AUDAC SMA500 2-Channel Class-D Power Amplifier 2 x 500W @ 4 Ohm, 2U Rack Mount, Black

Delivering a formidable 2 x 500 watts into 4 ohms, the AUDAC SMA500 is a professional-grade Class-D power amplifier engineered for demanding sound reinforcement applications. Its high-efficiency design ensures robust performance with minimal heat dissipation, making it ideal for fixed installations in venues such as bars, restaurants, conference centers, and houses of worship.

Overview

The SMA500 is a 2-channel amplifier that can also operate in bridge mode to deliver up to 1000 watts into 8 ohms, providing exceptional flexibility for various speaker configurations. It features balanced XLR and unbalanced RCA inputs, along with link outputs for daisy-chaining multiple amplifiers. The front panel includes convenient volume controls and status LED indicators, while the rear offers robust terminal block speaker outputs. Built-in protection circuits safeguard against DC, short circuits, overheating, overload, and signal limiting, ensuring reliable long-term operation.

What stands out

• High power output: 2 x 500 W @ 4 Ω, 2 x 250 W @ 8 Ω, or 1 x 1000 W bridged @ 8 Ω
• Efficient Class-D amplifier technology reduces power consumption and heat generation
• Versatile connectivity with balanced XLR and unbalanced RCA inputs
• Bridge mode operation for driving high-power subwoofers or large full-range speakers
• Comprehensive protection circuitry for enhanced durability
• 2U rack-mountable chassis for professional installations
• Forced convection cooling for quiet operation without fan noise

Technical details

• Amplifier class: Class-D
• Number of channels: 2.0
• RMS power output per channel (4 Ohm): 500 W
• RMS power output per channel (8 Ohm): 250 W
• Bridge-mode power output per channel (8 Ohm): 1000 W
• Frequency response: 20 Hz - 20 kHz
• Total Harmonic Distortion (THD): < 0.05%
• Signal-to-Noise Ratio (SNR): > 100 dB
• Input connectors: 2 x XLR (balanced), 2 x RCA (unbalanced)
• Output connectors: 2 x terminal block (speakers), 2 x XLR (link)
• Input impedance: 10 kOhm (balanced), 47 kOhm (unbalanced)
• Cooling: Forced convection
• Protection circuits: DC, short circuit, overheating, overload, limiter
• Power supply: 230 - 240 V AC, 50/60 Hz
• Maximum power consumption: 1200 W
• Rack space: 2U
• Product colour: Black

Our verdict

The AUDAC SMA500 stands out as a reliable and powerful solution for professional audio installations. Its combination of high output, flexible configuration options, and robust protection features makes it an excellent choice for integrators and sound engineers seeking consistent performance without compromise.