Two preamps in serial?

Direct to the converter.



The signal from the board's output will be too hot for the preamps.

No but why introduce more noise?

Nice preamps. You could take 6 mic channels through those and then split two ways: to the converter and to line inputs on the A&H board. Allow the less important mics to go into the A&H, and for those channels use the channel direct outs straight into your converter.

Boswell wrote: You could take 6 mic channels through those and then split two ways: to the converter and to line inputs on the A&H board.

Wouldn't that change the impedance (preamp out) and degrade the sound quality? :roll:

Depends on how you do the split.



Y cable - yes.

Patchbay normalled - yes

Isolated (transformer) - no



However, in none of these cases would I worry since the output impedance of any of these pres is _edit_> LOW

enough to not worry about a cut. Split 3 or 4 ways...maybe. But then that would just be insane, wouldn't it?



Me personally - I would go for the easy route seeing as how there's not a chance on earth anyone would ever be able to tell the difference in a final recorded project between an A&H Pre and an API when recording off of FOH. (Perhaps if the performer were Peter Gabriel or Sting...maybe.)

What if I use the line inputs on my preamps?. Will the signal still be too hot?

No, but then you're just throwing another circuit in the path.



Kinda redundant.

Cucco wrote: Depends on how you do the split.



Y cable - yes.

Patchbay normalled - yes

Isolated (transformer) - no



However, in none of these cases would I worry since the output impedance of any of these pres is high enough to not worry about a cut. Split 3 or 4 ways...maybe. But then that would just be insane, wouldn't it?



Me personally - I would go for the easy route seeing as how there's not a chance on earth anyone would ever be able to tell the difference in a final recorded project between an A&H Pre and an API when recording off of FOH. (Perhaps if the performer were Peter Gabriel or Sting...maybe.)

Just curious, why those two?



With my suggested scheme, the A&H pre-amps would not be in the recording circuit of the first 6 channels, and so Twood could choose a sonic flavour for each channel according to the sound source and the type of mic used. Having said that, the A&H desks I have used (GL2800s) have all have clean pre-amps with good headroom, so the case for using boutique pre-amps is a lot lower than it would have been with, say, a Peavey or a Phonic mixer.



I think you meant to say "the output impedance of any of these pres is low enough..."



By the way, it's a myth that transformer splits do not impose loads on the source. The actual load will be reflected back through the transformer as the square of the turns ratio, so 1:1:1 split transformers will act in loading terms as though the two loads were in parallel and the transformer not there.

Boswell wrote: [quote=Cucco]Depends on how you do the split.



Y cable - yes.

Patchbay normalled - yes

Isolated (transformer) - no



However, in none of these cases would I worry since the output impedance of any of these pres is high enough to not worry about a cut. Split 3 or 4 ways...maybe. But then that would just be insane, wouldn't it?



Me personally - I would go for the easy route seeing as how there's not a chance on earth anyone would ever be able to tell the difference in a final recorded project between an A&H Pre and an API when recording off of FOH. (Perhaps if the performer were Peter Gabriel or Sting...maybe.)

Just curious, why those two?

Why which two?

Peter Gabriel and Sting?

A&H and API

or Y Cable and patchbay

Boswell wrote:

I think you meant to say "the output impedance of any of these pres is low enough..."

Yes - that's exactly what I meant - thank you. I'll edit my previous - thanks.

Boswell wrote:



By the way, it's a myth that transformer splits do not impose loads on the source. The actual load will be reflected back through the transformer as the square of the turns ratio, so 1:1:1 split transformers will act in loading terms as though the two loads were in parallel and the transformer not there.

I did not know that - thanks. Now I do.

Cucco wrote: Why which two?

Peter Gabriel and Sting?

A&H and API

or Y Cable and patchbay

Peter Gabriel and Sting. Perhaps there is some special sonic quality to their voices that has passed me by?

Nope...think more on the production value of the show, not the performers themselves.

Nope...think more on the production value of the show, not the performers themselves.

Oh, right. I'll listen more closely next time I'm having coffee in Starbucks.

LOL...