Welcome to the new FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

Cheap and cheerful preamp solution

Michael - N5TGL
Michael - N5TGL Member ✭✭
edited October 2016 in New Ideas
I've always had a bit of trouble being able to get close to 0 when setting mic gain.  Even with the +20dB and gain set at 100, I still was hovering around -10.  I've been looking for a preamp, went so far as to find one to build, but found a simple, inexpensive one on eBay.  Enter the Art MicroMix.  Very simple, will do balanced/unbalanced and has phantom power.  Runs on 12vdc.  Front panel controls consist of a gain knob and a switch for phantom power.

Sounds just fine, had to do a bit of choking to remove RF feedback, which was kind of surprising considering it's an all metal case and I'm using balanced mic cables.  Paid $40 used for it, and it does the trick.  Something to look into if you're in the market for a preamp.  They are out of production, but there seems to be quite a few of them online.

Yeah, I've got a bit of ferrite on there.  Such is life with a longwire and QRO.  :)

Leave a Comment

Rich Text Editor. To edit a paragraph's style, hit tab to get to the paragraph menu. From there you will be able to pick one style. Nothing defaults to paragraph. An inline formatting menu will show up when you select text. Hit tab to get into that menu. Some elements, such as rich link embeds, images, loading indicators, and error messages may get inserted into the editor. You may navigate to these using the arrow keys inside of the editor and delete them with the delete or backspace key.