If you're custom-building a Morel Elate Titanium 2-way component system, you'll need a pair of Morel's MXT-280 crossovers. These crossovers ensure that the speakers in your system receive the right frequencies for premium performance. And Morel builds in three levels of tweeter attenuation to control any high-frequency brightness you may experience in your vehicle. pair of passive crossovers networks for Morel Titanium Elate components designed for use with a 2-way system crossover point: 2,500 Hz at 12 dB per octave tweeter attenuator with three level adjustment (-2dB, 0dB, +2dB)