RDL ST-EQ3 3-Band Equalizer, Line Level

Bring precise tonal control and improved intelligibility to security audio, broadcast and AV installations with the Radio Design Labs ST-EQ3 3-Band Equalizer. Designed as a line-level signal equalizer for pro audio mixers and surveillance monitoring systems, the ST-EQ3 delivers focused adjustments for voice and music using three active bands tuned for real-world applications. Its balanced bridging input and 150 Ω balanced output make it simple to integrate into mixing consoles, PA systems and CCTV audio feeds, while the wide 20 Hz–22 kHz frequency range preserves fidelity across program material.

Installers will appreciate the on-board peak overload LED for quick setup and fault indication, plus the unit’s low-noise, low-distortion circuitry that keeps recorded and monitored audio clean. Powered by 24 V DC and backed by a 3-year limited warranty, the ST-EQ3 is ideal for AV integrators, security technicians and broadcast engineers who need dependable tonal control in compact form. Add the ST-EQ3 to your rack or camera audio chain to optimize speech intelligibility and program balance — great for paging, monitoring and surveillance audio applications.

• Tight, professional tone shaping: 3 active bands let you enhance voice clarity and music “smile” without introducing hiss or distortion
• Easy system integration: balanced bridging input and a 150 Ω balanced output ensure reliable line-level connectivity with pro audio mixers and surveillance consoles
• Faster setup and protection: peak overload LED shows excessive pre/post-EQ levels so installers can optimize gain staging on-site
• Tuned for real-world use: custom-tailored frequency bands target voice and program material common in security, monitoring and AV installations
• Compact, low-noise design: stick-on form factor and low distortion preserve signal integrity for CCTV audio, paging and recording systems