The Electro-Voice MTX-4 system is audio equipment featuring crossover, equalizer, and delay functions (a dedicated channel divider for MTL-4 and MTH-4). - Model: MTX-4 - Functions: Crossover, Equalizer, Delay - Outputs: LOW OUTPUT, MIDBASS OUTPUT, MID OUT, HIGH OUTPUT - Brand: Electro-Voice Thank you for viewing. No accessories are included. This is a listing for the main unit only. I do not own the compatible speakers, so I haven't checked the unit for this listing, but during a check several years ago, the HI attenuator was faulty (it seems like it could be fixed by simply replacing the potentiometer). If anyone is interested, please feel free to purchase.