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Raphaelite 2022 New CSM45 Mono Block Balanced 845 Tube Amplifier HIFI EXQUIS XLR Customized 2A3 Lamp Amp for pair

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New product


Raphaelite 2022 New CSM45 Mono Block Balanced 845 Tube Amplifier

More details




  • With all tubes
  • Without tubes

 The price

is for the two blocks : left and right amplifier


Customized version

  • This amp is a customize product, so it need about 10 days work time, please pay attention, and contact us before purchase to check if we have ever some stock.

  • The price is for pairit's a high power, low distortion amplifier

Technical Parameters:

  • Tubes: 5Z4Px4, 12AT7x2, 845x2, 2A3x2,

  • Input Sensitivity: 242mV

  • Power Output: 2 x28W (RMS THD<5% 1KHz 8Ω)

  • S/N Ratio: 85dB

  • Input Impedance: 100Ω

  • Output Impedance: 4Ω - 8Ω

  • Input voltage: AC 110v-120v or 220v-230v or 240v 50/60hz

  • Power Consumption: 223W

  • Frequency Response: 10Hz-20KHz (+-3dB)

  • Size:  475mm×420mm×275mm(W-D-H)

  • Net Weight:33.3KGX2

  • Pacakges: 2 packages x 35kg for amplifier + 1 package 20kg size weight  for tubes and covers


  • Use of full coupling output transformers gives the 845 a more powerful drive capability, easily responding to the negative repellent 845 J5; the noble 845T is energy efficient. The sound is also tbi early dawn 845 splendid extravagant.

  • Double 5Z4P rectifier per block, The delay feature of the side heat pipe is the valuable 845 power biliary power supply.

  • The 845 and 2A3 are all DC powered, with a voltage regulator circuit, which makes it stable and low noise output is meager. The circuit easily uses the front-end CD without adding the pre-stage CD.

  • True natural output every detail 845 tube 1000V B pressure application, let the power of the last stage less than 5% distortion When it reaches 28w In the same type of A1 class 845 circuit at one end, the output reached the maximum.

  • Intermediate frequency quiet and heavy, high frequency and meticulous, has some reserve power, driving force is obviously better than 300B. It can be said that this is a relatively demanding speaker and music Software very adaptable HIFI single ended amplifier.

  • Equipment matching instructions: input impedance 600 ohms (unbalanced) 150 ohms (balance), this is appropriate to match a sensitivity higher than 86DB plus speakers. Output impedance 4Ω and 8Ω square ohms should be connected to the 8Ω output terminal.

  • All system have 3 levels preamplifications,

  • The first made by two special preamplification transformers, and then 12at7, and then 2A3 for driver+driver transformers,  offer 1.5 upgrade gains to driver 845 tube,  make a max power for 845 power tube

  • 845 and 2A3 use DC filamment alimentation

  • Many other updates for the new version,  description will be updated it later soon



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