C. K. Pithawalla College Of Engineering & Technology, Surat. Crossover Network C. K. Pithawalla College Of Engineering & Technology, Surat. Group No – 14(5th Sem - A) Bhagat Jay A - 140093111002 (1411940) MANANI Darshan - 140093111013 (1411937) Patel priyak - 140093111023 (1411938) Chaudhari Abhishek – 140093111047 (1411951) Guided By – Prof. Vismay yagnik Dept – Electronics & communication Engg.

Crossover network Audio crossovers are a class of electronic filter used in audio applications. Most individual loudspeaker drivers are incapable of covering the entire audio spectrum from low frequencies to high frequencies with acceptable relative volume and absence ofdistortion so most hi-fi speaker systems use a combination of multiple loudspeaker drivers, each catering to a different frequency band. Crossovers split the audio signal into separate frequency bands that can be separately routed to loudspeakers optimized for those bands.

The definition of an ideal audio crossover changes relative to the task at hand. If the separate bands are to be mixed back together again (as in multiband processing), then the ideal audio crossover would split the incoming audio signal into separate bands that do not overlap or interact and which result in an output signal unchanged in frequency, relative levels, and phase response.

Crossover Networks for Loudspeakers Most loudspeakers use multiple drivers and employ crossover networks to route the appropriate frequency ranges to the different drivers. Elements which make up crossover networks

Crossover Elements Crossover networks A capacitor and inductor in series act to block both very high and very low frequencies. The capacitor has lower impedance for high frequencies. It acts to block low frequencies and let high frequencies through. The inductor has a lower impedance for low frequencies. It acts to block high frequencies and let low frequencies through. Crossover networks

Two-Way Crossover Combinations of capacitors, inductors, and resistors can direct high frequencies to the tweeter and low frequencies to the woofer. This amounts to filter action. A two-way crossover network divides the frequency range between two speakers.

Three-Way Crossover Combinations of capacitors, inductors, and resistors can direct high frequencies to the tweeter and low frequencies to the woofer. This amounts to filter action. A three-waycrossover network divides the frequency range between three speakers. A capacitor has lower impedance for high frequencies. In series with the high frequency speaker (tweeter), it acts to block low frequencies and let high frequencies through.

The inductor has a lower impedance for low frequencies. In series with the low-frequency speaker (woofer), it acts to block high frequencies and let low frequencies through.

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