Little Bear P32 FU32 (832A) Vacuum Tube Headphone Amplifier Mini HiFi Preamp

Description

ONE Little Bear
Notice:
Input signal overload may cause distortion and noise. When this happens, please turn down the volume of the audio source until no noise and then adjust proper volume through the amp itself.
Features
Not only as a headphone amplifier, compatible with wide impedance range(12-200
Ω)
, but also as
a preamp for your other power amplifier, convenient and efficient to improve sound quality.
1*3.5 mm stereo jack input, can be connected to computer, CD, mobile phone and lossless player. 2*3.5 mm output can also be connected to digital amplifiers and active multimedia audio devices.
Default
Beijing FU32 vacuum tube,
can be upgraded to
GU-32/832;
Default NE5532 op amp, can be upgraded to OPA2604, JRC4558, OPA2132, OP275 and so on for enjoying different tones.
Mini size with attractive appearance, compact design makes it suitable for desktop audio system.
Parameters
Audio input: 1*3.5mm Jack
Audio output: 2*3.5mm headphone jack(
one for
12-40Ω
headphone and one for 40
-200Ω
headphone)
Power supply: DC 12V@2A(5.5/2.2mm)
Tube model: Beijing FU32
Op amp: NE5532
Color: black
Dimensions: (L)86 mm *(W)86 mm *(H)43 mm(Excluding the tube
)
Net weight: 320g
Packing List
1*Headphone Amplifier
1*Power Supply
1*FU32 Tube
Noise may be resulted from:
1. Low-quality audio cables, poor audio source can cause the static noise.
2. The tubes not are plugged well on the tube sockets or the two red wires are not inserted to FU32 tube.
3. Devices like routers, mobile phones will also interfere in the audio signal and may cause static noise.