10Hz-50kHz /-0.5dBsensitivity1.4V (at output 15W)SN ratio80 dB or moreFeatures / RemarksThere will be some noise in each of both tubes. (EF86)Features / RemarksVacuum tubes and condenser parts are current products. International Buyers - Please Note. Description Model: QUAD II20Hz-20kHz at 15WPlayback frequency20Hz-20kHz / -0.2dB. This item is in the category "Sound & Vision\Vintage Sound & Vision\Amplifiers & Tube Amps".The seller is "luckysamurai-store" and is located in this country: JP. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia.