R800i 300B 805 Tube Single-Ended Class A Integrated Amp & Power Amplifier with Balanced XLR Input

Description

Features: The whole machine is designed with aluminum alloy casing. It adopts imported materials and is tested and inspected in strict accordance with European standards. The front stage uses one 12AX7 and two 6SN7 vacuum tubes; the driving part uses two 300B electronic tubes to amplify the rear stage. The front stage uses a 274B (fishhook style) for rectification The rear stage uses two 805A vacuum tubes for class A single-ended power amplification Five groups of signal input A, B, C, (D) BALANCE, E (PREIN) This machine is specially equipped with balanced input function and pure rear function Power on mute delay function, soft-start feature to prolong tube life (about 30 seconds). Infrared function remote control Use Japanese high-end potentiometer Easy to install plug in vacuum tube shield Peripheral power tube bias current adjustment function and power output level meter sensitivity switch Soft, pure and sleek sound, suitable for listening to various types of music Product parameters: FTC rated output power: 20W+20W (8 ohms, 20HZ-20KHZ, THD 1%) Rated output power(not tested under the FTC standard): 38W+38W Whole machine frequency response: 12Hz-25KHz(-1.5dB) Harmonic distortion: 0.5% (1W/1kHz, rated output power less than 10%) Signal to noise ratio: 88Db (weighted by A) Input sensitivity: 380Mv (Integrated ), 860Mv (power stage) Input impedance: 100k Ω Output impedance: 4 Ω, 8 Ω, 16 Ω Power supply voltage:~ 115V±5%（50Hz） Whole machine volume: 440x410x275mm (WxDxH) Using vacuum tubes: 12AX7x1, 6SN7x2, 300Bx2,805x2,274Bx1 Net weight: 42kg Gross weight: 51kg Power consumption of the whole machine: 380W