8-channel Class D power amplifier • 300W into 8Ω • 600W into 4Ω • 1,200W bridged into 8Ω • 96kHz/32-bit DSP • Dante/AES67 ready • balanced XLR inputs • 2U rack-mount design
The JBL SMA-8300 8 Channel Bridgeable Class-D Amplifier is a high-performance multichannel power amplifier engineered for sophisticated JBL Synthesis home theater systems. Eight channels of efficient Class D amplification provide the power and flexibility required for LCR, surround, and overhead loudspeakers while the compact 2U chassis makes it practical to deploy multiple amplifiers in high-channel-count immersive audio installations.
Each channel can deliver substantial output, while adjacent channel pairs can be bridged when greater power is required for demanding loudspeakers or subwoofer applications. High-resolution onboard DSP provides extensive system-tuning capabilities, while balanced XLR inputs, Dante/AES67 digital audio networking, binding-post speaker connections, IP monitoring and control, and 12V trigger integration make the SMA-8300 an ideal match for professionally designed JBL Synthesis cinema systems.
Key Features & Innovations
Eight-channel Class D amplification — the JBL SMA-8300 8 Channel Bridgeable Class-D Amplifier combines eight high-output amplifier channels in a compact chassis, making it particularly well suited to high-channel-count immersive home theaters.
300 watts into 8 ohms — the SMA-8300 is rated to deliver 300 watts per channel into 8 ohms with two channels driven, providing substantial output for demanding LCR, surround, and height-channel loudspeakers.
600 watts into 4 ohms — increased output into lower-impedance loads gives the SMA-8300 the flexibility to drive a wide range of high-performance JBL Synthesis loudspeakers.
1,200-watt bridged output capability — adjacent amplifier channels can be bridged to deliver up to 1,200 watts into an 8-ohm load, allowing the same amplifier to accommodate channels requiring significantly greater power.
96kHz / 32-bit floating-point DSP — high-resolution digital signal processing provides precise control of the amplifier's input and output signals for advanced loudspeaker tuning and system configuration.
Integrated EQ, delay & limiters — comprehensive onboard DSP tools allow professional integrators to optimize frequency response, timing, output, and loudspeaker protection for the specific theater system.
Dante / AES67 digital audio networking — networked digital audio capability allows compatible multichannel signals to be transported over Ethernet, providing a streamlined connection option for advanced JBL Synthesis installations.
Eight balanced XLR inputs — professional-style balanced analog connections provide robust signal transmission and make the SMA-8300 an excellent match for JBL Synthesis processors equipped with balanced outputs.
Custom-installation focused design — IP monitoring and control, 12V trigger input and output, rack mounting, DSP configuration, and side-to-side cooling help simplify integration into professionally designed equipment racks.
Compact 2U chassis — eight amplifier channels occupy only two rack spaces, making it possible to efficiently build powerful 16-, 24-, or higher-channel amplification systems without excessive rack-space requirements.
FAQ — JBL SMA-8300
How much power does the JBL SMA-8300 produce?
The SMA-8300 is rated at 300 watts per channel into 8 ohms or 600 watts per channel into 4 ohms with two channels driven and less than 0.5% THD. A bridged adjacent channel pair can deliver up to 1,200 watts into an 8-ohm load.
Can the SMA-8300 channels be bridged?
Yes. Adjacent amplifier channels can be bridged when additional output is required. In bridged operation, the SMA-8300 can deliver up to 1,200 watts into an 8-ohm load.
What types of speakers can the SMA-8300 power?
The SMA-8300 is designed for use with a wide range of JBL Synthesis loudspeakers and can power LCR, surround, and overhead or height channels. Its bridgeable architecture also provides additional flexibility for channels or compatible subwoofer applications requiring greater power.
Does the SMA-8300 include DSP?
Yes. The SMA-8300 incorporates 96kHz, 32-bit floating-point digital signal processing with input and output DSP functionality. Its tuning capabilities include EQ, delay, and limiters for precise loudspeaker and system optimization.
Does the SMA-8300 support Dante?
Yes. The SMA-8300 is Dante/AES67 ready and provides dual RJ45 connections for compatible digital audio networking, allowing multichannel digital signals to be distributed over network infrastructure.
What is the difference between the SMA-8300 and SMA-4750?
The SMA-8300 prioritizes channel count with eight amplifier channels rated at 300 watts into 8 ohms, while the SMA-4750 provides four substantially higher-powered channels rated at 750 watts into 8 ohms. Both models offer bridgeable channels, onboard DSP, balanced XLR inputs, Dante/AES67 capability, and a compact 2U design, allowing the two amplifiers to be combined within the same theater when different channels have different power requirements.
Why Buy From Us
Authorized JBL Synthesis dealer offering 100% genuine products with full manufacturer warranty coverage
Expert guidance on amplifier selection, channel configuration, speaker matching, and complete JBL Synthesis theater design
Professional installation, equipment-rack integration, DSP configuration, system calibration, and optimization services available
Dedicated customer support for setup, networking, control integration, upgrades, and troubleshooting
