This listing is for a lightly used Empress ParaEq with Boost Effect Pedal. These are excellent high quality equalizer pedals with an added boost switch. The pedal comes as pictured with the original box and paperwork. No power supply included. Please check out the pictures and message with questions.
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From the Manufacturer
The ParaEq w/Boost gives musicians a powerful, musical, high quality EQ in a conveniently small package. The signal path of the ParaEq w/Boost is comprised of the highest quality components chosen for their transparency, powerful tone shaping capabilities, and low operating noise. With the Empress ParaEq w/Boost your instrument will still sound like your instrument, only better. 

3 bands of parametric EQ, each with 3 selectable q widths, give you extremely flexible EQ. The wide Q is great for general tone shaping and is extremely transparent. The medium Q is perfect for everyday problem solving like pulling out boxiness from the low mids to reducing harshness and adding bit in the upper mids. The narrow Q excels at notching out problem frequencies and is a saviour for acoustic guitarists when combating feedback issues. 

The Boost section offers 30dB of clean boost and can be set to engage with the EQ section to act as a make-up gain when doing subtractive EQ, or can be used completely separately as a pure clean boost. Great for bumping up your volume for solos or hitting the front end of a tube amp for a bit more break-up.