The Pearl Model CR-55
cardioid condenser microphone (1982)

Specifications

• Preamp: IC and silicon transistor amplifier
  
  
• Frequency Response: 15 Hz to 22,000 Hz
  
  
• Dynamic Range: 118 dB; lowest equivalent noise level 24 dB SPL
  
  
• Sensitivity: −62 dB ±2 dB at 1 microbar, 1,000 Hz
  
  
• Signal-to-Noise Ratio: 70 dB 1 Pa (10 microbar)
  
  
• Maximum SPL: 142 dB (0.5% THD)
  
  
• Low-Frequency Roll-off: 6 dB per octave below 200 Hz
  
  
• Attenuator Switch: Zero to −12 dB
  
  
• Output Impedance: 200 ohms ±20%, balanced, transformerless
  
  
• Minimum Load Impedance: 3K ohms
  
  
• Maximum Output Voltage: 3.5 V at maximum SPL
  
  
• Current Drain: Less than 3 mA
  
  
• Supply Voltage: 12 VDC to 48 VDC or 9-V battery
  
  
• Net Weight: 11.5 oz. (330 grams) less battery
  
  
• Dimensions: 1¹¹⁄₁₆" (430 mm) diameter, 8½" (218 mm) length

Bass roll-off and attenuator switches

This microphone is a product of the Pearl Japanese drum manufacturer.

Microphone courtesy of Jeff Rudisill

Download the CR-55 specification sheet