Boss Parametric Equalizer and Equalizer Set

This is a set of BOSS parametric equalizer and equalizer.
These are unused pieces of equipment from my student days.
The power turns on.
I recently sold my guitar on Mercari, so I haven't been able to test its operation, hence the low price.
The bottom plate has been modified as it was attached to an effects board.
As operation has not been confirmed, this is a bargain price including the equalizer.
We ask for purchases from those who understand the above description.