Line Magnetic LM-508IA Class A Tube Amplifier Integrated/power amplifier 300B Push 805 48W2. Product features: - Power amp adopts audio grade with 805 output high power tubes as single-ended class A power amplification. Extra position 805 current adjustmentBIAS ADJ. And hum balance adjustment (HUM BALANCE).You can use a variety of brands and models tubes, listen to the different rhyme. Totally handmade, The whole machine adopts some welding booths. Interstage use the German high quality N - cap coupling capacitance. Using two high quality EI to promote output transformer and output transformer. Using the specifical development for the native circular area power transformer. With high pressure power supply and the filament preheating function, extend the life of the tube. Select the Japan ALPS high-grade motor potentiometer. Notes: We Also have Silver Color, If you want Silver, Take Notes or contact. Frequency response: 10Hz~50kHz(-1.5dB). S/N Ratio: 87dB A Weighted. Input Sensitivity: 200mV(Integrated) / 110V. Output Impedance: 4O, 8O, 16O. Usually it cost about 35USD-50USD. If you receive defective item, please kindly notify us within 14 days. This item is in the category "Consumer Electronics\TV, Video & Home Audio\Home Audio\Receivers & Amplifiers\Amplifiers & Preamps". The seller is "xasda" and is located in this country: CN. This item can be shipped worldwide.