App Available Now
Shop smart. Save big.
Receive the latest updates from Canada Computers and be the first to take advantage of special promotions and events.
Email SubscribeProviding Canada with business solutions for over 25 years. Learn More
Apply for Corporate AccountGive us a call
Toll-Free 1.855.940.2400
Tel: 905.780.2632
Overview
The RPM181/BI Bidirectional Polar Pattern Capsule by Shure is one of four interchangeable capsules for Shure's Beta 181 side-address instrument microphone. It features a locking ring which provides a secure connection with the Shure RPM181/PRE. Paired with this preamp, its compact design weighs only 5.1 oz and gets close to any source even in the tightest conditions. With its wide frequency response and high SPL handling, it's great for miking dual sound sources such as between toms or acoustic instruments. It can also be very useful as a mono drum overhead or use a pair to create the Blumlein stereo effect. It also performs with little to no crossover distortion and provides exceptional low-frequency reproduction.
The capsule is made with a hardened steel mesh grille that resists denting, wear and abuse. Along with its compact form factor, the diaphragm provides exceptional audio with consistent, textbook-like polar responses resulting in a mic with noteworthy sound and versatility.
- Interchangeable side-address Bidirectional capsule for the Shure Beta 181
- Locking ring provides secure connection between capsule and Shure RPM181/PRE preamp
- Compact 5.1 oz design gets close to any source even in the tightest conditions
- Provides wide dynamic range and high SPL handling
- Performs with little to no crossover distortion and provides exceptional low-frequency reproduction
- Hardened steel mesh grille resists denting, wear and abuse
Specifications
Type | Condenser |
Frequency Response | 20 to 20,000 Hz |
Polar Pattern | Bidirectional |
Sensitivity | -51.0 dBV/Pa (2.6 mV) |
Output Impedance | 110 ohms (at 1 kHz) |
Signal to Noise Ratio | 71.0 dB |
Self Noise | 23.0 dB SPL-A |
Common Mode Rejection | =55 dB |
Polarity | Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3 |
Power Requirements | 11-52 V DC[4] phantom power (IEC-61938)2.4 mA, maximum |
1000 Ohm Load | 7.5 dBV |
2500 Ohm Load | 10.5 dBV |
Warranty & Returns
Reviews
MIR = Mail in Rebate, IR = Instant Rebate. Prices are in Canadian dollars. Canada Computers & Electronics is not responsible for typographic or photographic errors. Prices and specifications are subject to change without notice. Promotional pricing is valid while quantities last. Logos and trademarks are copyrighted and the property of their respective owners. Canada Computers & Electronics is independently operated in Quebec. © 2003 - 2024 Canada Computers & Electronics. All rights reserved.