Little Dot I+ 6JI X2 Tube Standard Hybrid Headphone Headphone Amp Pre-Amp Tube Amplifier (LDI+);

Input: Gold Plated Unbalanced (RCA) Jacks Output: 1/4" Gold Plated Stereo Headphone out Tube Options: 6JI standard Frequency Response: 10HZ ~ 50KHz (minus3 dB) THD plus N: 0.2 percent: 1Vrms @ 1000Hz 0.6 percent: 3Vrms @ 1000Hz 1.0 percent: 5Vrms @ 1000Hz Signal to Noise: 92dB Suitable Headphone Impedance: 8 ~ 600 ohms Input Impedance: 50K ohms Power Output: 150mW @ 300 ohms 300mW @ 120 ohms 800mW @ 32 ohms User variable gain settings: 6.5x or 3.25x Power Consumption: 15VA Measurements: Metric: 180mm (L) by 97mm (W) by 100mm (H) English: 7.08 inches (L) by 3.81 inches (W) by 3.93 inches (H) Weight: 1.5 kg or 3.3 lbs. Available in Black Available in either 120VAC or 220VAC