Based on the values of r, g, x, and b, we can roughly categorize the impedance into 4 different types: Type #1: r ≥ 1, x any value. Type #2: g ≥ 1, b any value. Type #3: r < 1, g < 1, x > 0 or b < 0. Type #4: r < 1, g < 1, x < 0 or b > 0. Theoretically all these 4 types of impedance can be perfectly matched to 50Ω by using only 2 lumped. Looking for a New Lexus Lc in Elgin, TX? With CarZing, you can get pre-qualified for your dream Lexus Lc and get amazing deals with our network of certified deals in Elgin, TX.