Hello all,
I hope your are not too tired of summing devices...but I have some questions left that I could not figure out reading old threads.
What I want to build: bal. summing 8 stereo inputs (bal., volume, mute, fixed L/R panning) split to xlr outputs and internal gain stage (CADAC mic preamps), stereo monitoring section switchable to summing output or 2 external bal. sources, volume control, mono, mute. 2 pairs of bal. outputs to drive different active monitors.
I want to keep it bal. throughout. The monitoring must not load down the summing output (to external A/D). I want minimum L/R level differences and next to no compromise in audio quality...
Questions:
1.) Do I want frontpanel gain control for the preamp - or do I simply calculate summing loss and build fixed gain? If gain control: does it need to be switched step (guess so)?
2.) I would like to transformer split the preamp out to a)xlr b)monitoring section. Makes sense? Which transformer? (one secondary to xlr, one secondary to monitor - or one direct?)
3.) monitor volume control: any option other then 4pole switched step attenuator? (please keep it analogue...)
4.) mono summing: better do it active or not?
5.) mute: simple switch/relay or FET based?
Thank you all for your input.
I hope your are not too tired of summing devices...but I have some questions left that I could not figure out reading old threads.
What I want to build: bal. summing 8 stereo inputs (bal., volume, mute, fixed L/R panning) split to xlr outputs and internal gain stage (CADAC mic preamps), stereo monitoring section switchable to summing output or 2 external bal. sources, volume control, mono, mute. 2 pairs of bal. outputs to drive different active monitors.
I want to keep it bal. throughout. The monitoring must not load down the summing output (to external A/D). I want minimum L/R level differences and next to no compromise in audio quality...
Questions:
1.) Do I want frontpanel gain control for the preamp - or do I simply calculate summing loss and build fixed gain? If gain control: does it need to be switched step (guess so)?
2.) I would like to transformer split the preamp out to a)xlr b)monitoring section. Makes sense? Which transformer? (one secondary to xlr, one secondary to monitor - or one direct?)
3.) monitor volume control: any option other then 4pole switched step attenuator? (please keep it analogue...)
4.) mono summing: better do it active or not?
5.) mute: simple switch/relay or FET based?
Thank you all for your input.
