The Avenson Audio STO-2's are perfect for picking up any sound in a stereo pair. I don't know about using each of them individually, as I've only used them as a stereo pair, which of course, is the way that they were intended to be used. The applications that I've used them for include for recording a drum kit (using these are overheads), and for recording a grand piano. For both of these applications, the sound came in crystal clear and totally natural. In fact, the STO-2's are about as natural sounding as most of the microphones I've used. They sounded best to me for recording the piano, as you could really hear every single detail in the sound. While they worked extremely well as drum overheads as well, I don't think I'd replace them using Neumann KM 184's as drum overheads given the choice. The STO-2's are definitely a professional's set of microphones, but the price certainly indicates otherwise! Getting two microphones of this quality, at this price, is really the definition of bang for your buck. Whether you're a professional or a home studio owner, the Avenson Audio STO-2's are a great addition to any microphone collection.