JBL Synthesis SMA-4750
Best high-performance amplifier for custom immersive home theater installations.
This powerhouse delivers the raw, bridgeable muscle needed for massive immersive setups without sacrificing the precision of high-resolution DSP. It is a complex, professional-grade tool that demands a sophisticated installation, but it rewards the effort with unparalleled control over every channel in your theater.
$4999.00
at
Audio Advice
Who it's for
- Home cinema enthusiasts seeking theater-grade dynamics and pristine audio fidelity
- JBL Synthesis owners looking for seamless system integration and calibration
- Serious audiophiles prioritizing long-term reliability and premium build quality
Who should skip it
- Budget-conscious buyers seeking entry-level or mid-range audio solutions
- DIY installers who prefer a simple, plug-and-play setup experience
- Homeowners with limited rack space or restricted ventilation options
Performance breakdown
Power Density
Massive output capabilities packed into a compact, rack-friendly chassis.
DSP Precision
High-resolution 96kHz processing offers surgical control over complex speaker arrays.
System Integration
Dante and AES67 support ensure seamless connectivity in modern digital ecosystems.
Load Versatility
Bridgeable channels handle demanding subwoofer and LCR configurations with ease.
Thermal Management
Quiet ventilation keeps performance stable during extended high-output listening sessions.
Signal Fidelity
High damping factor and low noise floor ensure clean, authoritative sound reproduction.
Key Specs
Model
SMA-4750
Amplifier Class
Class D
Number of Channels
4
Power Output (2 channels driven, <0.5% THD), Rated Power (8Ω)
750W per channel
Power Output (2 channels driven, <0.5% THD), Rated Power (4Ω)
1,500W per channel
Power Output (2 channels driven, <0.5% THD), Rated Power (8Ω Bridged, one zone driven)
2,500W
Bridgeable
Yes
Frequency Response (4Ω, 20Hz – 20kHz)
±0.5dB
Total Harmonic Distortion
0.35% (at full rated power, from 20Hz – 20kHz)
Signal to Noise Ratio
>105dB (ref. Rated power, ‘a’-wtd.)
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