300B pure class A delicate and resistant tube amp HIFI power amplifier 9W×2 20Hz--25KHz distortion:1% (1kHz) Обустройство дома - купить

Купить 300B pure class A delicate and resistant tube amp HIFI power amplifier 9W×2 20Hz--25KHz distortion:1% (1kHz) | Обустройство дома

Performance parameters:●Rated output power: 9W×2● Frequency response: 20Hz--25KHz● Total harmonic distortion: < 1% (1kHz)●Input sensitivity: 500mV--2000mV●Input impedance: 100KΩ● Output impedance: 4Ω, 8Ω●Signal to noise ratio: 88dB●Volume (width × depth × height): 370 × 250 × 200mm●Packing weight: 20Kg●Pre-stage tube: 6N8P ×2 After-stage power tube: Noble Voice 300B-se×2 Rectifier: Shuguang 5Z3PAT In the above picture, the rectifier tube is a dimming rectifier tube, and it can also add 500 yuan to replace the 274B rectifier tube of the noble voice. The high friend can add 700 yuan to replace the pair of nobles. The pre-stage tube wave bile 6SN7-SE  need to increase Bluetooth 4.0 reception needs to add $ 35 The 300B electronic tube is upgraded free of charge to the black screen 300B of the aristocratic voice exported to the United Kingdom. The domestic model 300B-SE is only supplied by the old Chen amplifier. The material work is basically the same as that of the replica. The cost-effective 300B has been mass-produced for five or six years, and its sales volume has exceeded 6,000. The stability is obvious to all. The amplifier continues to be a fine-handed scaffolding style of Aiqin gallbladder. The circuit is simple and neat, and the noise is controlled to a very low range. Sweet and delicate, soft and resistant, and without the magnificent momentum, it explains all the connotations of 300B. Refer to the new design of domestic and foreign circuits, using the classic name of the noble voice 300B for power amplification, 6N8P preamplifier, dimming rectifier, the picture is the dimming rectifier, thick aluminum alloy panel, classical double meter, solid core Aluminum knobs, 3-channel audio input switching, high-grade copper-plated sockets with a fever rating, pure gold-plated crystal posts, imported fever-grade capacitors, etc. all provide a powerful guarantee for the hum of the amplifier.