In my opinion one of the best crossovers made. The BSS FDS-310 is a sweepable stereo 2-way or mono 3-way high quality dividing network. Made in the UK it has the updated version 2 software. Fully tested and everything is working like it should. It has been racked and used for many years, so it does have signs of use and wear with some scratches and dings. Please see pictures for condition. 

Usually shipped the same day of purchase, always within 24 hours of cleared payment. Please check my feedback and buy with confidence. If you have any questions, please feel free to ask, my name is Mark.