| SUPERLUX HD651 CIRCUMAURAL CLOSED-BACK HEADPHONES SPECIFICATIONS | |
| Type: | Dynamic, closed-back | 
| Driver: | Φ40mm, neodymium | 
| Sensitivity: | 98dB SPL (1mW) | 
| Frequency Response: | 20-20,000Hz | 
| Max. Input Power: | 200mW | 
| Rated Impedance: | 32Ω | 
| Total Harmonic Distortion: | <0.25% @ 1kHz /1V | 
| Ear pads: | Leatherette | 
| Cable: | 2-meter (6.6 ft.) | 
| Connector: | Stereo mini plug | 
| Headphone Calliper Pressure: | Approx. 4.5N | 
| Net Weight: | 185g (6.5 oz) | 
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