Nobsound HiFi Bluetooth 5.0 JAN 5725 Valve Tube Preamp Bass Preamplifier Stereo Audio Headphone Amplifier USB DAC APTX

 
Warm tips:

1. Douk Audio P1 Preamp has been acclaimed by countless audiophiles worldwide, now we upgrade 6J5 to JAN 5725 tubes according to many audiophiles' feeback, the sound quality will greatly improved.

2. 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.
Features

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.

Parameters

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 Maxpower output
160mW 32Ω load
Working voltage
DC12V

Bass & Treble Range
±6dB
Product Dimension
180*118*36mm

RCA output level
2.3V
Product Weight
0.47kg

Frequency Range
20Hz-20kHz(±3dB)
Package Dimension
240*210*60mm

Packing List
1*P1 Preamp

2*JAN5725 Tube

1*Power Supply

1*USB Cable

1*Bluetooth Antenna 

1*Manual