JBL SMA-8300

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

The JBL Synthesis SMA-8300 is a compact, 8-channel Class-D power amplifier designed to deliver maximum performance in installations where high power and multiple channels must be combined with efficient use of space. With 300 watts per channel into 8 ohms and the ability 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 speaker matching, while network management 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 capability: 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 over 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 performance in a compact design

The SMA-8300 delivers massive power in an efficient, space-saving cabinet. Each of the eight channels delivers 300 watts into 8 ohms or 600 watts into 4 ohms, while bridging channels delivers 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 prolonged load.

Advanced DSP and system integration

The integrated DSP operates at 96 kHz resolution and 32-bit floating point precision, allowing for precise adjustment of frequency response, phase and level. The amplifier supports full external control via network, allowing configuration and monitoring to be performed centrally in large multi-channel setups.

The SMA-8300 is designed to work as part of a complete JBL Synthesis system and delivers the precise adjustment capabilities that professional installers demand.

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 both banana, spade 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 designed for stable operation in even the most demanding installation environments. The compact 2U rack cabinet makes it ideal for cinemas, studios or home installations where high performance and low noise are essential.

Part of the complete JBL Synthesis ecosystem

Developed as a central component of the JBL Synthesis series, the SMA-8300 is a perfect match for the brand's processors and speakers. The combination of power, efficiency and digital control ensures the best possible reproduction in both home and professional cinema systems.