SDCA500-4 | 500W 4-Zone 70V/100V Commercial Class-D Power Amplifier with Bluetooth for Restaurants, Lounges, Bars, Pubs, Warehouses

The Sound Town SDCA500-4 is a 4-zone Class-D digital commercial power amplifier that delivers clear audio with 500W RMS output. Each zone features independent volume control for flexible multi-room sound distribution. The amplifier includes an integrated clipping limiter and cooling system to prevent overheating and protect both the amplifier and connected speakers. The unit is rack-mountable with a standard 19” 2U form factor and includes built-in handles for easy installation and transport, perfect for restaurants, lounges, bars, pubs, schools, and warehouses. The amplifier offers versatile input options, including Bluetooth, one REC input, two sets of RCA inputs, two mic inputs with individual volume control, a USB port, and an FM tuner with antenna. A front-panel LCD display provides easy source management. It includes RCA output connections and speaker terminals with four zone-specific positive outputs and a shared negative (COM) speaker output terminal, supporting flexible wiring for 70V, 100V, and 4–16Ω speaker systems. For a powerful, versatile, and reliable 4-zone commercial amplifier, the Sound Town SDCA500-4 is the professional all-in-one solution. FEATURES CLASS-D DIGITAL AMPLIFICATION: High-efficiency Class-D amplifier delivers powerful, clean sound with 500W RMS output and lower energy consumption for reliable performance.  4-ZONE AUDIO DISTRIBUTION: Four 70V speaker outputs with independent volume control make it easy to manage audio across different rooms or areas.  VERSATILE SYSTEM COMPATIBILITY: Supports 70V, 100V, and 4–16Ω low-impedance speakers for simplified setup.  COMPREHENSIVE INPUT OPTIONS: Includes Bluetooth, one REC input, two sets of RCA inputs, two mic inputs with volume control, USB port, FM tuner with antenna, and an LCD display for easy source management.  BUILT FOR RELIABILITY: Supports standard 19” 2U rack mounting with integrated handles for easy installation and transport. A built-in clipping limiter protects speakers and amplifier from overheating and the durable cast aluminum panel ensures long-term reliability, ideal for multi-room use in restaurants, bars, schools, and warehouses.  SPECIFICATIONS Specifications Model SDCA500-4 Output Power 500W RMS Output Type 70V/100V/4-16Ω Microphone Input 3 mV, 600 Ω Line Input 200 mV, 10 kΩ Frequency Range 40 Hz - 20 kHz Distortion 0.5% (1 kHz) S/N Ratio AUX 88 dB S/N Ratio MIC 116 dB Voltage 110V/230V Dimension & Weight Product Width (in.) 19.0" Package Width (in.) 22.0" Product Height (in.) 3.5" Package Height (in.) 7.3" Product Depth (in.) 14.8" Package Depth (in.) 17.9" Product Weight (lb.) 16.1 lbs Package Weight (lb.) 18.3 lbs Warranty/Certifications Manufacturer Warranty 1 Year FAQ Q: What speaker wire should be used for this system? A: Speaker wire is not included. To ensure optimal performance and minimize signal loss, select the appropriate wire gauge based on the distance between your amplifier and speakers: Distance Wire Gauge 10–15 ft 18 AWG 15–25 ft 16 AWG 25–50 ft 14 AWG 50–100 ft 12 AWG Over 100 ft 10 AWG Using a thicker (lower gauge) wire for longer runs helps maintain signal strength and overall audio quality. DOWNLOADS SDCA Series User Manual