Yaqin :: MS-90B HiFi Integrated Tube, Class AB, Push-pull circuit, Triode Mode, Ultra Linear Mode, Bluetoot in, 2x 55W
Price: 1502.75 EUR ( 1221.75 EUR Net Price)
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Yaqin MS-90B #


Yaqin MS-90B is a power amplifier on KT88 tubes in a push-pull system with 2x50W power.

Yaqin MS-90B

  • Dual mono power amplifier design.
  • ultra-linear mode with 55W per channel
  • Triode mode with 28W per channel
  • Power amplifier based on 2 legendary KT88 power streaming tetrodes per channel
  • Preamplifier based on 2 dual triodes 6SN7 or 6N8 (and 1 dual triode 12XT7 per channel
  • 4 pairs of RCA inputs
  • 1 pair of variable sensitivity RCA inputs (0.25V or 0.6V)
  • 2 separate power outputs for 4 and 8 Ohm impedances
  • Frequency range of the frequency response - 5Hz-80kHz
  • Manual bias adjustment

Dual mono amplifier with a powerful 60W per channel. Possibility of working in two modes, triod with increased linearity and rich sound, or ultra linear mode with increased output power (selection of work on the top panel. It captures the scene very well with lots of details. The lack of any hum or noise is the advantage of high quality transformers used. It perfectly copes with driving columns with efficiency of 86-87dB.

Yaqin MC-100B

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Yaqin Mc-90B is a dual mono tube amplifier working in a push-pull system based on KT88 power tubes (indirectly heated tetrode) and the following control tubes: 4 double 6SN7 triodes and 2 double 12AX7 triodes. The set consists of integrated power amplifiers and a preamplifier in one housing with its own power supply.


The amplifier uses separate power transformers, a choke. High-capacity capacitors were used in network ripple filtering systems. The amplifier's front panel has an input selector, potentiometer knob and 1 pair of RCA line inputs with variable sensitivity. This sensitivity is changed by a switch on the front panel. We can choose from <= 0.25 or <= 0.6V. The amplifier has four RCA line inputs on the back. The rear panel has an RCA line input and power outputs for columns with 4ohm and 8ohm impedance

Yaqin MC-100B

The amplifier is equipped with a protective cage for llamas. A power cable, allen key for removing the protective cage, bias adjustment screwdriver and a set of fuses are added to the amplifier. Everything is placed in a solid housing.

Yaqin MC-100B

The amplifier sounds very dynamically, with beautiful deep bass and very good extension on the other edge of the band. He plays a very wide and deep stage. Resolution can be seen quickly, mainly in the mid and high range. Nothing blends together, no details are lost under the sheer volume of other sounds. The midrange is strong with very good separation of voices, detailed and clean. The nature of the treble is delicate with high detail. Bass can play low and soft, come on it's not spectacular. . The amplifier's microdynamics are at a fairly high level. All minor bumps, blows, jerks can be heard throughout the band.