Kramer 90-011290 2-Channel Audio Mixer

Optimize audio for security, AV and presentation environments with the Kramer Electronics 90-011290 2-channel audio mixer. Designed for integrators and monitoring rooms, this pro audio mixer blends a line-level source with either a microphone or a second line input, delivering clean mixed output for surveillance, paging, or conference systems. The selectable microphone input accepts dynamic or condenser mics (with bias voltage), while dedicated gain controls for Line 1 (or mic), Line 2 and master let you dial in consistent levels. With a 69 dB signal-to-noise ratio and a talkover feature that mutes line audio when a microphone is detected, the 90-011290 ensures announcements and live speech remain intelligible over background audio. Its compact Kramer TOOLS footprint supports three units side-by-side in 1U of rack space and runs on 12V DC for easy integration into existing rack or field deployments. Ideal for control rooms, security monitoring stations, and presentation systems — add the Kramer 2-channel mixer to your next AV or surveillance installation to improve clarity and control.

• Mix mic and line sources seamlessly for clear announcements and background audio, simplifying AV and surveillance monitoring setups
• Talkover function mutes line audio when a microphone is active, ensuring intelligible paging and live announcements in security or conference environments
• Selectable microphone input supports dynamic or condenser mics with bias voltage for flexible microphone choices and reliable voice pickup
• Precise level (gain) controls and a 69 dB signal-to-noise ratio deliver balanced, low-noise audio for professional monitoring and recording
• Ultra-compact Kramer TOOLS design fits 3 units side-by-side in a single 1U rack space, saving valuable rack real estate in control rooms