... to Headphone (3.5 or 6.35mm) or power amp (RCA jacks) ·As Bravo Ocean is pure class A ... amp, the aluminum casing is used as heat sink, so ... . it's normal, please dont worry. ·FAQ:Q: This Amp only has only 1 Tube, how can I amplifier stereo ... Compatible) 1 x Power cable with AC wall plug 2012 NEW Bravo Audio Ocean Mini Valve Class A Tube Headphone Amplifier ...