Bravo Audio Ocean is a class A tube headphone amplifier. Providing clean, powerful and enjoyable sound. No Crossover distortion! Hear what you have been missing in your favorite music!<br><br>Features:<br>Tube headphone amplifier with powerful dynamic and sweet TUBE sound for Audio players.<br>Pure class A Tube amp, no op amp IC and low voltage.<br>With Aluminum case to help dissipate heat.<br>Multiple input (3.5mm &amp; RCA jacks) and output(3.5mm &amp; 6.35mm &amp; RCA jacks) options.<br>Can be connected with CD player, cellphone, laptop, PC and used as a headphone amp or pre-amplifier.<br><br>Specification:<br>Brand: Bravo<br>Model: Audio Ocean<br>Input: RCA &amp; 3.5mm Jacks<br>Output: 3.5mm &amp; 6.35mm &amp; RCA jacks<br>Power Adapter: US Plug<br>Input Power: DC24V<br>Input Sensitivity: 100mV<br>Input Impedance: 100KOhm<br>Output Impedance: 20~600 Ohm<br>Gain: 30dB<br>Frequency Response: 10Hz-60KHz +/- 0.25dB<br>Signal/Noise Ratio: &gt;90dB<br>Dynamic range: 84.6dBA(300 ohm) 89.8dBA(33 ohm)<br>MD + Noise: 0.045(300 ohm) 0.42(33ohm)<br>Item Size: 12 * 8 * 7.5cm / 4.7 * 3.1 * 3in<br>Item Weight: 322g /11.3oz<br>Package Size: 14 * 14 * 11cm / 5.5 * 5.5 * 4.3in<br>Package Weight: 710g / 1.6lb<br><br>Note:<br>The tube needs about 30s to be warm-up before working properly.<br><br>Package List:<br>1 * Headphone Amplifier<br>1 * Power Adapter (US)<br>1 * User Manual (English)