Topic: AD20-MINI opinions? or other bb/preamp combo suggestions please

[pfife]

that's awesome;  very nice for people who buy lemo DPA's off ebay-  do you have a name of the distributor who did that? +t

[relaxing]

 I don't feel like getting microdot connectors put back on just to use the DPA battery box.

I have 4061's that end in Lemo connectors.  When I purchased my DPA batt box from the Canadian distributer here in Toronto, they modded the batt box with some Lemo connector inputs instead of having to attach microdot connectors to the ends of my mics.  Now I can go Lemo in but also still have the microdot inputs to use since they were never disconnected.  So you might want to inquire about possibly modding the box from DPA

do you know what bias voltage the DPA box puts out?  I thought I read on here it's the standard 9V, but it'd be nice to know for sure.

[Fisherking]

The modification done on the AD20 to get plug-in power isn´t very complicated. I think you could easily do it yourself. If you can live with the +17db gain I would get a standard AD20 (used) and mod it myself. That is if the AD20 is what you want.

I am also very intrested in the output voltage on the DPA box.

[Burnt]

that's awesome;  very nice for people who buy lemo DPA's off ebay-  do you have a name of the distributor who did that? +t

Ebay is where I bought my 4061's   
I'll need to get back to you on the name of the distributor.

[relaxing]

that's awesome;  very nice for people who buy lemo DPA's off ebay-  do you have a name of the distributor who did that? +t

pfife, how did you rewire your 4061s?  Any tricks?  And they run fine off the SP BB?

[pfife]

cut off lemos and solder them to a stereo miniplug.  Each has a + and a sheild.  Miniplug has ring for each +, and a sheild for both.  Only problem is that its very, very small.  Run fine off the sound pros bb.

[peterbilt]

I do realize that I don't know my ass from my elbow when it comes to modding chips and such, but has anyone looked into the possibility of disbling the 17db gain of the AD20, and still be able to use the adjustable gain?
Granted, it still wouldn't supply power to mics, but I'm curious if it is possible.

[drewloo]

I though about selling it and my AT831's and 2 jb2's to fund a higher quality hard disk recorder, I guess if I sell by V3 too I could come close to getting a 722.

Sell it to me at a good price & when I'm not using it you can borrow it. 

[Govt Mule]

Make me an offer.

[setboy]

I do realize that I don't know my ass from my elbow when it comes to modding chips and such, but has anyone looked into the possibility of disbling the 17db gain of the AD20, and still be able to use the adjustable gain?
Granted, it still wouldn't supply power to mics, but I'm curious if it is possible.

this is what i got from Denecke


Hi Raphael,
Unfortunately, there is no way to bypass the pre amp gain.

Best regards,

Charlie



At 11:39 AM 4/3/05 -0400, you wrote:
>hi
>i have a question about the ad-20
>
>is there any way of disbling the gain in the ad-20?
>
>
>
>
>Thanks
>
>Raphael

[Evil Taper]

If you read the DPA website regarding the 4061 mics they say you can use a phantom power source for them even.  I don't know if that would solve the problem and I KNOW I've seen people say NO PHANTOM EVER for the 4061s.  You might want to talk to JK Labs about having a unit built but who the heck knows how long that would take or how much it'd cost.  If someone on the board were very handy electronically and able to get a business loan alot of money could be made producing stealth powering items that tapers need.  A small full blow phantom setup the size of a standard batt box or a batt box with built in a/d + pre...it'd make our lives easier for sure.

[tchoub]

If you read the DPA website regarding the 4061 mics they say you can use a phantom power source for them even.  I don't know if that would solve the problem and I KNOW I've seen people say NO PHANTOM EVER for the 4061s.  You might want to talk to JK Labs about having a unit built but who the heck knows how long that would take or how much it'd cost.  If someone on the board were very handy electronically and able to get a business loan alot of money could be made producing stealth powering items that tapers need.  A small full blow phantom setup the size of a standard batt box or a batt box with built in a/d + pre...it'd make our lives easier for sure.

regarding the dpa 406x powering options (from the DPA's web site) : "A wide range of connection adapters makes it possible to use the 4061 with close to any professional wireless system available plus 48 V phantom" . So, in my opinion, this means that no direct 48V powering is possible except if you use one of the available adapters.

regarding the small-sized powering/a-d/pre unit that you are looking for, I think that the new Sonosax MINIR2 is going to be your best friend

[pfife]

One of their boxes allows phantom power to flow though it and filtering it down...  you can't run them on phantom power w/o somehow notching the amount of pwer way down...

besides, if you can get optimum performance from a small battery box, why lug around a phantom power unit if you don't need to?  Unless, of course, you don't have a battery box.

[relaxing]

Yeah, I was under the impression their adapters just throttle the 48V down to the usual 9V (although the manual claims they can run down to 3V). 

This has been my philosophy as well in chosing a pre/power box - the resistors in the converters are just dissipating away ~40V, so better to get only what is necessary.

regarding the new 'sax - isn't it a flash recorder?  I went with a jb3 to get away from media costs and tape flips.

[Evil Taper]

When ordering a batt box from sound pros you can select a gain control option, would this add more volume or what?