SoundTube AC-JB20-XFMR Junction Box and 20W Transformer for FP Sound-Focusing

Deliver consistent, configurable audio for paging, security monitoring and distributed sound with the SoundTube AC-JB20-XFMR Junction Box and 20W Transformer. This SoundTube transformer assembly protects wiring and simplifies installation by combining a 20W multi-tap transformer with a compact junction box that mounts cleanly out of sight. The built-in 4-position tap switch lets you select 20W, 10W, 5W or 2.5W power taps (with 25 / 70.7 / 100V support) so you can balance coverage and SPL across zones without complex wiring changes.

Designed for commercial AV, low-voltage and security environments, the AC-JB20-XFMR easily integrates with low-impedance speakers and common paging systems used in surveillance, monitoring and facility-wide communications. The rugged black enclosure conceals connections and meets professional installation expectations while reducing setup time. Ideal for schools, retail, corporate or security installations where reliable, scalable audio distribution is required. Add the SoundTube 20W junction box and transformer to your next project to streamline deployment and ensure predictable audio performance.

• Protects and organizes the transformer in a durable junction box for clean, code-compliant installations
• 4-position tap switching (20W, 10W, 5W, 2.5W) gives precise power control to tailor coverage and volume
• Compatible with 25 / 70.7 / 100V commercial audio systems for easy integration with paging, security and surveillance audio
• Simple addition to any low-impedance speaker for retrofit or new installs, reducing on-site labor and configuration time
• Black, compact enclosure minimizes visual impact and mounts discreetly in ceiling/attic spaces for professional installations