Hi. So i am building a small portable speaker out of some drivers i have laying around.
I would like to add bass and treble boost and cut like old radios used to have. So i need some simple, cheap circuit either passive or able to work from single rail 5v supply, Input would be fed from Bluetooth module and output would go into small amplifier boards.
Also it has to be able to be built on perfboard easily or it could be something pre made but cheap.
Thanks in advance for any suggestions.
I would like to add bass and treble boost and cut like old radios used to have. So i need some simple, cheap circuit either passive or able to work from single rail 5v supply, Input would be fed from Bluetooth module and output would go into small amplifier boards.
Also it has to be able to be built on perfboard easily or it could be something pre made but cheap.
Thanks in advance for any suggestions.
Helow There I Have Read Your Post And I Have A Good Suggestion For You This is Passive Tone Controller Circuit I hope You Like It or I have much More Tone Controllers If Need I Will Share You..
Here is 1st one
Attachments
Does cheap preclude a Baxandall active circuit for instance? With 5V supply you'd be limited to 5V capable rail-to-rail opamps, but they exist.
I'm presuming you want continuously variable bass and treble cut/boost, so you'll need two potentiometers minimum.
Note that a passive control will drop the signal level significantly (as it can't actually boost, the midlevel has to be a significant attenuation).
I'm presuming you want continuously variable bass and treble cut/boost, so you'll need two potentiometers minimum.
Note that a passive control will drop the signal level significantly (as it can't actually boost, the midlevel has to be a significant attenuation).
Have a look at rod elliott's preamp project with tone controls:
https://sound-au.com/project97.htm
... and his article about equalizers:
https://sound-au.com/articles/eq.htm#s4
https://sound-au.com/project97.htm
... and his article about equalizers:
https://sound-au.com/articles/eq.htm#s4
There are a lot of premade tone control boards for cheap on ebay. I don't know if their high fidelity but might be good enough for your purposes and a nice easy add on to yo
just read the very instructive explanation on rod elliott's site!
the preamp project (number 97) includes a volume and balance stage (figure 5) after input buffers with tone control (figure 1).