Shure RPM181/PRE: The Ultimate Replacement XLR Preamplifier for Beta 181 Condenser Microphone
Unleash the full potential of your Shure Beta 181 Condenser Microphone with the RPM181/PRE Replacement XLR Preamplifier! This versatile preamp works seamlessly with four interchangeable capsules, each offering a unique polar pattern for a wide range of recording needs.
• Exceptional Sound Quality: Enjoy crystal-clear audio with little to no crossover distortion and outstanding low-frequency reproduction.
• Lightweight and Compact: Weighing only 5.1 oz with a capsule attached, it's easy to position and capture sound even in tight spaces.
• Versatile Polar Patterns: Choose from cardioid, supercardioid, omnidirectional, or bidirectional capsules to suit your recording environment and creative vision.
Whether you're recording live music, podcasts, or vocals, the RPM181/PRE is the perfect companion for your Shure Beta 181 microphone. Its wide frequency response and high SPL handling make it ideal for capturing dual sound sources or creating a Blumlein stereo effect.
With its exceptional audio performance and versatile design, the RPM181/PRE is a must-have for any audio professional or enthusiast. Upgrade your recording setup today and experience the difference!
Features:
- Works with four interchangeable capsules for the Shure Beta 181 instrument microphone
- Offers cardioid, supercardioid, omnidirectional, and bidirectional polar patterns for versatile recording
- Weighs only 5.1 oz with attached capsule for easy positioning in tight spaces
- Delivers exceptional sound quality with little to no crossover distortion and outstanding low-frequency reproduction
Specifications:
- Type: Condenser
- Frequency Response: 20 to 20,000 Hz
- Polar Pattern:
- 181/C: Cardioid
- 181/S: Supercardioid
- 181/O: Omnidirectional
- 181/BI: Bidirectional
- Sensitivity:
- Cardioid: -46.5 dBV/Pa (2.4 mV)
- Supercardioid: -49.5 dBV/Pa (2.5 mV)
- Omnidirectional: -52.0 dBV/Pa (2.6 mV)
- Bidirectional: -51.0 dBV/Pa (2.6 mV)
- Output Impedance: 110 ohms (at 1 kHz)
- Signal to Noise Ratio:
- Cardioid: 73.5 dB
- Supercardioid: 71.5 dB
- Omnidirectional: 70.5 dB
- Bidirectional: 71.0 dB
- Self Noise:
- Cardioid: 20.5 dB SPL-A
- Supercardioid: 22.5 dB SPL-A
- Omnidirectional: 23.5 dB SPL-A
- Bidirectional: 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 phantom power (IEC-61938), 2.4 mA maximum
- Maximum SPL:
- 1000 Ohm Load:
- Cardioid: 149.0 dB SPL
- Supercardioid: 152.0 dB SPL
- Omnidirectional: 154.0 dB SPL
- Bidirectional: 153.5 dB SPL
- 2500 Ohm Load:
- Cardioid: 151.5 dB SPL
- Supercardioid: 154.5 dB SPL
- Omnidirectional: 157.0 dB SPL
- Bidirectional: 156.0 dB SPL
- Dynamic Range:
- 1000 Ohm Load:
- Cardioid: 128.5 dB
- Supercardioid: 129.5 dB
- Omnidirectional: 130.5 dB
- Bidirectional: 130.5 dB
- 2500 Ohm Load:
- Cardioid: 131.0 dB
- Supercardioid: 132.0 dB
- Omnidirectional: 133.5 dB
- Bidirectional: 133.0 dB
- Clipping Level:
- 1000 Ohm Load: 7.5 dBV
- 2500 Ohm Load: 10.5 dBV
- Weight: 5.1 oz (145 grams)
The Shure RPM181/PRE is a replacement XLR preamplifier designed for the Beta 181 Condenser Microphone. It's perfect for audio professionals and enthusiasts recording live music, podcasts, or vocals. With four interchangeable capsules offering different polar patterns, it's versatile for various recording needs. Weighing only 5.1 oz, it's easy to position even in tight spaces. Its frequency response ranges from 20 to 20,000 Hz.
