![]() ![]() You aren't changing the impedance of the inductor (pickup.) It also goes up as the value of the inductor increases. Inductors let DC pass just fine, but their impedance goes up the higher the frequency. Inductors are the opposite of capacitors. The pickups on your guitar are inductors - basically just coils of wire. I'm not going to get into calculating the cutoff of a filter - there's plenty of explanations on the web that go into much more detail than I want to.įor the other side (resistor changes sound,) we have to look at inductors. For working with filters (the capacitor/speaker combination is a high pass filter,) this point is defined as the point where the amplitude is reduced by half (that's -3dB.) The lower the frequency, the more it is blocked.Īt some point it is no longer noticeable. It also impedes the flow of other frequencies. At DC, a capacitor is very close to an open circuit - DC cannot pass. In order to get more bass, you have to use a larger capacitor in series with the speaker.Ĭ1 in your circuit is there to block DC from the amplifier. ![]() For the same frequency, a small valued capacitor represents more resistance than the large value capacitor. A capacitor with a higher value will have a lower impedance than a capacitor with a lower value. The impedance of the capacitor also depends on its value. The lower the frequency (bass sounds) the higher the impedance. The impedance (think of it as resistance) of a capacitor changes with the frequency of the signal passing through. I understand we are changing the impedance, but why do they sound so different at different impedances.? The resistors become like presets of music equalizers. This seems to work in a cd player to music system too. Why does this setup, act like equalizers? The resistor i connect is in the positive terminals, not ground ones. I have tried lots of values, some of them are, 330k, 470k and others in that range. Introducing a resistor value, between the amp and the guitar, changes the way the guitar sounds. In an electric guitar and amplifier setup.So, what is the real reason for them to sound the way they do? In physics or mechanics or electronics sense. A 330uf capacitor sounds like it has more focus on the vocals. A 1000uf capacitor, has a uniform distribution of frequencies more or less. For example, an amplifier circuit with a 470uf capacitor, has more bass, and treble. I have seen that different value capacitors in an amplifier circuit, sound different. ![]()
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