Tierra Audio is represented in the current MicPro catalogue by New Twenties microphone preamp. The listed range is relevant to modular or studio microphone front-end processing. When comparing these products, check format, gain, input and output, phantom power, headroom, metering and chassis compatibility. The description stays product-led because the current MicPro evidence is concentrated in one preamp model. This description is kept catalogue-led, so the individual model listing remains the source for exact specifications, compatibility and included accessories.