Ampapa A1 VS Mini 5654 Vacuum Tube Preamp
Nobsound / Douk Audio is the only authorized distributor of Ampapa A1.
A1 tube preamp / phono preamp / headphone amp is the first product carefully designed by Ampapa, with high-end configuration, powerful functions and amazing looking. Ampapa, always devoted to exploring the design innovation of HiFi and amplifying all passion for music.
• Brand: Ampapa
• Model: A1
• Audio input: Phono MM / Stereo RCA
• Audio output: Stereo RCA / 3.5mm Headphone Jack
• Input level: 0.775V RMS (RCA) / 0.005V RMS (Phono)
• Frequency response: 20Hz-20KHz (±0.5dB) (RCA) / Ref to RIAA +/-2dB (Phono)
• Headphone output power: 125mW (32Ω)/62.5mW(64Ω)/30mW(128Ω)
• Headphone impedance range: 16-300Ω
• THD: ≤0.1%
• Output level: 1.5V RMS (RCA) / 0.6V RMS (Phono)
• S/N ratio: ≥106dB (RCA) / ≥80dB(Phono)
• Working voltage: DC 12V(≥1.5A)
• Package weight: 900g / 1.98lb
• Package dimensions (W*D*H): 260*145*78mm / 10.24*5.71*3.07in
Packing List
• 1*A1 Preamp
• 2*5654 Vacuum Tube
• 1*DC 12V Power Adapter
• 1*RCA Cable
• 1*Wiping Cloth
• 1*User Manual
• 1*Warranty
Ampapa A1 Mini 5654 Vacuum Tube Preamp Phono/Turntable Amplifier w/Tone Control



Douk Audio P1 HiFi Bluetooth 5.0 GE5654 Vacuum Tube Preamp USB DAC Stereo Headphone Amplifier APTX-HD
• Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN 5654 tubes according to many audiophiles' feeback, the sound quality will greatly improved.
• P1 has been redesigned and tested thoudsand of times during 2021, the latest version (from 2022/01/10) has great improvement in the circuit layout, performance and sound quality.

• With 3 kinds of audio input(Bluetooth/USB/RCA) and 2 kinds of output(RCA/3.5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience.
• Bluetooth 5.0 (QCC3034) supporting APTX-HD lossless transmission. PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac/Linux system, matching well with many audio devices such as iPod, Phone, MP3 players, TV, Blu-ray players, Echo Dot, CD players, etc.
• Adopting NE5532 op amp+classic 47 headphone amp architecture which can drive 32-300 ohms headphones, and a bypass switch is specially designed to turn on/off the tone control, more convenient to enjoy original sound or obtain more delicate sound with treble and bass control knob, adding much fun and higher playability.
• Exquisite appearance with proper size, blue and orange light decorating vacuum tube, makes it fashionable and attractive, bringing wonderful auditory and visual enjoyment, very suitable for home and desktop audio system.
Chip Architecture: CM6642+QCC3034+NE5532+classic 47
• PC-USB Input Sampling Frequency: 192K/24Bit
• THD: 0.01%
• PC-USB System: supported XP/W7/W8/W10/MAC/Linux
• Bluetooth VER: 5.0
• Headphone matching impedance: 32-300Ω
• SNR: 103dB
• Headphone Max power output: 160mW 32Ω load
• Working voltage: DC12V
• Bass & Treble Range: ±6dB
• Product Dimension: 180*118*36mm
• RCA output level: 2.3V
• Frequency Range: 20Hz-20kHz(±3dB)
• Package Dimension: 240*210*60mm
• Product Weight: 0.47kg
Packing List
• 1*P1 Preamp
• 2*GE5654 Tube
• 1*DC 12V Power Adapter
• 1*USB Cable
• 1*Bluetooth Antenna
• 1*User Manual

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