Studio Projects C1 Fixed Cardioid LD Microphone The Studio Projects C1 is a large diaphragm, fixed-cardioid condenser microphone employing a 1.06” (27mm) capsule, high quality, low noise amplifier and balanced, transformerless output circuitry. It features switchable -10dB pad and 6dB@150Hz high pass filter for added control in various recording applications and a clear, full response [...]