Topic: PS-2/AD-20 in one box?

[cpatch]

Just out of curiosity, has anyone modded a PS-2/AD-20 combo into a single box with the phantom switchable? It just seems like this is begging to be done for the sake of saving some space. (And throw in 1/8" in and analog out in the process just for good measure.)

Craig

[poorlyconditioned]

Just out of curiosity, has anyone modded a PS-2/AD-20 combo into a single box with the phantom switchable? It just seems like this is begging to be done for the sake of saving some space.

Craig

Hmm.  I think the Edirol UA5 does that already

Now realistically speaking, I think you've got two problems:
- PS2 phantom circuit may be pretty noisy, eg., cause interference with your pre in the AD20.  I've seen the inside of the PS2 and this thing is incredibly shielded
- the boxes are probably pretty tightly packed already.  At least the PS2 is.

I'm not saying this can't be done, it just seems difficult, that's all.

HEY: If anyone has pics of the innards of the AD20, I've love to see them!

 Richard

[cpatch]

I'm assuming it would have to go into a new box and was guessing that shielding might be a potential issue. The inside of the AD-20 is divided into two parts...the preamp circuitry is open while the ADC is shielded under a metal shell between the XLR inputs and the preamp. I'd post a pic but mine's at Denecke due to a bum op-amp.

The advantage over the UA5 is that it would be signifcantly smaller and still run off one or two standard 9Vs.

Craig

[poorlyconditioned]

I'm assuming it would have to go into a new box and was guessing that shielding might be a potential issue. The inside of the AD-20 is divided into two parts...the preamp circuitry is open while the DAC is shielded under a metal shell between the XLR inputs and the preamp. I'd post a pic but mine's at Denecke due to a bum op-amp.

The advantage over the UA5 is that it would be signifcantly smaller and still run off one or two standard 9Vs.

Craig

Do you happen to know what chips are used in the AD20 preamp?  That is what I'd like to know...

Thanks,
  Richard

[cpatch]

No, but I'd be happy to take it apart when I get it back if nobody else posts!

Craig

[spyder9]

I've made many tapes with the PS2 and AD20.  Has been a sweet combo for me.  Very transparent sound. 

[cpatch]

As long as it's going to be put into a new box, let's throw in something like this:

http://sound.westhost.com/project60.htm

So now we have a single box with PS-2 and AD-20 with mods for switchable phantom, 1/8" in, analog out, and VU. All runnable off one or two 9V batteries or external.

Or we just start with the feasibility of the PS-2/AD-20 combo in a single box and work from there!

Craig

[poorlyconditioned]

As long as it's going to be put into a new box, let's throw in something like this:

http://sound.westhost.com/project60.htm

So now we have a single box with PS-2 and AD-20 with mods for switchable phantom, 1/8" in, analog out, and VU. All runnable off one or two 9V batteries or external.

Or we just start with the feasibility of the PS-2/AD-20 combo in a single box and work from there!

Craig

+T for the link.  Hey, maybe you can even get a single "chip" with a set of leds right in it.  Then this would be a two chip project.

  Richard

[cybermansrev]

Of course if you've got an AD20 and a PS2 (like cpatch) I can appreciate why this project sounds appealing but otherwise isn't it already pretty much available as the Core Sound Mic 2496? All be it without the analogue 1/8" out, as nice a set of meters but with of course the advantage of 24 bit rather than 20 in the AD20.
Has any one posted the inside of a Mic 2496?
The other downside is of course that you have to rely on the Core Sound "after sales" service.

[cpatch]

I looked at the Mic2496 when I was deciding what to buy but I didn't like the fact that you had to go through 11 steps including opening up the box in order to engage phantom power. That's just bad design.

Craig

[cybermansrev]

I looked at the Mic2496 when I was deciding what to buy but I didn't like the fact that you had to go through 11 steps including opening up the box in order to engage phantom power. That's just bad design.

Far be it for me to defend Len but I guess it depends on if you use one set of mics regularly or slut around. I guess the design thinking must have been that most users would be using CS mics and therefore accidently switching on 48V to them would be a disaster. But jumper settings do seem to be taking that a bit far.

[cpatch]

Far be it for me to defend Len but I guess it depends on if you use one set of mics regularly or slut around. I guess the design thinking must have been that most users would be using CS mics and therefore accidently switching on 48V to them would be a disaster. But jumper settings do seem to be taking that a bit far.

Uh-oh, is it time for true confessions? Hi, I'm Craig and I'm a mic slut..."monogamy" and "mics" are two words that should not be used together as far as I'm concerned! Seriously, as you can see from my sig I'm doing more than just taping and I need a solution that's versatile. I'm also a software designer specializing in user interfaces by trade and a hacker (as in http://www.makezine.com) by nature so criticizing the way things are designed is second nature. In this case, a recessed slider switch on the Mic2496 would have provided a way to easily switch phantom power on and off without having to worry about accidentally changing the setting.

Craig

[Sanjay]

As long as it's going to be put into a new box, let's throw in something like this:

http://sound.westhost.com/project60.htm

So now we have a single box with PS-2 and AD-20 with mods for switchable phantom, 1/8" in, analog out, and VU. All runnable off one or two 9V batteries or external.

Or we just start with the feasibility of the PS-2/AD-20 combo in a single box and work from there!

Craig

Can this be put into a UA-5?  That would be the v3 killer right there, a modded UA-5 with meters/

[poorlyconditioned]

As long as it's going to be put into a new box, let's throw in something like this:

http://sound.westhost.com/project60.htm

So now we have a single box with PS-2 and AD-20 with mods for switchable phantom, 1/8" in, analog out, and VU. All runnable off one or two 9V batteries or external.

Or we just start with the feasibility of the PS-2/AD-20 combo in a single box and work from there!

Craig

Great idea!  I don't know whether the power supply could handle it, but that sounds cool.

Can those put into a UA-5?  That would be the v3 killer right there, a modded UA-5 with meters/

I'm just imagining us tweaking out our UA5 like those geeks that modify their computer cases.  Hey, wait a minute ... I'm one of those geeks

 Richard

[Sanjay]

As long as it's going to be put into a new box, let's throw in something like this:

http://sound.westhost.com/project60.htm

So now we have a single box with PS-2 and AD-20 with mods for switchable phantom, 1/8" in, analog out, and VU. All runnable off one or two 9V batteries or external.

Or we just start with the feasibility of the PS-2/AD-20 combo in a single box and work from there!

Craig

Great idea!  I don't know whether the power supply could handle it, but that sounds cool.

Can those put into a UA-5?  That would be the v3 killer right there, a modded UA-5 with meters/

I'm just imagining us tweaking out our UA5 like those geeks that modify their computer cases.  Hey, wait a minute ... I'm one of those geeks

 Richard

Hey i tweak my computer, just not the case.. that much...

If i can get my hands on a cheap or junked UA-5 i'm going to try to add meters in, maybe it'll have to go in a different box but I think it would be really a good mod.  If you did that with a T+mod ua-5 you'd have all the features of a v3 + the ability to do on the fly matrix's.

[rsimms3]

I already did the 1/8" in mod to my AD20.  Was one of the first things I did.  My setup is in my sig.  If anyone wants pics, let me know.

[thunderbroom]

I'd love to see some pics.  My new AD-20 is on its way and I want to add poorlyconditioned's three wire battery box to it.

[rsimms3]

There is another thread in this forum specifically about the 1/8" mod for the AD20 where another person posted pictures of their mod and I added pictures of mine.  It should be here on the same page.