| OK, here's some new ideas i have with help from you guys.
The attenuator:
The attenuator will have 1db steps instead of 1.5db steps, so the range will be from 0db > -23/24db (depends on steps, mine has 23 instead of 24steps).
To get more range i will tune the dim switch so that it starts at -24db > -48db.
I'm also seriously thinking of going for a T ladder type so that the impandance will remain the same all the time. (is 10k ok or should i go for perhaps 25k?)
There is one big disadvantage, to go balanced you need a 8 pole switch instead of 4, i'm not even sure if it's easy to get, i've seen 'm but i think they where not elma switches.
Unbalanced is not so much of a problem, you need 4 poles but what i understood from most of you guys is that unbalanced is fine and maybe even better.
Maybe it's a better idea to go realy based for the volume control, i can use a 1 pole 24steps switch then, have to figure that out how many relays i would need.
What do you think about this idea?
Active stage for input 3:
I'm thinking about this idea with a range of about +6db and -6db with a 12 steps attenuator for the AB comparsion.
It might even be a better idea to make the AB a pushbutton just as the other swithes on the panel.
Phase/polarity flip:
I had this idea from the beginning actually, don't ask me why i didn't implement it.
The only thing is that if i go for a unbalanced version it's quite hard (not even possible i think) to flip polarity without going active, which i don't want so that makes it quite hard.
I might even go for 2 versions of the controller, one balanced with a serial type attenuator like the one i build with a polarity flip button and another version as described above, T ladder and unbalanced.
The only thing i'm thinking of right now is the price it's going to be, the idea was a bit to get somewhere in between the avocet and cheapo controllers so that you have quality without paying TOO much.
What would you expect the price to be for a piece of equipment like this?
What about the idea of getting it custombuild? perhaps you want 0.5db steps att or you want 1 output but more inputs or you want a blue frontpanel etc. |