I stumbled on this while cruising the web:
http://www.emu.com/products/product.asp?category=610&subcategory=611&product=17511------------------
E-MU's Tracker Pre USB 2.0 Audio Interface/Mobile Preamp is the ultimate portable USB audio interface for Mac and PC, offering pristine 24-bit/192kHz recording and playback, direct monitoring, and a host of professional features in a compact, USB bus-powered package. The Tracker Pre USB provides users with two Class-A ultra-low noise Mic/Line/Hi-Z preamplifiers that can be run independently or in stereo to record guitars, keyboards or microphones with optimal audio performance. CurrentMorph™, a patent-pending circuit design, allows Tracker Pre to offer +48V phantom power and use premium high-power converters while using only USB bus power.
A couple of interesting features:
5 VDC Power Adapter (optional)
Although the Tracker Pre is normally bus-powered via USB, it can also be powered by an optional 5-Volt DC power adapter to allow it to be used as a stand-alone stereo microphone preamplifier. (power consumption
)
Stereo Mic Input
This 1/8" mini-phone jack is designed to accept a stereo, electret condenser microphone. The jack supplies +5VDC phantom power. Mono microphones can also be connected and will use input 1L. Note: The Stereo Mic jack takes precedence over the Hi-Z/Mic/Line inputs. Inserting a 1/8" plug disables the other inputs.
Inserts (1L & 2R)
These unbalanced TRS jacks allow you to insert a signal processor, such as a compressor or EQ, after the mic preamps, but before the A/D converter stage. The Insert jacks can also be used to tap off the mic preamp outputs when using the Tracker Pre as a stand-alone stereo microphone preamp.
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$149 @ Musician's Friend
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It looks like it can be used as a portable battery powered preamp with Phantom Power for condenser mics or for some of the smaller stereo mic rigs. I haven't found dimensions or weight specs yet but it looks somewhat small and light (Plastic). It certainly will not replace the small battery powered pre's like the CA-9100 for low profile applications, esp. not the CA-UGLY. This might be a good entry level product for noobies because it will work with a variety of mics and recording setups and allows for a variety of paths for upgrading or expanding starter rigs.
So, anybody have any feedback as to sound quality? That's the big question! I know ... you get what you pay for but sometimes there are deals. I'm not in the market for it myself, well ... probably not.