China Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube Amplifier

China Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube Amplifier
Product Price: $1,765.99 USD
Product Model: China Audiophile R-800i
Product Quantity: 10 Units in Stock
Shipping Weight: 48 Kg

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Product Warranty
All items Guaranteed 100% Brand New In the original edition Box and Come from the original factory.
All items ONE-YEAR WARRANTY !!!
Shipping Time & Invoice Declare
All items ship with DHL/UPS/TNT/EMS, (DHL/UPS/TNT) About 3-7days delivery time, EMS About 7-15days delivery time.
We can Declare the Value of the Order as Customer's Remark!!!
Product Declaration

Purchase tips:
The appearance of 211.805A.845 is roughly the same. 300B pushes version 805. Special external high-pressure cap is available for players to replace the 805 tube to play, adding fun
3 types of circuit design are different
Power tubes cannot replace each other, each has its own merits

845 tube version:

China Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube Amplifier

805 tube version:

China Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube AmplifierChina Audiophile R-800i 300B HIFI Class A Power Amplifier Single ended 805/845 tube Amplifier

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 
 
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