The Apex591 is one of the most versatile condenser microphones in the Apex line. Ideal for virtually any live sound, broadcast or recording application, the Apex591 operates on either internal 9-volt battery or phantom power where available. Perfect for drum overheads, hi-hats, acoustic guitars, strings, brass or woodwinds the integrated thee position pad switch (0, -10dB and -20dB) as well as an 80Hz high pass filter ensure the Apex591 can be tailored to suit any sound source.