Yaqin MS-650B 845*2 Class A Single Ended Integrated Tube Amplifier Review!

The Yaqin MS-650B Single Ended Integrated Tube Amplifier is a power tube amp with high-end features. It is easily a favorite for many due to its wide frequency response and low output impedance. And the presence of large VU meters and heated power PSVANE triode 845 tubes, the Yaqin MS-650B produces nothing short of quality and professional sounds along with accurate volume control. 

A Unique High-powered Tube Amp

The Yaqin MS-650B tube amp is simply classy. In addition to its high-powered triodes, it also features separated Japanese made transformers in its power supplies. The transformers are designed with enameled high-intensity oxygen free wire and audio-compliant silicon sheet. The tube amp also features an automatic time lapse which helps to control the high-powered supply, extending the life of the tube.

Features and Specifications

  • Output Power: 2x15W (4Ω or 8Ω)
  • Frequency Response: 10Hz – 32KHz ± 2 dB
  • Distortion + SNR: <=1.5% (10W)
  • Input Sensitivity: ≤0.3V
  • Tube: 845×2 12AT7x2 12Au7x4
  • Load Impedance: 4Ω to 8 Ω
  • Maximum Power Consumption: About 200W
  • Size: 19x17x12 inches (L*W*H)
  • Gross weight: 39kg
  • Net weight: 36kg
  • Dimensions: L 420mm W 420mm H 350mm
  • Warranty: 24 months

The tube amp produces very balanced sound, free from discoloration and captures a scene with a lot of detail due to the absence of noise or breaks from the top quality transformer. It is especially great for high impedance speakers and compact construction speakers that do not have brass-reflex tunnel. 

Customer Reviews and Scores

The reviews on amazon.com revealed that the Yaqin MS-650B lived up to expectations. In describing its unique properties, one user said the tube amp is “a work of art with a fabulous tube sound”. The review of another user was proof that the sound of the Yaqin MS-650B is simply unique. The buyer says the tube amp is “such a beautiful amp that produces the warmest sounds!”. The blend of perfectly sounding transformers and audio sheets makes for amazing sound quality.

Of course there would be negative reviews. On one of such negative reviews, the user simply says “Don’t waste your time and money on it”. This review and comment is hardly helpful since it does not state any reason for the warning. With other users describing the Yaqin MS-650B in superlative terms, you can rest assured of the quality of the product. Its sound is unique, its structure is simply classy – perfect for a variety of functions and events.

The Yaqin MS-650B is a product I recommend – and this is for good reason. In addition to its top sound quality and remote controller that aids volume control, its low-noise, serene music background makes it a durable choice for any ardent music lover.

Check it out now at Amazon.com!


This amp made our list of the most popular high end tube amps – check it out!