The Ultragraph Pro FBQ1502HD is a High-Definition 15-Band Stereo Graphic Equalizer with FBQ Feedback Detection System.

• Professional 15-band stereo graphic equalizer for live and studio applications
• Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as audio analyzer
• Ultra-low noise 4580 operational amplifiers for highest signal integrity
• Dedicated mono subwoofer output with adjustable crossover frequency
• Additional low-cut filter removes unwanted frequencies, e.g. floor rumble
• Highly accurate 4-segment LED output metering and input gain controls for easy level setting
• Servo-balanced inputs and outputs with 1/4" TRS and gold-plated XLR connector
• "Planet Earth" switching power supply for maximum flexibility (100 - 240 V~), noise-free audio, superior transient response plus low power consumption for energy saving