Guitar Electret Mic, Preamp & Practice Amp!

Circuits for treble bleed and loudnessThe volume controls are in practically every audio device. Simple amplifiers, TVs, and REAL Fender guitars, use logarithmic potentiometers for volume and linear ones for tone controls. Potentiometers are marked with an "A" for logarithmic taper, a "B" for linear taper or "C" for the rare reverse logarithmic taper. TIP: If you need a reverse taper they are commonly used in one half of 'balance' controls.

Devices with real HiFi quality often use 'so-called' LOUDNESS or 'physiological' volume control. Human hearing is not equally sensitive to all frequencies, especially for quiet sounds, as it is much less sensitive for low and high frequency signals than for middle frequency signals. The LOUDNESS controller works so that the lower the volume, the more it emphasizes low and high frequency signals.

Treble Bleed: Introduced by Fender, provides HALF the function of 'Loudness' in that it boosts treble frequencies (only) at lower volume. Thus a guitar performer's sound can still 'cut through' at lower levels.

Loudness: It does treble bleed PLUS bass boost at lower volumes fleshing out the tonal range. It is also VERY EFFECTIVE on voice. BONUS! You may do not need tone controls at all!

My verdict: For a few very cheap extra parts, at around a pound, you get a more satisfying result.


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