. Dual-diaphragm frequency response |
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Increased Working Distance |
Traditional microphones confine the performer to a specific distance from the microphone. They must maintain this distance in order to avoid variations in tone. The balanced response of the dual-diaphragm microphone allows the performer to move more freely without affecting the sound quality.
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Less Signal Processing Required |
Live sound engineers often use signal processing, like equalization, to mitigate both the proximity effect of traditional microphones or to compensate for improper microphone technique (such as when a performer covers the grille with their hand). The dual-diaphragm microphone delivers a smoother response throughout the vocal range and is less susceptible to improper microphone handling, requiring less corrective signal processing and resulting in a more natural sound. |
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Exceptional Off-axis Linearity |
When unwanted off-axis sources leak into vocal microphones, it can degrade phase coherency and compromise source quality. The KSM8 provides greater immunity to these problems, due to linear polar response across the entire frequency spectrum. |
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Design and Construction
The mechanical design of the KSM8 offers advancements that benefit the performance and aesthetics of the microphone.
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Advanced Pneumatic Shockmount Technology |
The Diaphragm Stabilization System (DSS) works with the pumping pneumatic shockmount to isolate and suspend the cartridge, reducing handling noise. In addition to diminishing unwanted movement, the moving piston and internal cavities have been precisely engineered to stabilize the diaphragm amidst mechanical vibration. The Shure engineers originally patented this technology over 50 years ago, and Shure is the only microphone manufacturer to successfully implement it. |
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Innovative Hardened Grille Design |
The outer grille has been tempered to provide years of dent resistance. The grille interior is lined with a hydrophobic woven fabric. This moisture-resistant cloth protects the cartridge while providing superior pop protection, ensuring years of usability and durability. |
Specifications
Type
Dual Diaphragm Dynamic (moving coil)
Frequency Response
40 to 16,000 Hz
Polar Pattern
Cardioid
Output Impedance
300 Ω
Sensitivity
at 1 kHz, open circuit voltage
-51.5 dBV/Pa[1] (2.66 mV)
Polarity
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
Net Weight
330 g (11.64oz.)
Connector
Three-pin professional audio (XLR), male
Housing
Die-cast Aluminum with Paint or Brushed Nickel Finish
[1] 1 Pa=94 dB SPL
Polar Pattern
Frequency Response
Dimensions
Accessories
Furnished Accessories
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Black, Soft Flex Swivel Stand Adapter for KSM8 and KSM9 |
A25E |
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Zippered Carrying Case for KSM8 |
AK8C |
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5/8" to 3/8" (Euro) Threaded Adapter |
95A2050 |
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