SoundTube SA502 Channel Class D Amplifier, 34 dB Maximum Gain with 2x 50W Output

Designed for professional security and commercial audio systems, the SoundTube SA502 Pro Amplifier delivers compact, dependable power where clear speech and reliable paging matter most. This two-channel Class D amplifier provides 2 x 50W output with up to 34 dB gain, giving you the headroom to drive small-to-medium zones used in monitoring rooms, retail loss-prevention, and campus surveillance. Multiple user-selectable inputs (balanced Euroblock, unbalanced mini jack, or high-level Euroblock) and three operating modes—stereo, mono, or bridged mono—make integration with CCTV audio, access control, or networked PA systems fast and straightforward. Built-in energy-saving features like signal-detect auto-standby and an external 12–32V trigger lower operating costs and support centralized control in security racks. With a 20 Hz–20 kHz frequency response, dual concentric gain controls, and a defeatable 120 Hz high-pass filter, the SA502 prioritizes speech intelligibility and system protection. The rugged aluminum enclosure and compact footprint mean reliable performance in constrained equipment rooms or mobile setups. Add the SoundTube SA502 to your next security, surveillance, or monitoring installation to ensure clear, controllable audio—order today.

• Compact, high-output design delivers 2x50W to reliably power speakers in paging, security and monitoring zones
• Flexible inputs and operating modes (stereo, mono, bridged) simplify integration with CCTV, access control and audio networks
• Energy-saving auto-standby and external 12–32V trigger reduce runtime costs and enable remote system control
• Clear, speech-focused performance with 34 dB maximum gain and 20 Hz–20 kHz response for intelligible announcements and alerts
• Rugged, space-saving aluminum housing and independent channel gain controls fit tight racks and 24/7 surveillance installations