Features: WEAH-255 adjustable 2 way crossover: for bookshelf speakers, etc., the section can independently change the sound quality, debugging the effect of user preferences. The use of Auditory capacitors; crossover comes with no welding wire terminals; Large current knob on the panel can quickly adjust the sound quality of 16 different combinations, between 6dB and 12dB; Adjustable sound quality, reasonable design, exquisite appearance, beautiful sound quality. Can be debugged, can change the effect: crossover wiring panel is equipped with two knobs to control different circuit combinations, change the sound quality effect. Specifications: Model: WEAH-255 Power: 350W Frequency: a total of 16 combinations, Circuit: 12dB/6dB Opening size: 108mmx60mm/4.25x2.36in Panel size: 136mmx89mm/5.35x3.5in Quantity： 2PCS Package Includes: 2PCS WEAH-255 Adjustable Frequency Divider note: Due to the different monitors and light effect, the actual color the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring difference due to manual measurement.