I will sell in excellent condition preamplifier Audio Research SP17Voltage 230At the Phono and linear inputs are installed low-noise field-effect transistors with a PN junction (J-FET), and instead of 12AX7 lamps - 6N30, characterized by high linearity and a long service life. The anode voltage stabilizer is similar to that in the LS17 and LS26 models, as is the stepped volume control with 103 positions (compared to 70 in the SP16), thanks to which the desired volume level can be set with high accuracy, which is especially important for quiet listening. While the maximum input signal level of the SP16 did not exceed 3.5 V, the SP17 allows 9 V to be supplied to the inputs without the risk of overload. The SP16 can be controlled using direct access codes and discrete on-off commands, as well as quick mute (Mute), which can be received from the control controller. The SP17 preamplifier has an extended frequency range and reduced output impedance, allowing the use of long cables and operation with an amplifier with a relatively low input impedance. The gain in the linear path compared to the SP16 remained almost the same (it decreased by only 0.4 dB), while in the phono corrector it became higher (47 dB versus 43.5 dB). The noise level decreased: by 9 dB in the linear path and by 11 dB in the phono corrector, which makes it possible to use pickup heads with a signal level of less than 1 mV. HideTypePreamplifier (stereo) Remote control includedCountry (head office)USAColorBlackPower consumption, W39Height, mm132Width, mm480Depth, mm254Weight, kg5.7 I will pack and ship worldwide!

AUDIO RESEARCH SP17 PREAMP with MM phono MINT condition. special edition aluminum remotetubes are less than 3 years old with very little usageshipped fedex in original double box, signature required