Hello,
Do you know the frequncies of electric guitar strings?
E A B D G E
....but do you know the frequency of each, i need to know so i can design the output filter of my class D electrc guitar amplifier
Do you know the frequncies of electric guitar strings?
E A B D G E
....but do you know the frequency of each, i need to know so i can design the output filter of my class D electrc guitar amplifier
Hi,
The harmonics extend right up to 20KHz, though most guitar amplifier
speakers have a huge peak around 5KHz and then die away, so you'd
probably get way with a 10KHz filter, but not much lower, ideally higher.
rgds, sreten.
The harmonics extend right up to 20KHz, though most guitar amplifier
speakers have a huge peak around 5KHz and then die away, so you'd
probably get way with a 10KHz filter, but not much lower, ideally higher.
rgds, sreten.
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Your filter frequency is more dependent on your switching frequency than anything else, but should obviously be higher than 20KHz to give full potential audio bandwidth.
It's your trade-off really. If the amp's going in a combo with a typical 12" guitar speaker that doesn't put out anything over 5kHz, then a -3dB point at say 10kHz will do fine and makes your filter design less demanding than choosing a higher corner frequency.
However, if it's a separate amp, and you might one day find yourself in a pinch, and wanting to use it say for makeshift PA, you'll be kicking yourself...
What is your switching frequency? If it's way higher than 20kHz, go for full audio bandwidth I say.
Choices, choices, choices......😀
However, if it's a separate amp, and you might one day find yourself in a pinch, and wanting to use it say for makeshift PA, you'll be kicking yourself...
What is your switching frequency? If it's way higher than 20kHz, go for full audio bandwidth I say.
Choices, choices, choices......😀
Hi,
I agree with the other posters but if your guitar speaker is like this :
A 10KHz filter is well good enough. FWIW the fundamental of the strings
of a guitar go from low E 82.5Hz to top E 330Hz, but that is irrelevant.
rgds, sreten.
I agree with the other posters but if your guitar speaker is like this :
A 10KHz filter is well good enough. FWIW the fundamental of the strings
of a guitar go from low E 82.5Hz to top E 330Hz, but that is irrelevant.
rgds, sreten.
And don't forget the open string freqs are not the limits, guitarists often will play on the high E at the 15th fret.
high thanks, switching freq = 100KHz.
I am just wondering about putting a low freq speaker like above, and a high freq speaker in series with it.....to get those high freqs sounded out
I am just wondering about putting a low freq speaker like above, and a high freq speaker in series with it.....to get those high freqs sounded out
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