Specifications High Pass Frequency: Controls the cutoff frequency to be distorted, ranging from 100Hz (for thicker, fuzzier saturation) or 1kHz for ultra-sharp definition. High Drive: Sets the amount of distortion for the high pass side. High Level: Sets the output volume of the distorted high-pass signal. Low Pass Frequency: Controls the cutoff frequency to be mixed back to the high-pass side. Ranging from 50Hz (for only sub-bass) and 500Hz to preserve some clean mids. Low Comp: Sets the amount of compression for the low-pass signal. Low Level: Sets the output volume of the low-pass signal. Master: Sets the overall volume of the unit. Low shelf: +-12dB @ 80 Hz 500 Hz: +-12dB 1 kHz: +-12dB High shelf: +-12dB @ 5 kHz Parallel Output: A passthrough for your input signal, useful for parallel processing. Direct Output: A balanced version of the ¼” output, useful for running into PA’s or studio mixing consoles. DIMENSIONS: 12×10.7 cm (4.72×4.21 in) WARNING: The Microtubes X7 has a current draw of 70mA. Only use a regulated 9V-18V DC adapter with a center-negative plug. Due to ecological reasons, it does not accept batteries. Unregulated power supplies and/or higher voltages may result in suboptimal noise performance and even damage your unit, voiding the warranty. WATCH: Microtubes X7: Multiband Distortion