sE Electronics DM2 T.N.T Blue Microphone Preamp

The DM2 TNT lets you choose between a moderate +15dB or explosive +30dB of gain with an ultra-high impedance input and eight load settings to perfectly match any passive microphone. While the DM1 DYNAMITE provides a massive +28dB of clean, transparent gain.
With a sophisticated class-A design and specially-selected high-grade FETs, sE active inline preamps have vastly lower output impedance and nearly half the noise of anything else on the market. Additionally, the gain provided is always consistent regardless of the connected load, thanks to the DM2's eight switchable impedance setting and the DM1's dedicated buffer amplifiers.
For optimum results, they recommend you plug the DM1 or DM2 directly into your microphone’s output. If necessary, a cable can be used between the microphone and the DM1 or DM2 - but the shorter the cable, the better the overall performance will be.