


Shure KSM8/B Dual-Diaphragm Dynamic Vocal Microphone
- Dual-diaphragm cardioid dynamic vocal microphone
- 40 Hz–16 kHz frequency response
- 300-ohm output impedance
- Black die-cast aluminum housing
- Hardened carbon-steel grille with hydrophobic lining
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This item
Shure KSM8/B Dual-Diaphragm Dynamic Vocal Microphone
$439.00
Mogami GOLD STAGE-30 30 Ft XLR Microphone Cable
$144.95
The Shure KSM8/B is a handheld dynamic vocal microphone designed for live sound, studio vocal recording, broadcasting, and presentations. Its cardioid pickup pattern focuses on the performer while helping reduce unwanted sound arriving from the sides and rear. The black-finish KSM8/B is suited to singers and speakers who want a wired XLR microphone with a consistent vocal character.
The KSM8 is built around Shure's Dualdyne cartridge, which uses two ultra-thin diaphragms: one active and one passive. Its reverse-airflow design is engineered to reduce the proximity effect commonly associated with close vocal use. This helps keep low-frequency response more controlled as the user changes distance from the microphone.
With a 40 Hz to 16 kHz frequency response and a smooth midrange and high-frequency presentation, the KSM8 is intended to capture detailed vocals without relying on a pronounced presence peak. The cardioid pattern and linear off-axis response can help preserve a more natural sound when other stage or room sources enter the microphone. It is a practical choice where vocal clarity and consistent microphone technique matter.
A neodymium magnet in aerospace-grade SoftMag material supports the microphone's output level, while the internal pneumatic shock mount helps reduce handling noise. Shure's Diaphragm Stabilization System is integrated to help stabilize the active diaphragm against plosives and mechanical impact. These engineering elements support regular handheld use in performance and production environments.
The KSM8/B connects through a standard three-pin male XLR output and can be used with a mixer, microphone preamp, stage snake, or compatible audio interface. It can serve as a step up for a vocal channel that needs more controlled proximity effect and a neutral response. The included stand adapter and thread adapter also make it ready for common microphone stands.
Key Features
- Dualdyne Cartridge: Two diaphragms and reverse airflow help control proximity effect during close or changing vocal use.
- Cardioid Pattern: Focuses pickup toward the performer while reducing off-axis sound.
- Smooth Vocal Response: Delivers a 40 Hz to 16 kHz response with controlled low end and neutral upper frequencies.
- Pneumatic Shock Mount: Internal isolation helps reduce handling noise without sacrificing low-frequency response.
- Diaphragm Stabilization System: Helps protect and stabilize the active diaphragm from plosives and mechanical movement.
- Protective Grille: Hardened carbon-steel grille and hydrophobic fabric help resist dents, moisture, wind, and plosives.
Design & Installation
The KSM8/B combines a die-cast aluminum housing with a black painted finish, a hardened carbon-steel grille, and hydrophobic woven grille lining. Its handheld body measures 48.3 mm in diameter by 188 mm long and weighs 330 g. The grille is designed for dent resistance and its lining is permanently attached.
Connect the microphone's male three-pin XLR connector to a compatible microphone input using a standard XLR microphone cable. For stand use, install the included A25E Soft Flex swivel stand adapter and use the included 5/8-inch to 3/8-inch threaded adapter when needed. The supplied zippered carrying case provides storage and transport protection.
| Model | KSM8/B |
|---|---|
| Product Type | Handheld vocal microphone |
| Microphone Type | Dual-diaphragm dynamic (moving coil) |
| Diaphragm Configuration | Two ultra-thin diaphragms |
| Active Diaphragm | One |
| Passive Diaphragm | One |
| Cartridge Technology | Dualdyne |
| Airflow Design | Reverse side-entry airflow system |
| Polar Pattern | Cardioid |
| Frequency Response | 40 Hz–16,000 Hz |
| Output Impedance | 300 ohms |
| Sensitivity | -51.5 dBV/Pa |
| Sensitivity | 2.66 mV |
| Sensitivity Reference Frequency | 1 kHz |
| Sensitivity Reference | Open-circuit voltage |
| Sound Pressure Reference | 1 Pa = 94 dB SPL |
| Polarity | Positive diaphragm pressure produces positive voltage on pin 2 relative to pin 3 |
| Connector Type | Three-pin professional audio XLR, male |
| Housing Material | Die-cast aluminum |
| Housing Finish | Black painted finish |
| Grille Material | Hardened carbon steel |
| Grille Construction | Dent-resistant |
| Grille Lining | Hydrophobic woven fabric |
| Moisture Protection | Hydrophobic grille lining |
| Internal Shock Mount | Pumping pneumatic shock mount |
| Diaphragm Stabilization | Diaphragm Stabilization System (DSS) |
| Magnet Type | Neodymium |
| Magnet Housing Material | Aerospace-grade SoftMag |
| Diameter | 48.3 mm |
| Length | 188 mm |
| Net Weight | 330 g |
| Net Weight | 11.64 oz |
| Color | Black |
| Included Stand Adapter | A25E Black Soft Flex swivel stand adapter |
| Included Carrying Case | AK8C zippered carrying case |
| Included Thread Adapter | 95A2050 5/8-inch to 3/8-inch threaded adapter |
| Optional Windscreen | A85WS black foam windscreen |
| Replacement Black Grille | RPM266 |
| Certification | CE marking eligible |
What equipment does the KSM8/B connect to?
The microphone uses a three-pin professional male XLR connector. Connect it to a compatible mixer, microphone preamp, stage box, or audio interface with an XLR microphone input.
Is this microphone intended for vocals only?
The KSM8 Dualdyne is designed for professional vocal applications in live sound and studio environments. Shure also notes that it can be used to capture other sources.
What accessories come with the KSM8/B?
Furnished accessories are the A25E black Soft Flex swivel stand adapter, AK8C zippered carrying case, and 95A2050 5/8-inch to 3/8-inch threaded adapter. An XLR cable is not listed among the furnished accessories.
Does the KSM8/B have a cardioid pickup pattern?
Yes. It uses a cardioid polar pattern, which is designed to focus pickup on the sound source in front of the microphone.
Can I use a windscreen with this microphone?
Yes. Shure lists the A85WS black foam windscreen as an optional accessory for the KSM8. The microphone also has hydrophobic woven fabric inside its grille for wind and plosive protection.
Can the grille lining be removed for cleaning?
No. Shure states that the hydrophobic cloth lining is permanently attached and should not be removed or replaced by the user. The exterior grille can be cleaned gently with warm soapy water and a soft toothbrush.
Shipping
- Free 2nd-Day Air shipping on this item
- FREE Next-Day Air on orders over $499
- Orders placed on business days are typically processed the same day, delivery estimates are shown at checkout.
Warranty & Returns
- Authorized Dealer — 100% authentic products with full manufacturer warranty
- 60-Day Returns — Hassle-free returns, see our return policy for details
- Price Match Guarantee — We match verified prices, see policy for terms

Shure KSM8/B Dual-Diaphragm Dynamic Vocal Microphone


















