The AEA RPQ500 preamp and EQ provides high-quality, high-gain, low-noise preamplification with a rich and musical sound that complements the natural tonality of your microphones. 
 
Features: 
One channel with 81dB of sweet and quiet JFET gain 
High-frequency CurveShaper™ EQ and low frequency proximity control 
Mic and line inputs for mixdown EQ versatility 
Switchable phantom power, polarity, line/mic 
NoLoad™ 10k Ohm high-impedance circuitry providing better overall transients, frequency response, and higher output sensitivity