The Universal Audio SD-1 is a dynamic cardioid microphone designed for high-quality vocal and instrument recordings. It features a frequency response of 50 Hz to 16 kHz, ensuring a natural and detailed sound capture. The microphone includes a low-cut filter at 200 Hz and an articulation boost for the 3–5 kHz range, allowing for tailored tonal adjustments. Its rugged all-metal construction ensures durability, and the included windscreen helps reduce plosives and breath noise. The SD-1 is compatible with both Universal Audio hardware and other audio interfaces, making it versatile for various recording setups.