The RK-12 is a nice-sounding OEM AKG CK12 capsule replica manufactured in China. Compared to the original CK12 from AKG, it is a respectable performer with a slightly smoother high-frequency boost, and to a lesser effect, a slight low-frequency boost.
The RK-12 features 3-micron gold-sputtered mylar and supports both cardiod-only and multi-pattern microphone circuits.
- RK-12 microphone capsule
- Mounting post and saddle
- Screws for the saddle
- Polar pattern: multi-directional (cardiod, figure 8, omni)
- Frequency response:
- Sensitivity: -38dB ±2dB (0dB = 1V/Pa at 1kHz)
- Output impedance: 200Ω ±30% at 1kHz
- Max Input SPL: 140dB at 1kHz = 1% THD
- Capacitance: 70 ±4PF
- 34mm diameter x 13.4mm