DIY DJ Mixer

[wooly]

I've been working on a DJ mixer for a while and thought I'd write a few bits and pieces on a blog since there isn't much information online about building DJ mixers:

https://fabricastronautblog.wordpress.com

Hope you enjoy!

 

[AndrewT]

I had a look at your DJ Isolator.

Tell us why we need an isolator.
Tell how your circuit has achieved that.
Show a schematic so we could DIY our own version if you persuade us we need similar.

 

[wooly]

Don't need one at all but it helps all the kids on drugs to go whhhooooaaaaahhhhh

I'm sure you are capable of drumming up at simple 6dB/Oct state variable filter in your sleep Andy, or read the references I posted.

 

[gpapag]

Don't need one at all but it helps all the kids on

wooly
There are other sites more appropriate for showing what such an audience is impressed by.
An Introduction To Mixing with DJ Isolators - DJ TechTools

Please consider your contribution to the diy community by posting useful technical information (walk us into the details of your modules, discuss schematics, show measurements).



Using this thread solely as a step toward your site, is not what is expected from members. In fact it is ‘touching’ on Rule # 11 violation.
http://www.diyaudio.com/forums/site-announcements/167561-diyaudio-rules.html

 

[wooly]

Admittedly, asking me to justify the need for an isolator was taken as antagonistic - I'm aware of their non-traditional use in the world of hifi. They are however an established tool in certain circles and have been for

As far as touching on - I do apologise if I gave you the impression this is the case, and concur that 1 or 2 posters like myself promoting their businesses doesn't make for a good forum - but I would like to point out that I don't sell anything that I make, pcbs or otherwise and my branding is for a personal sense of cohesion.

I hope people can enjoy my blog in the spirit it was intended, as a diary of my thoughts and the general ideas I had kicking around when working on things. I've tried to post the general inspirations and reference was I considered to be useful reading for someone doing the same thing, and deliberately left out any equations. At times I enjoy reading blogs like this and find them motivational, I had hoped that offering that to others could be my contribution.

 

[gpapag]

It’s all right wooly. I trust your good intentions.
Now, would you like to have this thread moved to PA Systems section?
PA Systems - diyAudio
I think it will attract more attention there

George

 

[JZatopa]

Wooly, this is an awesome project have you shared it on other sites like DJtechtools.com?

Personally I would love to own a Bozak CMA-10-2DL and this looks like a great project. Have you done any testing to see how your mixer measures (THD, FR, RIAA tracking, etc.)? I'd be curious to see how it performs, especially vs the original. I'd also love to hear if you have done comparisons with standard high end phono and preamp setups. I feel like that is a comparison that many DJs should do but never do.

Personally, One of the things I have dreamt of for years is a DJ mixer like this one but using modern circuits from this site. I envision a Pass ono, pearl 2 or possibly RJM phono circuit feeding a B1 for each channel.

The other thing I have always wanted is a modern tubed mixer using aikido style topology (although traditional circuits wouldn't be bad either). However considering how accurate and noise free I've found SS phono preamps I would still possibly want that part of the mixer to not be tubed.

Have you ever had any interest in similar projects?