Preamplifier U801 6J1 tube desktop power amplifier audio treble and bass gain pure preamplifier HiFi AMP | Электроника

Preamplifier U801 6J1 tube desktop power amplifier audio treble and bass gain pure preamplifier HiFi AMP | Электроника

Preamplifier U801 6J1 tube desktop power amplifier audio amplifier treble and bass gain

pure preamplifier HiFi AMP

Features

U801 is a pure preamplifier, not a power amplifier, does not have the function of power amplifier, mainly to optimize the use of sound. It is a cheap and beautiful sounding entry-level tube preamplifier. It can be used with common audio sources, power amplifiers, amps, and active speakers.

Use 6J1 tube

This machine is a pure bile preamplifier (only 1.5-2 times the voltage amplification capability). The tube 6J1 uses a classic triode amplifier circuit (high voltage power supply). It works in a class A state with a good sense of hearing. It is easier to match the post-amplifier. The power amplifier circuit can get satisfactory results.

Free adjustment of treble and bass

Can be connected to various power amplifiers, active multimedia speakers and other audio equipment,

Let your audio equipment have a bile sound,

With treble and bass adjustment function,

Achieve beautiful HIFI sound effect!

The circuit design is reasonable, and there is basically no noise. It is a cheap and beautiful sound entry-level tube preamplifier. Use it to add between digital audio sources such as mobile phones/lossless players/MP3/CD/decoders/computers and (headphone amplifiers/power amplifiers) to easily achieve the best match.

Product parameter

power supply:

Input voltage: AC: 100-240V 50/60Hz

Output voltage: DC: 6V/2000mA

Voltage amplification ability: 1.5-2 times

Audio input and output: standard 3.5

Power input port: 6V--5.5*2.5

Signal to noise ratio: >=110DB

Frequency response: 20-30K Hz

Volume: 105*69*32 (length*width*height plus 65mm after the tube height.

Weight: machine net weight: 205g

Link method:

1. Front end (mobile phone/lossless player/MP3/CD/decoder/computer) one by one double head 3.5 pair recording line/RCA<double lotus> to 3.5 line-U801 bile pre-stage one by one 3.5 to RCA <Double lotus> transfer line one by one post-level

2. Front end (mobile phone/lossless player/MP3/CD/decoder/computer)-a double head 3.5 pair recording line/RCA to 3.5 line one-U801 bile front stage one one one double head 3.5 pair recording line/RCA Double lotus> turn 3.5 lines one by one amp

For example: our existing amp is cascaded, and one ear is improved on the basis of the original amp system

Connection method:

Audio source-pair recording line-bile preamp (U801)-pair recording line-U303 headphone amplifier-earphone

Make your audio equipment full of guts, effectively soften the digital taste, enhance the sense of heaviness and presence, and express the sound field very well. The sense of hearing is strong, and it removes the harshness, burrs and sharpness of the digital sound. It is hard to hear, obviously improves the sound field and sound quality, makes the sound soft, warm and delicate, clear and transparent, full and natural, high frequency is clear and not sharp, mid frequency is open and transparent, and low frequency is clean and powerful.

The human voice is clear, and the singing voice seems to be in the ear, soft and patient, and enjoy the rich emotion of music. Especially suitable for feverish vocals, string music, light music, classical music and other music.