• Selectable mic input gain level, -20 / -30 / -45 / -60dBu
• Phantom 48V power supply
• HPF at 80 or 160Hz with -6dB/oct
• Cascading function for stereo application with a supplied dedicated joint plate
• Balanced Out (+4dBu, XLR) and Unbalanced Out (-10dBV or attenuated -50dBV, stereo mini)
• Peak LED and Power LED that doubles with low battery warning
• Powered by 1 x AA battery (Alc or NiMH) for 10 hours operation (approx. 4 hours with P48V on) or DC-IN (5V, Micro USB)
• Power saving mode (phantom power down to 24V) to extend the operation hours

http://www.fostexinternational.com/docs/products/AR501.shtml

SWAMP X-USB - XLR to USB Audio Interface This simple yet ingenious device provides all the features of larger USB audio interfaces at a fraction of the cost, and saves a great deal of space too! Don't let your home studio become cluttered with pre-amps and USB interfaces, when you could do it all with a device smaller than your fist. Velcro straps allow you to attach it to a mic stand, so you won't even know it's there!

Monitor while you Record Featuring a 3.5mm headphone output, this device allows you to monitor (hear) yourself whilst recording. Plus allowing you to playback a pre-recorded track while you are recording another over the top. Adjust the playback/monitor ratio easily with the centre dial, and the output volume with the bottom dial. This is functionality required for professional home studio's and comes at a fraction of the cost with the X-USB.

iPad Compatible - Professional Recording on the Move! We have just tested the SWAMP X-USB audio interface with a iPad version 4, and have found that it works seemlessly with both dynamic and condenser mics. A 'camera connection kit' is required to enable a regular USB cable to be inserted into the iPad. The X-USB preamp is stong enough to push 0dB of signal to the iPad input, and as with a computer, the signal is totally noiseless. Now you can record professional audio on the go.

Phantom Power 48V The X-USB even supplies 48V phantom power at the touch of a button, so you can use condenser mics to get that professional studio quality sound anywhere you go. It supplies this phantom power from the computer ir iPad through the USB connection, so no batteries needed.

All this combined with plug and play compatibility with both Windows and Mac, means it has never been easier to plug in and record anytime, anywhere.

Included:

1x X-USB XLR to USB Preamp / Audio Interface 1x USB cable Specifications:

Resolution: 16bit A/D Converter, XLR to USB 44.1kHz/48kHz Sampling Rate 48V Phantom Power and Switch Adjustable Gain Adjustable Headphones Monitoring out LED Indicator USB Powered Signal Boost Gain: +20dB Plug and Play with Win2000, XP, Vista, Windows7, Windows8 Compatible with all MAC OSX Details

$69.99 Aussie dollars

BMC388 is made mostly for Black Magic cameras. Difference with previous models is that it has balanced outputs.

Otherwise it is same 3 XLR inputs, support for phantom power, not really good (as it is few only) leds used for levels.

And quite big $429 price (something about $300-350 margin here I guess).

http://juicedlink.com/collections/preamp-selection

I used this when I had my Gh2, but have moved to a Canon C100 these days, so don't have much of a need for it. I am tempted to keep it and feed the signal into the c100 when recording audio, but i would rather have the cash free. The preamps on this are definitely better than the c100 ones.

I am selling for $785+15 shipping to CONUS/Canada. I can ship international, but please contact me beforehand so I can get a quote of how much shipping would be.

There is a fair amount of wear on the unit, the finish seems to chip fairly easily, but it is made out of a really solid metal type finish, not plastic like a zoom h4n, so this thing can take a serious beating and never flinch.

Everything is fully functional, and works like a charm. Here are some pictures of the unit:

EDIT: Also, I have 100% ratings on eBay you can find my feedback at mattrobertson7