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Willsenton R-800i 300B 845 /805 Tube Single-ended Class A Integrated Power Amplifier

(1 customer review)

$3,299.00$3,599.00

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SKU: 4000833511014 Category:

Wouldn’t this be an exciting addition to your home audio system. Get it while you can, only 2 left, one of each. Can’t decide if you want a tube amp? See our blog post for more info: Are Tube Amps Better?

Willsenton R-800i 300B 845

 

 

Willsenton R-800i 300B 805

845 Features:
Hand welding point to point, the main circuit adopts shed welding
Two high-end EI type single-ended output transformers with high-end special technology and high-quality broadband response made of Z11 iron core
High-voltage power supply and filament power supply independently use high-efficiency toroidal, high-power power transformers with Z11 cores and special materials.
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 5U4G for rectification
The rear stage uses two 845 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 high-voltage delay and mute delay function (about 30 seconds)
Infrared function remote control
Use Japanese ALPS 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:
Rated output power: 23W + 23W (RMS)
Machine frequency response: 12Hz ~ 35kHz (-1.5dB)
Input sensitivity:845 = 300mV
Balance input: 280mV pure rear stage: 1800mV
Input impedance: 100KΩ
Output impedance: 4Ω, 8Ω, 16Ω
Harmonic distortion: 1% (1kHz)
Signal to noise ratio: 90dB
Left and right output balance: <± 0.5dB
Power consumption: 380W
Use vacuum tube: 12AX7 × 1, 6SN7 × 2, 5U4GX1
300B × 2, 845 × 2
Working conditions: temperature: 0 ° c ~ 40 ° c humidity: 20% -80%
Storage conditions: temperature: 20 ° c ~ 70 ° c humidity: 20% -90%
Machine volume: (440 * 410 * 275) mm
Net weight: 42kg
Gross weight: 48kg
Power supply voltage: AC 120
805 Features:
Hand welding point to point, the main circuit adopts shed welding
Two high-end EI type single-ended output transformers with high-end special technology and high-quality broadband response made of Z11 iron core
High-voltage power supply and filament power supply independently use high-efficiency toroidal, high-power power transformers with Z11 cores and special materials.
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 5U4G 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 high-voltage delay and mute delay function (about 30 seconds)
Infrared function remote control
Use Japanese ALPS 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:
Rated output power: 48W + 48W (RMS)
Machine frequency response: 12Hz ~ 35kHz (-1.5dB)
Input sensitivity: 805 = 280mV
Balance input: 280mV pure rear stage: 1800mV
Input impedance: 100KΩ
Output impedance: 4Ω, 8Ω, 16Ω
Harmonic distortion: 1% (1kHz)
Signal to noise ratio: 90dB
Left and right output balance: <± 0.5dB
Power consumption: 380W
Vacuum tube: 12AX7 × 1, 6SN7 × 2, 5U4GX1, 300B × 2, 805 × 2
Working conditions: temperature: 0 ° c ~ 40 ° c humidity: 20% -80%
Storage conditions: temperature: 20 ° c ~ 70 ° c humidity: 20% -90%
Machine volume: (440 * 410 * 275) mm
Net weight: 42kg
Gross weight: 48kg
Power supply voltage: AC 120V
Tube Amplifier Precautions:
1. Tube amp must connected with speakers before turning ON. Strictly prohibit send signals to amp without connected loads(speakers) or load short circuit when the switch is ON.
2. Too high or too low power supply voltage does irreversible harm to the amp,preferably less than 5% of the specified voltage. If your mains voltage exceeds this value, often best to use with the AC power supply.
3. Temperature is higher when tube amps working, placing attention to ventilation, cooling.
4. In the boot or just shut down for a period of time (within 30 minutes) Do not spill liquid on the tubes.
5. You should take about 100h time to operate the amp.RUN-IN to the amp gives it’s best and stable sound.so during the first 100h use time the sound maybe is not the best,you can also use your own run-in method.
6. If you donot sure how to plug the tubes, please contact us before try it
Speakers connection:
All tube amplifier used with stereo mode: L(left) and R(right) speakers.
Normally there are 6 speaker cable connectors: +8L, +4L, -0L, -0R, +4R, +8R
Example: +8L and -0L are for connecting with your Left 6-8ohms speaker
-0R, +4R is for connecting with your Right 4ohms speaker
Return Policy:
Brand Name

Willsenton

Origin

CN(Origin)

Maximum Power Per Channel

22W

Model Number

R-800i 300B 845

Package

Yes

Channels

2 (2.0)

1 review for Willsenton R-800i 300B 845 /805 Tube Single-ended Class A Integrated Power Amplifier

  1. S***a

    In the description are missing the screwdriver included. The screwdriver wasn’t in. A failure to dell’addetto packaging.

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