The RM 8 condenser microphone has a unique, highly professional
appearance. It has a very flat frequency response and low distortion
and is suitable for vocal or instrument recording. It features an ultra 
thin double-side large diaphragm, plus high quality pre-amp circuitry 
with transformer output, offering accurate sound reproduction with 
very low self-noise.

Specifications:

Element: Ф34 Pressure Gradient Transducer
Polar Pattern: Uni/Bi/Omni-directional
Frequency Response: 20Hz-20kHz
Sensitivity: -36dB±2dB (0dB=1V/Pa at 1kHz)
Output Impedance: 150Ω±30% (at 1kHz)
Load Impedance: ≥1000Ω
Equivalent Noise Level: 15dB A 
Max. Input  SPL: 135dB (at 1kHz ≤1% T.H.D) 
S/N Ratio: 79dB
Phantom Power Requirement: 48V DC Phantom Power
Electrical Current: 3mA 
Weight: 393 g 
Dimensions: Ф59.5x174mm