If you dont know what kind of acoustic environment you are dealing with, even the best equipment can have your sound lacking its detail and presence. Thats where the D-1500 Real Time Analyzer comes in. With 31-bands of EQ analysis, what would once take you hours to do can now be performed in minutes, giving your audio output a true sonically flat frequency response. D-1500 Features: 31-band RTA, Large LED display, Signal generator (sine, white, pink), Test Mic Input, Phase Correlation & VU Meters, Linkable via MIDI or DNet System Interface.