AIYIMA Upgraded 6K4 Tube Preamplifier Amplifiers HiFi Tube Preamp Bile Buffer Auido Amp Speaker Sound Amplifier Home Theater DIY

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Product description:

This product is a tube pre-amplifier and needs to be connected to an active speaker or power amplifier.

It cannot directly connect speakers and passive speakers, headphones, phono amplifiers, cars.

Product name: tube preamplifier

Tube: 6K4/6A2/6J3（The tube is disassembled）

Power supply: DC12-16V, current 1A or more (DC12V 1.5A supply power is recommended)(without supply power)

Power socket: DC3.5/5.5*2.1

Product support replace tube: 6J1 6J2 6J3 6J4 6J5 6A2 6K4 6K5 6AK5 6AU6 6BA6 6BD6 EF93 6K7 GE5654 etc.

Pre-stage magnification: voltage magnification 5 times

Pre-stage frequency response: 5HZ-500KHZ

Pre-level sensitivity: 3V

Audio input: low-level signal input such as mobile phone, CD, computer, TV, MP3, etc.

Audio output: connect to power amplifier or active speakers

Size: 87*75MM

Note:

The tube preamp is a class A amplification state.. It is recommended to use shielded wire for the signal wire. Common wires may cause leakage or noise.

The high-fidelity lift can be adjusted freely, and the three-gear adjustment with a wave switch.

The switch on the far left is Hi-Fi

The switch is in the middle to raise a

The switch on the far right is the lift two.

Note:

1. If the signal line is not shielded or the power supply is not well filtered, noise may be generated. It is recommended to use shielded wires and a clean power supply for testing.

2. The tube buffer is amplified by about 5 times. The pre-amp has an amplification function, which is connected between the audio source, the pre-amp and the power amplifier. The noise from the audio source is amplified, so please use a good audio source to test.

Package included:

1Pcs 6K4 /6A2Tube Preamp（optional）(without supply power)