The TG D50d is a dynamic microphone intended for drums and bass instruments. It contains a passive switchable EQ mode that introduces a significant change in the microphone’s sound and behavior:
| Mode | Sensitivity | Freq. Resp. (-3dB) | Impedance |
| Linear | 2.4 mV/Pa | 55–15,000 Hz | 600 Ω |
| EQ | 0.9 mV/Pa | ~20–13,000 Hz | 200 Ω |
In “Linear” mode, the microphone has a broad, ~4dB boost in the bass frequencies, centered around 150Hz, and a two-peak presence boost, +4dB @ 5kHz and +6dB at 9–10kHz. The high-frequency response falls off rapidly above 10kHz.
In “EQ” mode, designed for bass drums, the mid scoop is significantly more pronounced: -4dB @ 500Hz, +6dB @ 70–100Hz, +12dB @ 4kHz.