REISONG Boyuu A50 MKII 300B tube hifi intergrated amp Single-end Class A

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  • Product Model: Model: MUIA9831347
  • Product Weight: Shipping Weight: 21kg
  • Product Quantity: 0 Units in Stock

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Boyuu A50 MKII 300B vacuum tube amp Single-end Class A HiFi audio intergrated amplifier

When the MKII version don't play music this MKII version have the loud ground noise at than 3 meters or more, if you don't mind the loud ground noise, you can get this MKII version.

The upgraded version MKIII link below have little ground noise,
Please Click here to visit the MKIII upgraded version
The price is NOT included the tube cage cover. if you need the tube cover, plus extra $35 USD to get it.


An aluminum alloy panel is added on the front for a more sophisticated look.
The power tube adopts the noble sound audio special tube 300B.
The overseas players use A50 to optimize the line, which further highlights the density and taste of the intermediate frequency and the low frequency.
A dynamic level meter has been added.
Optimize the scaffolding method and adopt the new scaffolding.Hand welding point to point
Power Transformers: new imported 0.35, stack thickness 60MM (105-60).
Output amplifier core: core 0.35 new imported thick high silicon (86-50).
Japanese production of ALPS potentiometer.
Chassis: imported mirror stainless steel chassis.
Aluminum panel: high-grade aluminum CNC machining, anodic surface treatment.
Output Block: High-grade export base, with a transparent cover.

Voltage amplifier tube: 12AT7 × 1
Voltage push tube: 6P6P × 2
Power output tube: 300B × 2 (Brand PSVANE)
Rectifier: 5Z3PAT × 1
Output power: 8.2W x 2 (Class A)(no feedback technology)
Frequency response: 30Hz - 42KHz
Output impedance: 4Ω, 8Ω
Total harmonic distortion: ≤ 1% (1kHz)
Input sensitivity: 750MV
Input impedance: 100KΩ (3 group of input jacks)
Volume: 375 W x 290 D x 180 H mm
Packing volume: 500 W x 450 D x 290 H mm
Signal to noise ratio: 89DB
Net Weight: 18 KG
Gross weight: 21 KG
Input Power Voltage: AC100V - AC240V(60Hz/50Hz)(100V, 110V, 120V, 127V, 230V, 240V version will take 3-14 work days to order. 220V version is in stock.
Package included:
Boyuu A50 MKII KT88 vacuum tube intergrated amplifier:1
Power cable with plug of your national standard: 1

All items guaranteed 100% BRAND NEW in the original edition Box.

This product was added to our catalog on Wednesday 20 September, 2017.