Our current flagship model(s) are the K.I.C.A.S. and Caliente Headphone Amplifier. The K.I.C.A.S. and Caliente employ a single ended, standard RCA/Phono input at the back and a single ended, ¼" phone jack output. It offers both high current output rates for lower impedance headphones, but also has enough voltage to drive higher impedance headphones (up to 600 ohms rated impedance) with ease. K.I.C.A.S. and Caliente are designed primarily for modern dynamic headphones (impedances from 25 to 600 ohms rated impedance, with an efficiency of 96 dB/mW or better).