Views: 0 Author: Site Editor Publish Time: 2023-09-18 Origin: Site
Three Factors Affecting the tube amplifier
Does the integrated tube amplifier need to add a preamplifier? Many enthusiasts have such questions. There are three factors here. One is whether the signal output by the audio source is large? The output signal of many foreign CD players is relatively small, and adding a preamp can amplify the signal. The second is the sensitivity of the speaker. For speakers with a sensitivity below 90dB, the sound performance will be better if the preamp is added. The third is the amplification of the tube amplifier. The standard integrated amplifier with a gain of 30dB can amplify the input signal by about 15 times. The integrated tube amplifier with a gain of 20dB has an amplification of about 10 times, which is slightly insufficient, and the dynamics will be lacking. If you have high requirements on the sound, it is best to add another pre-amplifier as a supporting set, and use the combined power amplifier as a post-stage. The front stage can increase the amount of amplification by 10 times, and the combined gain of the two units can reach 40dB. At this time, the post-stage will be pushed more easily, with high sound density, rich details, and stronger transients, and the performance of the audio system will be perfect.
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