Tube Preamp ini bisa diganti tabung nya dengan: 6J1, 6J2, 6J4, 6K4, 6*1N Russia, GE 5654W, GE 5725W, 6AK5, EF95
Specification: Chips: NE5532 Treble adjustment: +6db Bass adjustment: +10db Power supply: DC12V/1A , more than 12V will burn out the diode. Frequency response range: 20HZ-20kHz (+3db) Distortion: <0.3% Input sensitivity: 0.2mV SNR: >101dB TND: 0.1% Control: Potentiometer Knob and Toggle Switch Audio Input/ Audio Output: Gold-plated RCA Preamp gain: 5 times Size: 118.5*98*33mm
Operation steps: 1. Make sure the VOL knob is at its minimum. 2. Insert the supplied tube into the tube holder in the direction (the tube does not matter, check whether the lower pin is deformed before installing the tube, and the deformation can be reversed by hand). 3. Connect the audio source you want to use to the audio input connector. 4. Connect the rear-end device that needs an external connection to the audio output connector. 5. Connect the DC12V power supply. 6. Turn the switch on and off to turn it on. 7. Turn the knob clockwise to select the desired volume level and high and low volume.