Circuit diagram of active tube speaker

At present, the power amplifiers in active speakers mostly use transistors or integrated circuits. Active speakers made with tube power amplifiers are rare. However, if you want to pursue single-color sweetness, you should still use tubes to make active speakers.

The characteristics of the tube power amplifier are soft and warm tone, clear and transparent layers, delicate treble, clear and bright midrange, and rich and full bass. Use it to enjoy music, the harmonics are rich and pleasant to the ears. The characteristics of the transistor power amplifier are clear and cool tone, strong treble penetration, loud and clear midrange, and strong and powerful bass. Use it to listen to jazz and rock music and you will be the best.

This article recommends a series of active speakers made of electron tubes to music lovers. You only need to plug in the power plug and connect the output terminal of the power amplifier in the speaker to the audio output terminal of VCD, VCR or TV to enjoy the music.

It is not difficult to make active speakers. If you have ready-made speakers, you can install them, remove some parts, and place the assembled power amplifier in them. The installation location should be determined according to the structure of the box. The internal structure of the tube active speaker is shown in Figure 9-55.

Circuit principle:

Installation and commissioning: