JBL Synthesis SMA-8300

JBL Synthesis SMA-8300 – Powerful 8-channel Class-D amplifier for high-performance audio systems

JBL Synthesis SMA-8300 is a compact 8-channel Class-D power amplifier developed to deliver maximum performance in installations where high power and many channels must be combined with efficient use of space. With 300 watts per channel into 8 ohms and the option to bridge channels to 1,200 watts, the SMA-8300 offers a flexible configuration that makes it ideal for LCR, surround, ceiling, and subwoofer channels in advanced JBL Synthesis cinema systems.

The built-in 96 kHz / 32-bit DSP platform enables precise loudspeaker tuning, while network control and full external control make integration into complex systems simple and reliable.

Highlights

• 8-channel Class-D amplifier with 300 W per channel into 8 ohms
• Bridging option: up to 1,200 W per channel pair
• Built-in 96 kHz / 32-bit DSP for speaker calibration and system control
• Dante/AES67 digital input for modern network solutions
• Analog XLR inputs (balanced)
• Extreme damping factor (>1000) for optimal bass control
• Signal-to-noise ratio above 105 dB for clean and clear reproduction
• 12V trigger and network control via RJ45
• Compact 2U rack design with low noise level
• Ideal for JBL Synthesis immersive audio systems

Uncompromising power in a compact design

The SMA-8300 delivers massive power in an efficient, space-saving chassis. Each of the eight channels delivers 300 watts into 8 ohms or 600 watts into 4 ohms, while bridging channels provides up to 1,200 watts into 8 ohms. The flexible architecture makes it possible to drive everything from high-resolution front channels to demanding subwoofers – all from the same amplifier.

The powerful Class-D technology ensures high efficiency, low heat generation, and stable operation, even under extended loads.

Advanced DSP and system integration

The integrated DSP operates at 96 kHz resolution and 32-bit floating-point precision, enabling accurate adjustment of frequency response, phase, and level. The amplifier supports full external control via network, so configuration and monitoring can be carried out centrally in large multichannel setups.

The SMA-8300 is designed to function as part of a complete JBL Synthesis system and provides the precise adjustment options that professional installers require.

Professional connections

The amplifier offers eight balanced XLR inputs and two Dante/AES67 RJ45 ports for digital signal distribution. The outputs consist of heavy-duty binding posts that accept banana plugs, spade connectors, and 10 AWG wires. In addition, 12V trigger control and a dedicated RJ45 port for network monitoring and control are included.

Designed for reliable operation

With a high-quality power supply, efficient cooling, and a quiet fan, the SMA-8300 is engineered for stable operation even in demanding installation environments. The compact 2U rack chassis makes it ideal for cinemas, studios, or home installations where high performance and low noise are essential.

Part of the complete JBL Synthesis ecosystem

The SMA-8300 is developed as a central component in the JBL Synthesis series and matches perfectly with the brand's processors and loudspeakers. The combination of power, efficiency, and digital control ensures the best possible reproduction in both private and professional cinema systems.