Dayton Audio XO2W-2K 2-Way Network Board 2000Hz "Dayton Audio" is an American brand that produces millions of cost-effective audio products. This is the Dayton Audio finished network board. Recommended for the lucky brother who wants to make their own speakers but making a network seem..." The 12dB/oct (Linkwitz-Riley) is a full-scale network configuration and a "switching" type that can be used with 4Ω and 8Ω woofers. (tweeter is set to 8Ω) 18 AWG gauge iron core coil (Low) and hollow core coil (High) and metallized polypropylene film condenser on blue PC board and each part is fixed to prevent vibration. Product specifications may change without prior notice.