Thank you sir.
But I have a doubt.
Is the blue wire un-connected? Or is it connected to the M+ section?
Also my mic came with a 2 pin jack.
Can this circuit work with a 2 pin jack?
(This will save me from buying another cord or 3 pin jack. )
Could you kindly draw a diagram for a mic with 2 pin jack?
Attachments
Last edited:
I connected this way now. Please see the attached picture.
Over all gain increased when I shortened M- and Gnd. Earlier ML3 output level was not so good.
ML3 output is louder now.
Equalizer function is very satisfactory.
But some problems.
1. There is very low output even if the volume is zero.
2. Microphone level is still not good at all. 🙁
3. Noise and distortion become prominent when I increase ML3 volume to some 70%.
Since so many people have made ML3 and appreciated it a lot, something must be wrong with my build.
Well, I tried my best to fix the mic problem but for me the mic is not upto my expectation or simply unusable though equalizer section is pretty good.
Any help to resolve this issue is much appreciated.
Thank you.
Over all gain increased when I shortened M- and Gnd. Earlier ML3 output level was not so good.
ML3 output is louder now.
Equalizer function is very satisfactory.
But some problems.
1. There is very low output even if the volume is zero.
2. Microphone level is still not good at all. 🙁
3. Noise and distortion become prominent when I increase ML3 volume to some 70%.
Since so many people have made ML3 and appreciated it a lot, something must be wrong with my build.
Well, I tried my best to fix the mic problem but for me the mic is not upto my expectation or simply unusable though equalizer section is pretty good.
Any help to resolve this issue is much appreciated.
Thank you.
Attachments
I think that the blue wire from mp3 must conected to GDN too ....
You have line + and line - this mean that is balanced input
I`m right sir mile ?
Tone Control
Hello Mile,
Please elaborate the difference between Post#52 & 209 and may you share the PCB.
Rgds
AD
Hello Mile,
Please elaborate the difference between Post#52 & 209 and may you share the PCB.
Rgds
AD
Redraw
I tried redrawing APEX ML3 by adding 1 volume last.
I tried redrawing APEX ML3 by adding 1 volume last.
Attachments
Last edited:
ASK
http://www.diyaudio.com/forums/atta...4832495-mic-line-eq-preamps-apex-tone-sch.jpg
if I want to change the volume becomes Gain, what components should be replaced Sir Mile???
http://www.diyaudio.com/forums/atta...4832495-mic-line-eq-preamps-apex-tone-sch.jpg
if I want to change the volume becomes Gain, what components should be replaced Sir Mile???
Attachments
Last edited:
Hi Mr. apexaudio,
For this preamp
if i use supplay + 15 V, what the componen must be replace?
(sorry my engls is bad)
Regard
Replace 33k resistors with 20k