Topic: AKG Active Project part 3

[newplanet7]

Fuckwin!

[darby]

Jon,
basically this box will not require bodies or another preamp?... then count me in when you need some testers

I have PCBs due in on Friday, I've tested the circuit on breadboard but not with the capsule.  With a test signal I managed -8dBV at 1% THD with a 12V supply, I would have liked better but I don't have any more room for more components.  It can probably go higher with a 40V supply, but I needed a circuit that could use dual 12V/48V supplies as I have designed tinybox II with that feature.  Anyway, that should yield max SPL of 124dBSPL, of course it's possible to increase that by lowering polarization voltage which reduces sensitivity.  And of course I still need to test the circuit at 40V, that will hopefully manage 0dBV.

I did verify the threads at 3/4"-32 (earlier I thought that was off, but I had made a mistake cutting the threads).  I have what should be a final coupler design, waiting on the PCB to verify.  This will have to be hardwired I think to stay at a reasonable size although I'd still prefer to use a mini-XLR.  Roger had suggested Neutrik Nanocons but those only come in three-pin and the dual supply version at least will require four.

wonder if I can mount my 6X capsules on my 451 bodies?... probably just MORE combinations I'll never have time to fully learn and understand

I stumbled on this recently:

http://www.prodigy-pro.com/diy/index.php?action=printpage;topic=26226.0

Marik made some adapters that allows him to mount CK-61 and CK-62 capsules on another mic body.

[darby]

I have three methods of interfacing with the coupling:  via the PFA (a circuit built into an XLR connector) powered by any P48 preamp (such as littlebox), mini-XLR termination to littlebox (saves you the need for the PFA),

what my goal is here is to take a set of bodies out of the equation
I either travel ultra lite running my Littlebox > M10 (which has both XLR and mini XLR inputs)
or all out for multi channel and 1 less set of bodies to carry will help since I'm already carrying my Littlebox

so the PFA would connect to the p48 via XLR cables?
that would not require active type cables and as you stated could be ran by ANY p48

I will be more than willing get a set to test compatibility with my various AKG capsules when the time comes

[newplanet7]

Well alright.
So, I have the older cards ck1's which screw into an a60m adapter reducer ring to fit on my 460's.
Will this set-up work with your PFA coupling set up?

[newplanet7]

Those caps for the remote cable are ck1x, ck3x etc. and were part of AKG's remote set-up with the mk46 cables.

The ck1's that I have and many others have, originally went with the vintage AKG 451 bodies.
They are about 1/4 smaller in diameter. To use them with the 460's the adapter ring they screw into is the same
diameter as the ck6x caps.

[newplanet7]

Nice.
I found the ck1x and remote cable pics that you were talking about.


Ted just did his ck1x/tinybox thing with you

[willndmb]

wow i missed some stuff
i like the idea of using a little box (since i already own one)
but really any affordable way is good with me

[Hypnocracy]

Being that I'm now on the 460 AKG team I'll be following along...

Jon, does this mean that the AKG actives are moving up the list of things you are developing?

Yes, they are next.

[Hypnocracy]

Looking back there has been mention of Powder Coating the collettes...as long as this is done in Brass or Copper I have access to Gun Blue (acid oxidation) which turns both of the metals black....it is a nice stable coating and adds no thickness to the metal.

I know...Options to a item we have yet to see!

[setboy]

Once those actives are made i might have to trade in my busmans for some 

[willndmb]

Once those actives are made i might have to trade in my busmans for some 

been thinking the same thing
although i hav ebeen thinking of getting rid of my bm anyway since i am not using them much

[newplanet7]

Hi jon. For the coupling  AKG part, have you though of a name for lineage sake?
AKG ck1~>  mshilarious miracle~> PFA~> V2~> R44

Has a nice ring to it! 

-todd

[willndmb]

Hi jon. For the coupling  AKG part, have you though of a name for lineage sake?
AKG ck1~>  mshilarious miracle~> PFA~> V2~> R44

Has a nice ring to it! 

-todd

lol nice

whats PFA?

side note if you saw the thread where it says the project is moving along and should be done by may (or whatever exactly it says)
(don't want to hijack the thread anymore then it was) can jon or anyone who might know tell if the project will work with littlebox or will it be a different or specific box needed like nbox for example

[darby]

he indicated it would work with any P48 preamp

[newplanet7]

he indicated it would work with any P48 preamp

Yep. The coupler and A PFA( Phantom Power Adapter)
http://taperssection.com/index.php?topic=93559.msg1810363#msg1810363
http://taperssection.com/index.php?topic=93559.msg1810395#msg1810395