Shure RK311 – Foam Windscreen for SM81 Condenser Microphone is backordered and will ship as soon as it is back in stock.
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Product Overview
The Shure RK311 is a foam windscreen for the SM81 cardioid condenser instrument microphone, attenuating wind and breath noise during live performance, broadcast, and overhead instrument miking applications. The SM81 is a precision condenser widely used for acoustic instrument, overhead, and hi-hat miking in commercial AV and broadcast studios. The RK311 reduces low-frequency wind artifacts without significantly affecting the SM81’s extended high-frequency response.
Product Description
The SM81’s flat frequency response and wide dynamic range make it sensitive to airflow noise in outdoor and ventilated environments. The RK311 foam windscreen slips over the SM81 capsule assembly to attenuate wind and HVAC-induced noise during sessions where mic stand positioning near air vents or outdoor environments is unavoidable. It is also useful when the SM81 is used as a boundary or overhead microphone in spaces with overhead HVAC. Replacing worn RK311 windscreens maintains consistent noise rejection across all SM81 units in an installed or rental inventory.
Key Features
- SM81-Specific Fit — Dimensioned specifically for the SM81 cardioid condenser capsule assembly, ensuring a secure fit that does not shift during use or affect the microphone’s mounting position.
- Wind and Breath Noise Reduction — Open-cell foam construction attenuates airflow and vibration noise, reducing low-frequency artifacts in recordings and live sound reinforcement without heavy high-frequency rolloff.
- OEM Shure Replacement — Genuine Shure accessory for the SM81-LC, ensuring correct dimensional fit and material consistency.
Technical Specifications
| Part Number | RK311 |
| Compatible Microphone | Shure SM81-LC |
| Material | Open-cell foam |
| Type | Microphone windscreen |
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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