Condition:New
Type:Logic ICs
Model:300B

Fantasy Famous Tube 300B Biliary Machine Power Amplifier,Pure hand-made, limited to 10 sets per monthMature circuit design, high-performance output transformer, all produced by our engineers, but also you really 300B sound, high-frequency slender(Triangular iron overtones are abundant)Medium frequency is full and mature (maybe noble voice 300B factory pronunciation style, maybe beautiful tone dyeing), deep under low frequency, full of tension (drum skin tightness can be fully felt.) The ranking of musicians, the expression of singers and the gestures of playing are fully displayed in front of us... The machine also has a secret weapon, wearing a pipe cover sound, strong and dynamic, excellent low-frequency control, naked pipe voice lingering soft, autumn wind drizzle...

1: This machine is driven by the antique 6F3 (6BM8) compound pipe, and its sound is exquisite (0.8MA, U:55 small signal amplification transistor 6SN7 needs 3-4maU:13-15), dynamic range is large (-11v, u:10 driving level 6sn7-6v, u:13), strong driving force (110vpp) enough to feed 300B (-70v), reduce distortion, noble tone natural water to canal! 2:High-performance packaged output transformer adopts complex technology and high-tech design. It adopts 86*45 iron core imported from Britain, chooses high-quality enameled wire by numerical control drying, vacuum impregnation and moisture-proof packaging. It is refined as follows: 3: adopting reasonable wiring layout; Manual canopy construction reduces the distributed capacitance and widens its high frequency expansion. Reasonable foreign old-brand supplement accessories, this machine has been a year of competition, it is recommended not to change or upgrade any pipe, because we do not do business, I only pursue sound (only limited to more than 10 monthly single shipment), because the above accessories have been tuned to a sound limit level, we sell sound. Music, which sells technology, conveys music spiritual culture...

Machine accessories parameter list:

Power Bull: 105*70 Upgraded British Red Bull Core (250W)

Choke:Upgrade 76*50 Red Bull Notched Core

Output transformer: 86*45 (Upgraded Red Bull Core)

300B Electron Tube: Noble Voice

Push pipe: old Shanghai 6F3 (6BM8)

Rectifier: Nanjing 5Z2P*2

Function: 20 seconds high voltage delay device (prevent rectifier tube from jumping)

300MA monitor ammeter (can monitor the working state of the machine at any time)

Distortion: less than 1.5% (1kHz)

Frequency response range: 15HZ-28KHZ



Input sensitivity: 200 mV

Input impedance: 50-100K

Output impedance: 4, 8

Signal to Noise Ratio 87dB (in order to ensure the charm of 300B voice using pure AC power supply, 20 CM away from the speaker can not hear any noise, if DC power supply can reach 90DB)

Power consumption: 150W

Working Conditions: Temperature: 0 - 40 degrees

Working power: 8W+8W

Weight of whole machine: 18KG

Three dimensional:

450*230*200

(mm)












Wide! Deep! Height!

Wiring: