Description

MM + MC Vacuum Tube Phono Preamp Stereo Audio Preamp for Turntable (no tube) Description Function: Note: no tube This product is available in 115V and 230V versions We will send it according to the voltage of the country of purchase, if you have special requirements, please leave a message. Available in 230v input and 115v input voltage versions. Feedback type mm/MC magnetic/moving coil phono amplifier Ups precision power supply test, Test tube BEL big shield three-layer mica low noise level ecc83 Input sensitivity (MM/2mv/47k) (MC/0.2MV/100R) Input sampling signal 1khz. Magnification (about 47db240 times / 65db/2000 times) Output noise residual <0.4mv SNR is about 78db This product is for experienced players to buy, do not expect to plug in the limited quality ecc83 will make a good sound. Try to choose a low-noise level of the tube, conditionally try to use 3 different sound styles of the tube, swap in different positions Adjust the style that suits your listening preferences. Each ecc83 is responsible for the first level of amplification, and does not require 3 tubes to be consistently paired. The single tube is internally paired. The highest quality tube is used in the first amplification stage. Ecc83=ecc803=12ax7=5751=6n4..... are the same model specifications for different country indicators. Do not place the machine next to the transformer of other machines. Plug in the tube and install the case before powering on. The complete installation of the case screw can ensure that it is not easily interfered. The tube amplifier is especially high-amplified and placed on the short-circuit input. When you open the maximum, there will be a little noise. The original machine will have the same. It is generally not possible to use the volume to the maximum. If there is obvious noise, first check the tube noise. Replace the position and place the low noise in the front. The negative noise level of the grinding signal base is reduced. The noise of the hand is increased. Please check whether the power line of the home power supply is good or effective. And whether the signal line outside the machine is specified at the high potential end of the shielding layer. The following conditions may cause the sound of the sing to produce a bathing sound. The electrical appliances with poor quality switching power supply at home may interfere with the singing, and the thyristor or energy-saving lamps may interfere with the singing. If there is strong high-voltage electricity outside the house, it will interfere. Singing, too close to the community transformer room will interfere with the singing. package: MM + MC Vacuum Tube Phono Preamp Stereo Audio Preamp for Turntable (no tube) Shipping Item will be shipped within 24 -48 hours after full payment is received. Normally the shippment to worldwide is used to take 15 to 30 business days, exclude Sat & Sun. Payment We accept PayPal only. Payment must be received in 7 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in ebay note when you pay the order. Any special request cannot be accepted after 24 hours of payment,because most of orders will be processed instantly and same day dispatched. Contact Us If you have any questions, please feel free to email our servicer ，and we will reply you ASAP. If no response within 24 Hours, please check the spam of mail box or kindly re-send it to us. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. If you haven't received item in 45 days, please contact us and we will arrange refund or resend Feedback We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you. We try our best to reply your email as soon as possible, please kindly allow 24 hours(working day) for us to response. Thank you. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact.