The Focusrite Scarlett series has become one of the most well-known, affordable audio interface series currently on the market. The Scarlett 2i4 is a 2 in, 4 out USB interface that can operate across platforms. With two preamps for any microphone or instrument and 24-bit, 96kHz conversion, as well as its 48v phantom power, this compact little audio interface can do everything you would need for a bedroom studio. Finally, zero latency lets you record in real time and multi-track with ease.