amplifier

If we want good quality sound system,the first thing to consider is that a good pre-amp.
Some people say that’s not necessary. But when the low-level audio source.
We may need to adjust the sound too high will cause distortion.
so should have the preamplifier to amplify a signal up before to the our power amplifier.

And I use transistors to build as small pre-amps because.

1. I am familiar with it than other devices. Even though the quality is good.
2. There are many to choose from build circuits.
3. Lower noise. Compared with ICs.
4. Cheap, easy to find accessories.
Seeing these advantages. Let’s consider circuits different example, I would suggest the following.

Read more and see circuits at source :http://www.eleccircuit.com/simple-preamplifier-circuits-by-transistors/

The V-DAC is a sensational state-of-the-art DAC. By any measurement its performance is way beyond so-called state-of-the-art competition. In fact overall the technical performance of the V-DAC is probably about the best in the world regardless of price. There is no trickery here. It’s simply that we use state-of-the-art digital components (these are very expensive) and implement them with state-of-the-art circuitry and layout. The secret is simple; there’s no ridiculous packaging, and absolutely no wastage on anything. The V-DAC is rather like an F1 racing car. It is completely funcitonal with no excess flab or wastage anywhere. Read more

This be tone control circuit ,The small-sized. It the character Mono by use transistor just 2 PCS important equipment performs to enlarge sound signal gives the power goes up ,and have a button fines to decorate the sound completely. It be fine decorate the popularity in the sound , fine decorate the treble , and fine decorate the bass as well. It is convenient for a novice wants to try build Pre Tone control circuit keep be usable.

Please read more and view circuit at: Tone Control Mono by 2 Transister (C945)

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This circuit Dynamic Microphone Preamp,Pre MIC 3 Transister mono.
By Transister Part C945= 3 part.(TR1-TR3) OR C828 OR C458
Supply Volt 12V – 24V.Easy to build and low cost.

Please read more and view circuits at : Dynamic Microphone Preamp Mono by Transister C945 (with PCB)

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Dynamic Microphone Preamp Mono by Transister C945 (with PCB)

This circuit Dynamic Microphone Preamp,Pre MIC 3 Transister mono. By Transister Part C945= 3 part.(TR1-TR3) OR C828 OR C458. Supply Volt 12V – 24V. Easy to build and low cost.

Read more and view circuits at : Dynamic Microphone Preamplifier Mono by 3 Transister C945

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