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USER MANUAL KSM8 SHURE
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SHURE INCORPORATED
KSM8
Thank you for selecting the KSM series from Shure.
Over 90 years of audio experience has contributed to making this one of the finest microphones available.
If you have any questions not answered in this guide, please contact Shure Applications Engineering at 847-600-8440, Monday through Friday, from 8:00 am to 4:30 pm, CST. In Europe, call 49-7262-92490. In Asia, call 852-2893-4290. Our web address is www.shure.com.
KSM8 Dualdyne™ Microphone
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
Premium Components
The KSM8 delivers exceptional results and withstands the rigors of daily use in the most demanding live sound environments.
- Advanced internal pneumatic shock mount and the Diaphragm Stabilization System (DSS™ patent pending) work together to prevent handling noise
- True cardioid pattern prevents feedback and provides consistent off-axis response
- Hardened, dent resistant grille lined with hydrophobic woven fabric that rejects moisture as well as plosives for years of high quality use
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.
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Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movement① Front Diaphragm
⑤ Sound Channels
② Magnet
⑥ Cavity 1
③ Rear Diaphragm
⑦ Side Entry Sound Inlet
④ Cavity 2
Dualdyne cartridge side view
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.
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| Hz | single diaphragm | dual-diaphragm | |------|------------------|----------------| | 20 | -10 | -10 | | 100 | -5 | -5 | | 1k | 0 | 0 | | 10k | 5 | 5 | | 20k | -10 | -10 |Single vs. Dual-diaphragm frequency response
Dualdyne™ Benefits
The unique design of the Shure Dualdyne™ cartridge provides several benefits over traditional single-diaphragm dynamic microphones:
| Working Distance | |||
| Traditional dynamic microphone | 0 to 1 in. 1 | to 3 in. 3 to 6 in. | |
| Increased bass | Balanced Decreased bass | ||
| KSM8 Balanced | |||
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.
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.
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.
Design and Construction
The mechanical design of the KSM8 offers advancements that benefit the performance and aesthetics of the microphone.
Advanced Pneumatic Shockmount Technology
The Diaphragm Stabilization System (DSS ^TM ) 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.
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.
Accessories
Furnished Accessories
| Black, Soft Flex Swivel Stand Adapter for KSM8 and KSM9 | A25E |
| Zippered Carrying Case for KSM8 AK8C | |
| 5/8" to 3/8" (Euro) Threaded Adapter 95A2050 | |
Optional Accessories
| Black Foam Windscreen for KSM8, SM85, SM86, SM87A, Beta 87A, and Beta 87C | A85WS |
Replacement Parts
| Black Replacement Grille for KSM8 Wired and Wireless | RPM266 |
| Brushed Nickel Replacement Grille for KSM8 Wired and Wireless | RPM268 |
Certifications
This product meets the Essential Requirements of all relevant European directives and is eligible for CE marking.
The CE Declaration of Conformity can be obtained from: www.shure.com/europe/compliance
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
Phone: 49-7262-92 49 0
Fax: 49-7262-92 49 11 4
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] (1.85 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
radar
| Angle | 250 Hz (dB) | 500 Hz (dB) | 1,000 Hz (dB) | |-------|-------------|-------------|---------------| | 0 | -15 | -10 | -5 | | 30 | -10 | -5 | 0 | | 60 | -5 | 0 | 5 | | 90 | 0 | 5 | 10 | | 120 | 5 | 10 | 15 | | 150 | 10 | 15 | 20 | | 180 | 15 | 20 | 25 |
radar
| Angle | 2,500 Hz (dB) | 6,400 Hz (dB) | 9,000 Hz (dB) | |-------|---------------|---------------|---------------| | 0 | 0 | 0 | 0 | | 30 | -5 | -10 | -15 | | 60 | -10 | -15 | -15 | | 90 | -15 | -15 | -15 | | 120 | -15 | -15 | -15 | | 150 | -15 | -15 | -15 | | 180 | -15 | -15 | -15 |Polar Pattern
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |Frequency Response
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Ø 0.8 in. 20.3 mm Ø 1.9 in. 48.3 mm 7.4 in. 187.9 mm DimensionsSHURE INCORPORATED
KSM8
Microphone Dualdyne™ KSM8
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Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movementService : Homologation EMA
Jakob-Dieffenbacher-Str. 12
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |text_image
Ø 0.8 in. 20.3 mm Ø 1.9 in. 48.3 mm 7.4 in. 187.9 mm DimensionsSHURE INCORPORATED
KSM8
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Technical diagram of a mechanical component with numbered parts and directional arrow indicating flow or movement① Vordere Membran
⑤ Schallkanäle
② Magnet
⑥ Hohlraum 1
③ Hintere Membran
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |Frequenzgang
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Ø 0,8 in. 20,3 mm Ø 1,9 in. 48,3 mm 7,4 in. 187,9 mm GesamtabmessungenSHURE INCORPORATED
KSM8
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Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movement① Diafragma delantero
② Imán
③ Diafragma trasero
④ Cavidad 2
⑤ Canales de sonido
⑥ Cavidad 1
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |line
| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |text_image
Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movementHeadquarters Europe, Middle East & Africa
Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12
line
| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |text_image
Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movementHeadquarters Europe, Middle East & Africa
Department: EMEA Approval
Jakob-Dieffenbacher-Str. 12
75031 Eppingen, Germany
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |text_image
Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movement① フロントダイヤフラム
⑤ サウンドチャンネル
②マグネット
⑥ 空洞1
③リアダイヤフラム
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...... single diaphragm —— dual-diaphragm75031 Eppingen, Germany
TEL : 49-7262-92 49 0
FAX : 49-7262-92 49 11 4
Eメール：info@shure.de
仕様
タイプ
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |周波数特性
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Ø 0.8 in. 20.3 mm Ø 1.9 in. 48.3 mm 7.4 in. 187.9 mm 寸法SHURE INCORPORATED
KSM8
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Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movement75031 Eppingen, Germany
전화:49-7262-92 49 0
팩스: 49-7262-92 49 11 4
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |주파수 응답
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0.8 in. 20.3 mm 7.4 in. 187.9 mm 1.9 in. 48.3 mm 크기SHURE INCORPORATED
KSM8
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Technical diagram of a mechanical device with numbered components and directional arrow indicating flow or movement① 前振膜
⑤ 声音通道
② 磁体
⑥ 腔室 1
③ 后振膜
⑦ 侧面声音入口
④ 腔室 2
Dualdyne 话筒头侧视图
减少近讲效应
75031 Eppingen, Germany
电话：49-7262-92 49 0
传真：49-7262-92 49 11 4
电子邮件：info@shure.de
规格
类型
双振膜动态（动圈式）
频率响应
40 到 16,000 赫兹
指向性形状
心形指向性
输出阻抗
300 Ω
灵敏度
1 千赫下, 开路电压
-51.5 分贝伏/帕[1] (1.85 毫伏)
极性
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| Hz | dB | | ---- | --- | | 20 | -10 | | 100 | 0 | | 1k | 0 | | 10k | 0 | | 20k | -30 |频率响应
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0.8 in. 20.3 mm 7.4 in. 187.9 mm Ø 1.9 in. 48.3 mm 外观尺寸Trademark Notices: The circular S logo, the stylized Shure logo, and the word, "Shure" are registered trademarks of Shure Incorporated in the United States. "SHOCKSTOPPER" is a trademark of Shure Incorporated in the United States. "Mylar" is a registered trademark of E.I. DuPont de Nemours and Company in the United States. These marks may be registered in other jurisdictions.
Patent Notice: Patent Des. 530 706 Des. 531 171