Anyway, to add some "air", "naturalness" "whateveryouwannacallitthatsoundsbetter", I use an internal miniature electret condenser microphone. The two passive signals are routed out with a stereo 1/4" cable and into a Presonus Acousti-Q preamp/blender. It's got volume controls for both signals and very nice eq.
I thought I'd report an easy way to make a "gooseneck" condenser mic. This model works only with a preamp feeding 2-12V phantom power to the mic, thou. For a standalone version you'd need a condenser, a resistor, a 9 volt battery and few inches more wire in addition.
A little sound clip: Dual Source -> Acousti-Q -> Firebox -> Garageband with a hint of EQ and reverb. The delay effect comes from Zoom A2 hooked in the Acousti-Q's efx loop
|Gooseneck peeking through the soundhole|
|Here's the stuff needed to make a mic|
|Panasonic capsule and shielded cable...|
|The capsule's got two terminals, one for hot, one for ground.|
|They provide a handy silicon sleeve for the capsule.|
|Heat shrinking tube...|
|...and some wire...|
|And attached to a metal paper clip...|
|...and we're ready! The clip attaches to a back brace nicely and is easy to place to an optimal spot because of the bendable shaft.|
|This unit provides the phantom power the capsule needs, mixes the two signals and more. It's got a vacuum tube too!|