MUZISHARE R90 Tube Preamplifier Phono Stage Preamp MC/MM XLR Balance Input

Product Description: Power transformer made of Z-1-1 iron core with high-end special technology and special materials. The main circuit of the front stage uses two 12AX7 vacuum tubes and four 6KE8 vacuum tubes. The phono circuit uses two 6KE8 vacuum tubes plus R-I-A-A circuit to realize MC/MM function The high-voltage power supply uses a 17BE3 vacuum tube as tube rectification and a 12DT5 vacuum tube as a tube voltage stabilization circuit. Fixed high and low frequency point enhancement selection function, with a direct selection switch. Six groups of signal input (MC-H, MC-L, MM, CD, AUX, BALANCE) This machine has specially added two groups of RCA output and one group of balanced output functions. Power-on high-voltage delay and mute delay function (about 30 seconds). Select Japanese A-L-P-S high-end potentiometer. Peripheral output level indicator function. The sound is soft, pure and smooth, suitable for enjoying various types of music. Main amplifier circuit specifications: Gain: 16dB Harmonic distortion: 1% (1kHz) Frequency response: 15Hz~30kHz (-1.5dB) Input sensitivity: 180mV Input impedance: 100KΩ Output impedance: 5KΩ Signal-to-noise ratio: 95dB PHONO specifications: Power supply:115/230V (switchable) Gain: MM: 50dB; MC: 72dB Harmonic distortion: 0.08% (1kHz) Frequency response: RIAA bandwidth: 0.25dB 20Hz to 20KHz Input sensitivity: MM: 6mV; MC: 0.5mV Input impedance: MC: about 100Ω; MM: about 50KΩ Signal-to-noise ratio: MC: 78dB; MM: 85dB Left and right output balance: <0.5db Power consumption: 65W Net weight: 13kg Vacuum tube used: 12AX7 x2; 6KE8 x6; 12DT5 x1; 17BE3 x1

• Power transformer made of Z-1-1 iron core with high-end special technology and special materials.