RAPHAELITE CS21 211 VT-4-C 13W*2 Hi-End Single Ended Tube Valve Amplifier W/ Input Transformer And 1:1.5 Interstage Transformer


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RAPHAELITE CS21 211 VT-4-C 13W*2 Hi-End single ended tube valve amplifier  W/ input transformer and 1:1.5 interstage Transformer,Delivery 13W output on 8 Ohm speakers.

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RAPHAELITE CS21 211 VT-4-C 13W*2 Hi-End single ended tube valve amplifier

Powerful 211 tube amplifier,Compatible with 845 tube by adjusting plate current

UP for sale is a integrated 211/VT-4-C single ended tube amplifier from Raphaelite,The amplifier has a decent vintage style chassis which familiar with vintage Western Electric type amplifier.

Raphaelite CS21 is perfect in every way especial the circuit, The first stage uses permalloy input transformer with selectable gain,Low distortion and no feedback required,Second stage is 6SN7/6N8P in SRPP configuration,The SRPP has advantage of high input impedance and low outout impedance,It makes a huge soundscape and air high-range.Third stage is 6V6 beam tube is connected as triode tube,Coupling capacitor between 6V6 and 6SN7 is JENSEN copper foil in oil Hi-End audio capacitor.6V6 plate is connected a 1:1.5 ratio step-up permalloy driver transformer to provide enough voltage swing for 211/VT-4C tube.There are two VU meters to monitor plate current of 211 tubes, Plate current and be precisely adjusted without reversing the amplifier.The VU meter's needel is swing when the amplifier is working.

Raphaelite CS21 211 single ended tube amplifier is even compatible with 845 tube,The power transformer and output transformer has sufficient power for 845 power triode tube, The plate currently must be adjust from 60ma for 211 to 80ma.The amplifier also can be used as a pure power amplifier without input transformer,The input transformer can be removed and shorted with a jumper.

Technical Parameters

  • Model: DS21 211/VT-4-C single ended tube amplifier
  • Tubes: 5Z3P/5U4G×1, 6SN7/6N8P×2, 6V6/6V6GT×2, 211×2
  • Input Sensitivity: 300mV
  • Rated Power Output: 2×13W (RMS THD<1% 1KHz)
  • S / N Ratio: 75dB
  • Input Impedance: 1KΩ
  • Output Impedance: 4Ω, 8Ω Or 8/16 Ohm
  • AC Input: 110V/120V/220V/230V/240V/50-60Hz (We will send according to voltage in your country by default)
  • Power Consumption: 230W
  • Frequency Response: 11Hz – 20KHz -3dB
  • Dimension: 450×320×285(W*D*H)
  • Net Weight: 36KG(38KG with package)

Packing List:

  • One Raphaelite DS21 211 single ended tube amplifier(power cord not included)
Tube amp working type Singled Ended

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