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Shure Beta 181 Microphone
20 to 20,000 Hz
181/C: Cardioid
181/S: Supercardioid
181/O: Omnidirectional
181/BI: Bidirectional
Cardioid: -46.5 dBV/Pa[1] (2.4 mV)
Supercardioid: -49.5 dBV/Pa[1] (2.5 mV)
Omnidirectional: -52.0 dBV/Pa[1] (2.6 mV)
Bidirectional: -51.0 dBV/Pa[1] (2.6 mV)
110 ohms (at 1 kHz)
Cardioid: 73.5 dB
Supercardioid: 71.5 dB
Omnidirectional: 70.5 dB
Bidirectional: 71.0 dB
Cardioid: 20.5 dB SPL-A
Supercardioid: 22.5 dB SPL-A
Omnidirectional: 23.5 dB SPL-A
Bidirectional: 23.0 dB SPL-A
= 55 dB
Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3
11-52 V DC[4] phantom power (IEC-61938) 2.4 mA, maximum
Cardioid: 149.0 dB SPL
Supercardioid: 152.0 dB SPL
Omnidirectional: 154.0 dB SPL
Bidirectional: 153.5 dB SPL
Cardioid: 151.5 dB SPL
Supercardioid: 154.5 dB SPL
Omnidirectional: 157.0 dB SPL
Bidirectional: 156.0 dB SPL
Cardioid: 128.5 dB
Supercardioid: 129.5 dB
Omnidirectional: 130.5 dB
Bidirectional: 130.5 dB
Cardioid: 131.0 dB
Supercardioid: 132.0 dB
Omnidirectional: 133.5 dB
Bidirectional: 133.0 dB
1000 Ohm Load: 7.5 dBV
2500 Ohm Load: 10.5 dBV
5.1 oz (144.5 g)
042406187923
Required
Required
Required
For any questions about compatibility with this product, call us at 800-223-2500 or you can email us any time.
Models | SKU: SHRPM181PR MFR: RPM181/PRE $317.00 $396.00 Save:$79.00 (20%) Special Order Item This item is typically shipped to you directly from Manufacturer within 3-7 Days. Delivery is subject to availability. This item is not returnable. | SKU: SHRPM89PRE MFR: RPM89/PRE $382.00 $476.00 Save:$94.00 (20%) Special Order Item This item is typically shipped to you directly from Manufacturer within 3-7 Days. Delivery is subject to availability. This item is not returnable. | SKU: DPAFAADPA2B MFR: FAADPA2B $320.00 Ships from Manufacturer Usually ships within 2-5 Days. Delivery is subject to availability. |
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Compatibility | Beta 181 Microphone | Shure R Series Cartridges | DPA d:facto |
Accessory Type | Microphone Body | Microphone Body | Microphone Body |
From the renowned brand Shure, the RPM181/PRE Replacement XLR Preamplifier is a high-quality, professional-grade component specifically engineered for the Shure Beta 181 side-address instrument microphone. This innovative and reliable preamplifier is designed to seamlessly integrate with one of four interchangeable capsules, offering cardioid, supercardioid, omnidirectional, and bidirectional polar patterns. This versatility makes it an ideal choice for a wide range of audio applications.
Despite its lightweight design, weighing in at only 5.1 oz, this durable preamplifier is capable of getting close to any sound source, even in the most confined conditions. It boasts a wide frequency response and high SPL handling, making it perfect for miking dual sound sources such as between toms or acoustic instruments.
The RPM181/PRE Replacement XLR Preamplifier is not only useful as a mono drum overhead but can also be paired with another to create the Blumlein stereo effect. When matched with any of the available capsules, it performs with minimal crossover distortion and provides exceptional low-frequency reproduction.
This combination delivers outstanding audio quality with consistent, textbook-like polar responses. The result is a microphone setup with remarkable sound and versatility, making it a must-have for live performances, recording studios, and other professional audio applications. Trust in the Shure RPM181/PRE Replacement XLR Preamplifier for your Beta 181 Microphone to deliver the superior audio performance you need.