DJ 6 channel Mixer (4 mono + 2 Stereo)

[chris8477a]

Hello everyone.

This will be my first project undertaken, appologies in advance for my lack of understanding/stupidity but hey - gotta learn somehow..lol

OK, as stated Im in the process of designing a DJ Mixer, there are many stages in my mind as to what I want the completed item to resemble such as Scratch/jog wheels, USB interraction to PC, however at the moment Im just concentrating on the Audio side for the moment.

Attached is a basic flow diagram that I have created, could I ask that you browse this to ensure that the flow is correct.

I appreciate in advance any assistance recieved throughout my project.

Chris

 

[davenn]

hey chris
welcometo the forums

does the 6.5 in a box refer to a 6.5 mm phono socket ?

if so thats ok for headphone sockets and often used for line input sockets
For microphone sockets the preferred input connector is a 3pin XLR (cannon) socket as any decent quaslity microphone purchased will be terminated with these.

Also for mic inputs they need to be balanced inputs, else you will end up with all sorts of earth loop etc hum problems

Dave

 

[OLIVE2222]

Hi Chris,

This is a cool project. As all channels are similar I suggest to build the mixer on modular way with 7 input boards and one summing/output board. Also maybe the inputs board can be all the same with a mic/aux switch to make it more versatile.

About the echo do you have any part/schematic in mind or is it the level control of an external echo ?

cheers,

Olivier

 

[chris8477a]

Hi,
Thanks for the post, Yes 6.5 is for mic sockets, this is because most
Wireless mic's I've seen have the same and not xlr, That said. Will review plans and repost, must be possible to have both as I'm sure I've seen on some mixers.
Make perfect sense to avoid noise on each input. Lol

 

[Ian]

Thread closed on request, as updated info is over here:

https://www.electronicspoint.com/custom-dj-karaoke-mixer-scratch-pad-laptop-t242160.html