This preamplifier is an upgraded version of the Jolida-JD9 MK II with upgraded capacitors, Burr Brown OP AMPs (OPA627BPG4) and damping to the underside of the top metal cover. The stock 12ax7 vacuum tubes have been replaced with 2 original vintage Telefunken ECC83 tubes. The tubes itself cost over €150. The unit is in excellent condition - both technically and cosmetically. Please note that the Power voltage is 120V and the power cord has a US plug. Upgraded EU plug audiophile power cable and step-down transformer can be provided at an additional cost. Shipping will be with insurance. Construction Details and Features: Phono pre-amplifier with tube output that will handle MM, MC and Dynamic head cartridges. Lowest Rated sensitivity at .25 mV – 85 dB. Low noise -57 dB Two Outputs RIAA, Line stage. Adjustable settings for cartridge type State of the Art Components: Gold plated RCA input jacks. R Transformer and Heavy duty Voltage Regulator SPECS: Frequency Response: 5Hz to 110KHz, (+/- 1 dB) SNR: > 100 dB Distortion THD: Less than .01% Input Impedance: 100Kohms Output Impedance: 600 ohms Phono Stage: MM: 60dB, 5 mV MC High: 75 dB, 0.5 mV – 1.5 mV MC Low: 85 dB, 0.25 mV – 0.5 mV Input Resistance: 100 ohm, 300 Ohm, 1Kohm, 47Kohm Input Capacitance 47 PF, 100PF, 150PF, 220PF Tube Complement: 2 pcs. 12AX7 Size: 17 in. (W) x 13 in. (D) x 2 in. (H) Weight: 10 lbs., 14 lbs. Boxed Tubes will not be included Power cord will be included at no additional cost