« Reply #3 on: December 16, 2005, 09:54:39 PM »
Fellow TS member Jason Reiser did a mod on my AD-20:
Remove the XLR inputs
Install a blank panel on the left slot
Install a 1/8" input in the right slot
Since I'm strictly stealth, this allows me to use the SP battery box directly into the AD-20, using the level controls and bass rolloff on the bb as needed to adjust the signal to the AD-20. It also gets rid of the bulky converter cable from 1/8" jack to dual XLR plugs.
The mod doesn't add plug in power to the AD-20, so the BB is still in the chain, but I imagine the mod would be a hell of a lot cheaper than the one by SoundPro or others.
I used this new arrangement last night, to great effect.
I can post pix (both exterior and interior) if there is any interest. Jason can provide the technical info as to the details of the mod.
Scott
Hey, while you've got that AD20 open...
Can you tell me:
- what preamp chips it is using?
- what kind of power supply to said preamp chips? (Eg., LT1054 might be a good guess to get -9V for a +-9V split supply)
- what ADC is in there
Thanks!!!
Richard
Logged
Mics: Sennheiser MKE2002 (dummy head), Studio Projects C4, AT825 (unmodded), AT822 franken mic (x2), AT853(hc,c,sc,o), Senn. MKE2, Senn MKE40, Shure MX183/5, CA Cards, homebrew Panasonic and Transsound capsules.
Pre/ADC: Presonus Firepod & Firebox, DMIC20(x2), UA5(poorly-modded, AD8620+AD8512opamps), VX440
Recorders: Edirol R4, R09, IBM X24 laptop, NJB3(x2), HiMD(x2), MD(1).
** This individual has moved to user "illconditioned" **