HiFiMAN EF499 - Specifications Overview; Technical Performance Metrics; Physical Dimensions and Weight

THD+N ( Line out ) : 0.008% (0dB)
Channel Separation: 95±3dB
Signal to Noise Ratio: 99dB (A Weighted, AP Open Loop Test)
Max Power Output: 4.35 WPC@32Ω balanced/
1.28 WPC@32Ω unbalanced
Weight: 3.3kg
Dimension: see below graphic for all details
Specifications
223mm
220mm
26mm
58mm
229mm
150mm
80mm
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EF499 User Guide