Used Darkglass Microtubes B7K Preamp

With the Darkglass Electronics Microtubes B7K v2 Bass Preamp, you'll get all the features of the original B7K, along with the ability to better sculpture your tone: you get the option to change the center frequency from 1 kHz to 500 Hz on the low mids, and the option to change the center frequency from 3 kHz to 1.5 kHz on the high mids. This will allow you to tailor your absolute dream distortion tone.

• Blend - Mixes the clean input signal with the overdriven signal.
• Level - Sets the volume of the overdriven signal.
• Drive - Sets the amount of saturation in the overdriven signal.
• Grunt Switch - Sets the amount of low frequency content to saturate
• Attack Switch - Sets the amount of treble content to saturate
• Parallel Output - A passthrough for your input signal, useful for parallel processing.
• Direct Output - A balanced version of the ¼" output