Goldmund eelvõimendi nelja 12AU7 lambiga

Müüa Goldmund eelvõimendi, põhineb ameerika CARY-SLP90 skeemil, neli PSVANE 12AU7 Series Mark II matched pair raadiolampi, pult, 4x RCA sisendit, 1x RCA väljund, lisainfo meili teel. Tehniline info: Refer to the American CARY-SLP90 circuit, this model is the pioneering work of the CARY triode tube pre-amplifier, and the response is great. Different from the traditional front, the SLP90 has high detail and thickness in the mid and low frequencies. The remote control volume control board adopts 127-level relay pure resistance shunt control, the impedance is constant, the step is 0.5dB, and the total attenuation is 63.5dB. With audio output mute function. With power-off memory function, it can return to the state before the last shutdown every time it is turned on.With volume one-key return function. Support 4 way stereo audio inputs, 1 way output. Using 4 pcs PSVANE 12AU7 tubes. Using pure copper gold-plated RCA terminal.Using 30VA Hi end Oxygen-free copper R-core transformer.Using Full aluminum chassis. Using HiFi capacitors and resistors. Using RO 1813 and SCR coupling capacitor. Using BC main capacitor.Specifications: Gain: about 10 times. Input impedance:47K SNR: 90dB. Frequency response: 10Hz--30KHz. Distortion: ≤1%. Input: Stereo RCA*4 groups. Output: Stereo RCA*1 group. Colour: Black. Working voltage: AC115V or AC230V (optional). Dimensions (W*H*D): 320*90*308MM. Net weight: about 4.7KG. Package weight：6kg