Willsenton R300B Tube Amplifier 300B*2 Single-ended Class A Integrated Amplifier & Power Amplifier & Headphones amp All in One
Open Box(returned goods checked like new)
Willsenton R300B is an integrated Amplifier, it is a Power Amplifier too (there is a group Power amp input), it is a Headphones amp, too.
Declaration
ONE-YEAR WARRANTY !!!
Features:
Single-ended pure Class A tube Integrated amplifier
The body of Willsenton R300B use classic blue piano paint.
• Pure hand-made, Point to point manual welding.
• Two 5U4G vacuum tubes are used for high-voltage rectification. 1pcs of 6SL7 and 2pcs of 6SN7 vacuum tubes are used for the voltage amplifier and preamp stage.
The power amplifier stage uses two Willsenton custom-made 300B vacuum tubes for single-end Class A power amplification.
• Reasonable internal structure, with fever circuit, high frequency is clear and detailed, full frequency is full, low frequency dynamic is loose and powerful
• Use a square power transformer specially developed for this R300B tube amplifier
• Two wide frequency high-end EI type single-ended output transformers with high-end special
• Provide professional equipment input ports, R300B is equipped with multiple signal input ports, which can facilitate you to connect a variety of audio source signals, so that you can have different audio sources and different experiences
• Brushed aluminum alloy panel, using brushed panel, exquisite workmanship, comfortable feel, high-grade and elegant.
• Gold-plated port, a design that integrates quality and beauty, reduces signal loss, and has good conduction performance; the metal mesh cover can protect the beauty of the electronic tube, making it safer for users.
• Power on mute delay function, soft-start feature to prolong tube life (about 30 seconds).
• Infrared function remote control
• Use Japanese ALPS high-end potentiometer
• Peripheral power tube bias current adjustment function and power output level meter sensitivity switch
• Negative feedback circuit design
• Use thick silver-plated signal leads
• Headphones output 6.5mm jack
Product specification
Rated output power: 8W + 8W
Machine frequency response: 15Hz-45KHz(±0.5dB)
Total harmonic distortion: 1%
Signal to noise ratio: 90dB
Input sensitivity: 210mv (when be an Integrated amp)
620mV (when be a Power amplifier)
Input impedance: 100k ohms
Output impedance: 4Ω, 8Ω, 16Ω
Headphone output for impedance: 8 ohms - 32 ohms
Power supply voltage: AC 100V - 240V 60Hz/50Hz (100V, 110V, 115V, 120V, 230V,240V version will take 7-14 business days to order). 220v is in stock.
Volume: (W × D × H): 405 * 355 * 200 mm
Vacuum tube: 300B x2, 5AR4 x2, 6SN7 x2, 6SL7x1
Net weight: 23KG
Gross weight: 27KG
Power consumption: 280W
