The Gradiente 166 Super A amplifier is a vintage audio component produced by the Brazilian company Gradiente. It is part of Gradiente’s well-regarded Super A series, which featured amplifiers using Class A/B technology optimized for lower distortion and improved audio fidelity, popular in the 1980s. Gradiente was founded by Milton Minev in 1964 in São Paulo.
Output Power 42 Wrms @ 8 Ohms
Input sensitivity 645 mV
Frequency response 7.25 Hz - 26 KHz (-1dB)
Midband Gain 28.1 dB