An additional low cut filter removes unwanted frequencies such as floor rumble, while a highly accurate 4-digit LED output metering and input gain control let you easily adjust levels. High-quality components abound, such as the ultra low-noise audio operational amplifiers for outstanding sound performance and the servo balanced inputs and outputs with 1/4" TRS and gold-plated XLR connectors. Outstanding reliability is guaranteed with the high-quality illuminated faders, detent ALPSŪ potentiometers and illuminated switches. With its comprehensive set of features, the ULTRAGRAPH PRO FBQ1502 really hits home, letting your creativity come alive in full swing.

The FBQ Feedback Detection System lets you immediately recognize and eliminate feedback frequencies. Unlike other systems, it is extremely fast-acting, responding within milliseconds.

The FBQ Feedback Detection System also provides the function of a spectrum analyzer. A spectrum analyzer helps to identify frequency areas whose energy levels are significantly higher or lower than the rest of the musical program. Often caused by specific room acoustics or characteristics of your sound system, these frequencies cause feedback. Our amazing FBQ Feedback Detection System helps you to easily detect and smooth out these irregularities during the sound check and you're ready and done with when the show starts. Once you've got the critical frequencies under control, your system is efficiently protected against feedback and tuned to offer maximal gain reserve.