XiangSheng Music Curve D-2023 KT88 vacuum tube Integrated Amplifier HIFI EXQUIS Parallel Class A amp Standard Version

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New product



  • KT88 Power Tubes
  • KT100 Power Tubes

This is Xiangsheng D-2020's evolution version: D-2030, the different between D-2020 and D-2030 is D-2030 is a Parallel Class A tube amplifier, and D-2020 is a push-pull tube amplifier, D-2030's power is less than D-2020, but the sound style is close than a single-ended tube amplifier.




  • Rated output power: 20W * 2 (8Ω triod connection method)
  • Frequency Response: 20Hz ~ 30kHz ± 1db
  • Total harmonic distortion: <1% (at 1 kHz)
  • Input Sensitivity: 500mV
  • Input Impedance: 100KΩ
  • Output Impedance: 4Ω, 8Ω
  • Signal to Noise Ratio: 89dB
  • Tubes for Preamp. Part: 12AT7 * 2 , 12AU7 * 2 , 6N6T * 2
  • Rectifier: 5Z3P * 2
  • Power tubes: PSVANE HIFI serie KT88 *4
  • Power supply voltage:      110/220V 60Hz/50H
                          100V, 110V, 120V, 127V, 230V, 240V version will  take an additional one week produce days )
                          220V version is in stock
  • Dimension (W * H * D): 460 * 180 * 360mm
  • Net weight: 19.5KG
  • Gross weight: 23KG


  • Using silver 1.0mm thick brushed stainless steel craft box.
  • Wrinkle paint process cattle enclosures.
  • metal knob cap, the cellular machine feet.
  • the use of gold-plated RCA signal input lotus seat.
  • Adopt with oxidation amber gold-plated output terminal.
  • red cherry wood side of the decorative sheet, elegant and dignified.
  • Blue LED power indicator.
  • The pre-amp tube Description:
  • 6N6T: high mutual conductance (S = 11mA / V), the amplification factor (u = 20), low internal resistance (Ri = 2KΩ) tube.
  • 12AU7: well-known low transconductance, the high resistance of the communication measurement tube.
  • 12AT7: the burning world "quite famous air excellent sense of wideband, low noise



roduct Features:

  • Output transformer use 0.35mm audio-specific silicon silicon steel layer and section wound around technology size is 96mm * 40mm.
  • Power transformer silicon steel: 114mm *  60mm. High-quality nylon frame, high-purity oxygen-free copper wire.
  • Taiwan production W.L Wizard potentiometer volume control.
  • Input within the machine using Teflon silver plated shielded signal lines, strong anti-interference, reduce the transmission missing.
  • German WIMA red MKP polypropylene coupling.
  • PCB model using sets of domestic production and some carbon film resistors; scaffolding welding models feature military Dahongpao metal film resistors, carbon film mix.
  • High-voltage secondary rectifier, 5Z3P * 2 gall rectifier, four imported large filtering capacitors and two inductor filters.
  • Reference to the improvement of the classic circuit, famous 12AT7 * 2 voltage amplification, 12AU7 * 2 phase inversion, 6N6 * 2 cathode output driven, push-pull class AB amplification. A wider frequency response, phase shift to smaller, higher fidelity.
  • Transformer with epoxy potting, solid and reliable, high temperature, insulation, moisture, shock absorption and play a role, can greatly reduce the magnetic coupling through the chassis to reduce resonance, and reduce noise.


By default use PCB circuit architecture style:

For the manual scaffolding style option, you need pay an addional fees of 40USD:


HIFI EXQUIS use Original PSVANE factory quad matched HIFI serie KT88 tubes:

HIFI EXQUIS use security double pack to this amp:


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XiangSheng Music Curve D-2023 KT88 vacuum tube Integrated Amplifier HIFI EXQUIS Parallel Class A amp Standard Version

XiangSheng Music Curve D-2023 KT88 vacuum tube Integrated Amplifier HIFI EXQUIS Parallel Class A amp Standard Version