- Tube: USA miniature RAYTHEON JAN5899 *2
- OpAmp: NE5532 *2 (can be upgraded)
- Lithium battery: 12V, 1000mA
- Charging time: 2-2.5 hours
- Working time: 4-4.5 hours
- Output power: 450 mW
- SNR: 105 dB
- Suggested load impedance: 16-300Ω
- Output: 2.5 mm balanced Jack *1, 3.5 mm Jack *1
- Size (L*W*D): 115*69*23 mm / 4.5*2.7*0.9 in (without knob)
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