Angry Audio StereoToolBox FM and HD1 Audio Processor

StereoToolBox combines advanced processing tools with an intuitive setup that gets you on the air in minutes. Rather than relying on front-panel controls, every function is accessed through a modern web browser, giving you complete control from virtually any computer, tablet, or smartphone—no apps, Java, or Flash required. Quick Setup and seven simple adjustment sliders make it easy to dial in your sound, while the Adaptive Compressor automatically maintains consistent levels without sacrificing openness or dynamics. The RuleBreaker Clipper delivers exceptional loudness with minimal distortion, and the Perfect Declipper restores peaks and dynamics lost to aggressive mastering. Additional repair tools—including Delossifier, Dehummer, Noise Gate, Phase Repair, Natural Dynamics, and Speech Detection—help ensure every source sounds its best.

Designed for today's broadcast facilities, StereoToolBox outputs FM and HD1 simultaneously with built-in diversity delay to keep both perfectly synchronized. Composite outputs include both analog MPX and digital AES192 MPX, while integrated RDS/RDS2 encoding, ratings watermarking, and dual Ethernet ports provide everything needed for modern transmission. MicroMPX and MicroMPX+ make it easy to transport complete FM signals over low-bandwidth STL links, while IceCast streaming support, browser-based remote control, JSON interface, and fast software updates simplify day-to-day operation from virtually any device.

StereoToolBox also includes powerful analysis tools such as a digital oscilloscope and FFT spectrum analyzer, along with True Bass, Bass Exciter, Intelligent Composite Clipper, BS412 limiting, AM Brilliance processing, optional backup power support, and complete browser-based control. The result is a processor that delivers competition-ready sound, comprehensive broadcast features, and exceptional value without compromise.