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16 APX/DPX Amplifiers
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Two-channel full-range or subwoofer system (APX2180)
In this application, the APX2180 is used to drive two speakers.
Subwoofers in stereo
• Set crossover mode switch to LP
• Set crossover frequency to ~80Hz
• Fine-tune as required
• 2 Ω
Full-range speakers or components in stereo
• Set crossover mode switch to OFF
Component 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
Subwoofers and component speakers at the same time
• Set crossover mode switch to OFF
• Install passive crossovers on subwoofers (inductor) and components (capacitor)
Subwoofers
Full-range co-axial
or
Component speakers
APX-DPXOwnersManual.pmd 2006-03-14, 21:4616