ruffrecords said:
joaquins said:
Just the sort of input I am looking for. The first important point is you like to record clean. So this means the best place for the direct out is just after the mic pre and before the EQ. This just happens to be the way it is done in many mixers nowadays. This would also allow the main faders to be used for a monitor mix. From your track listing I am not sure if you do any sub mixes. Most of the inputs look like they can be direct. The only one I am not sure about is the stereo toms. Is this a sub mix of possibly three mics?
The only other thing I am not sure about is if you need any foldback mix for musicians when recording?
Then what about mix down? I guess from what you said you need a couple of post fader FX sends for reverbs and a couple more for DAW reverbs and tape delay - say 4 aux sends. You also need a stereo main mix bus and output. Also on this bus you need some returns from the reverbs etc. Presumably you need some inserts in this mode?. Would you normally expect these to be pre -fader and pre-EQ?.
Many thanks for the input.
Cheers
Ian
Glad to help, ask any doubts about my project, I'd started two topics, first in the mixer section and then in the drawing board to ask for some opinions. Here is the last one, where you find a link to the first where are more scheme and details. A lot since last update, no time in a while for it, nothing more than building some more boards and stuff in the mid time. http://groupdiy.com/index.php?topic=50205.0
Toms stereo could be a stereo pre mixed (in the box) of more than 2 mics, depending on the quantity of toms used. Same for OH, a drummer I recorded used all the cymbals on his right except one crash on the left, plus hi-hat where expected, so I decide it worth to put a stereo pair on his right to have a 'fake' (not the image you see of him but wider) and one mic to the crash and other to the hi-hat, so 4 mics on the OH bus. In any case it would be wonder to use all separate channels but not always possible because of the 16 outputs.
I do plan to use sub mixes, but in my project the idea is to have let's say 4 different summing amps so I can choose which to use as master and which to what as sub mix. Also I like to do some compression with something like an 1176 at the drums for example or compress the guitars with the voice in the side chain, so sub mix are needed there.
Also I record a lot outside my spot, so I can go just with the DAW and mic pre, and the desk sits at home. My idea for the desk is just use it for mix, not a problem if it helps for monitoring when I have it there in recording. In my project the desk has no mic inputs, just line, and the preamps are in other box, so count it as an insert point, when recording or just mixing, if you want to add something between the DAW and the desk.
Then I have in the desk 2 51X slots, so no much outboard gear used but if I add an insert point I'm pretty sure it would be after both 51X slots, so I can get the processed signal to monitor the musicians in their own tiny mixers (another project, just a simple mixer with levels and a headphone amp, couple of stereo channels and a couple of mono, maybe connected with UTP) and use the mixer alone without the 51X slots to sum when I'm processing in the box, or in the case commented in the other post when I sum the fx and the master.
I don't remember now and I don't have the eagle installed in this computer yet, but I leave a lot of buses ready to use with sends as pre or post faders, I thing I was thinking in 6, in case to use as monitoring. Oh, here it is, 14 buses, one is ground, 8 are for the 4 stereo mixes and the other 9 reserved for other mixes, all could be assigned pre or post, one or two could be reserved for PFL/AFL so 7 mixes for monitoring and FX. I use unbalanced buses because with a beefy reference (probably a cooper bar) it uses a lot of less opamps and I think I would be able to manage noise. Crosstalk shouldn't be a problem in a non-broadcasting desk. Also I use 22K summing resistors that at line level noise isn't big and current is small to be managed by a single ground. PS ground for decoupling and noisy sources (some eventual digital controller in some module) is completely separate even in the 51X slots, where I use one of the pins as reference and one as PS 0V. Anyway as it's completely modular if I want to change it sometime I just have to change one small board in each channel and bus and the busses boards of corse. In which case I maybe end using crimped wires to do so.
The project stage:
I already have the boards of the mixer designed and tested with prototype boards, also all (or almost, I think for 12 channels) the bus parts build is a board with the pan pot, assign buttons and mix pots points that connect directly to the main bus board. I also have the structure build and the front panels in process. For such a project I'm looking to a way to solve the PCB fabrication at home, I had a project for a CNC which would be used for front panels and PCB but the customs in my country make me impossible to buy the parts for it so I have to start planning again, maybe a much smaller one made out of old printer parts so I can do the boards with it and some help for the front panels. PS is also builded but not housed. When I finish the mixer it self I need to start to build 51X projects to fill it.
The project is 150miles from me, because I'm at the university so I build some parts in my holy days that are fewer and fewer, is a long term project but I can't wait to sit and mix in my own mixer... which would be in many years at this speed. Next week I have a seminar with Saul Walker (API) which I can't miss, because 1608 is my inspiration for the project... Not coping it but I looked it a lot when planning it. My summing amps and channels are my design, all DOA used with IC servos, non coupling caps, optional transformer outputs. Some DOAs are like 2520, some as Urei MOD1 and maybe some as 990 if I can build them.
JS
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