PA-X vs PA400
The PA400 matches the PA-X on power @ 8ω (200W), power @ 4ω (250W), signal-to-noise (115 dB), and thd (0.003%).
AI-generated product photo — not official manufacturer imagery.
AmplifiersPower Amplifiers
Estimated price (community-sourced)
$468 - $594
Around — community and catalog average, updates slowly
About the PA-X
The SMSL PA-X is a compact Gallium Nitride (GaN) power amplifier designed for high-performance desktop or small-room hi-fi systems. It uses Infineon GaN FET output devices, supports stereo and mono operation, and includes both RCA and balanced XLR inputs. It is positioned as a clean, high-power amplifier for passive speakers, with low distortion and high signal-to-noise performance.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 200W @ 8Ω
- Power @ 4Ω
- 250W @ 4Ω
- Amplifier Class
- D
- Minimum Impedance
- 4Ω
- Input Sensitivity
- 1.0V RMS
- Input Impedance
- 22000Ω
Analog Output
Analog signal output specifications
- THD
- 0.003%
- SNR
- 115 dB
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Digital Inputs
- RCA line input, balanced XLR input, mono XLR input
- Analog Outputs
- stereo binding posts
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 222.5 × 51 × 250 mm (W × H × D)
- Weight
- 2.57 kg (6 lbs)
Key Specifications
Power: 200W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions