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Two-channel full-range or subwoofer system (APX2181)
In this application, the APX2181 is used to drive two speakers.
Subwoofers
Full-range co-axial or
Component speakers
Subwoofer in stereo
• Set crossover mode switch to LP
• Set crossover frequency to ~80Hz
• Fine-tune as required
•2Ω min stereo / 4Ω min mono
Full-range speakers or components in stereo
• Set crossover mode switch to OFF
Subwoofers and component speakers at the same time
• Set crossover mode switch to OFF
• Install passive crossovers on subwoofers (inductor) and components (capacitor)
Components speakers in stereo with separate subwoofer amp
• Set crossover mode switch to HP
• Set crossover frequency to ~200Hz for 4-inch speakers
~100Hz for 5.25-inch speakers
~75Hz for 6.5-inch speakers
~65Hz for 6 x 9-inch speakers
APX_DPX Amps.qxd 2/6/2008 11:53 AM Page 16