Switchable Mic/Line Input Mode Up to 81 dB of Clean JFET Gain High-Frequency CurveShaper EQ Low-Frequency Proximity Control Output Level Control Phantom Power and Polarity Switches No-Load High-Impedance Circuitry 3-Stage LED Level Indication Made in the USA Get all the clean gain you could ever need for the quietest mic sources with the AEA Ribbon Mics RPQ500, a mono 500 Series microphone preamp and EQ made in the USA by the same company known for its premium ribbon mics. This single-slot module offers mic and line input modes, so it can be used not only as a pristine mic pre in recording sessions, but also as an EQ and fader unit during mixdown. Between the 12-position mic pre gain and the continuously variable output level, up to 81 dB of JFET gain is available. Three LEDs are provided for clear indication of levels at -20, 0, and 24 dBu. Use the CurveShaper EQ to finesse the high-band character at the frequency of your choosing, between 2.5 and 30 kHz. Tame bass buildup and proximity effect at the twist of a knob with the low-cut filter, which features -20 dB of maximum reduction and variable frequency selection from 22 to 515 Hz. Features at a Glance One channel with 81 dB 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, and mic/line input mode NoLoad 10-kilohm high-impedance circuitry providing better overall transients, frequency response, and higher output sensitivity Made in the USA Controls LED Indicators: Green, yellow, and red LEDs indicate levels at -20, 0, and 24 dBu Curve Gain: This continuously variable control adjusts the HF gain from flat ( 0 dB) to maximum (approximately 20 dB); the slope of the CurveShaper EQ varies as Curve frequency and gain settings interact Curve Freq: This continuously variable control adjusts the 3 dB break-frequency from 2.5 to 30 kHz HF Switch: Out is true bypass; In inserts the CurveShaper circuitry LF Switch: Out is bypass; In inserts the -20 dB low-cut shelving filter Low Freq Cut: This continuously variable control adjusts the -3 dB break frequency of the filter from 22 to 515 Hz; maximum LF reduction is -20 dB P48 Switch: Out is off; In applies full-spec P48 phantom power to the input (indicated by the red LED near the switch) Mic/Line Switch: Out is Mic Input mode; In is Line Input mode (green LED on), which bypasses the mic preamp stage to accommodate line-level signals Polarity Switch: Out is normal; In is inverted Mic Gain: This 12-position switch selects from 13 to 62 dB of preamplifier gain Output Level: This continuously variable control provides up to 19 dB additional output gain in Mic Input Mode (following the optional CurveShaper circuitry); it acts as a fader and allows -60 dB attenuation of the output signal (0 dB unity is one tick below 6 dB) UPC: 652401977612