Kenwood KAC-848 Instruction Manual

Also see for KAC-748: Instruction manual Instruction manual Instruction manual Instruction manual

System examplesw High-pass (100 Hz) + Subwoofer (100 Hz) systemeee SORTaos stesennensenssnceneratnars |CENTER UNITwien figO- & Switch settingSwitch settingSwitch setting{High pass) ” Subwoofer(L + R) (Bridged)@Principle of Tri-modeMethod of frequency band division using a coil and capacitor---in case of 6dB/oct. slopeCoil (L): Passes low peciibacios and blocks highfrequencies. (Low pass}_ Capacitor (C): Passes high frequencies and blocks lowfrequencies. (High pass)Crossover Frequency159000= {uFC fexR fc=Cut of Frequency (Hz)Frequency i‘ 159xR H) R=Speaker Impedance (Q)@Example:When it is required to set a crossover frequency of 120 Hz using speakers with animpedance of 4 ohms.Prepare commercially-available coi! and capacitor with the closest ratings to the results .calculated from the formula above. The capacitor rating should be as close as possible to 331.25 _(uF) and the coil rating should be as close as possible to 5.3 (mH).¢ If you wish to bridge-connect a speaker, the speaker impedance must be no less than 4 ohms. -Connecting a speaker with an impedance lower than 4 ohms may damage the unit.¢ Be sure to connect capacitors to speakers to which high frequencies will be passed. -Failure todo so will result in a drop of the combined impedance with the subwoofer.¢ Ensure that the withstand voltage and current ratings of the capacitors (C) and coils (L) aaresufficient.10 English

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