Using the Digital Signal Processor (DSP)
Auto-equalizing Function
This product’s Auto-equalizer automatically measures car interior acoustic characteristics, and then creates the Auto-equalizer curve based on that information.
Before Operating the Auto-equalization
7WARNING:
•To prevent accidents, never perform Auto-equalizing when driving. When this function measures car interior acoustic characteristics to create an Auto-equalizer curve, a loud measurement tone (noise) may be output from the speakers.
7Precaution:
•Performing Auto-equalizing under the following conditions may damage the speakers. Be sure to check conditions thoroughly before performing Auto-equalizing.
*When speakers are incorrectly connected. (e.g. When a rear speaker is connected to a subwoofer output.)
*When a speaker is connected to a power amp delivering output higher than the speak- er’s maximum input power capability.
•If the microphone is placed in an unsuitable position the measurement tone may become loud and measurement may take a long time, resulting in a drain on battery power. Be sure to place the microphone in the specified location. (Refer to page 42.)
7Read this before performing Auto-equalizing
•Perform Auto-equalizing in as quiet a place as possible, with the car engine and air con- ditioning switched off. Also cut power to car or portable telephones in the car, or remove from the car before performing Auto-equalizing. Sounds other than the measure- ment tone (surrounding sounds, engine sound, telephones ringing etc.) may prevent cor- rect measurement of car interior acoustic characteristics.
•Be sure to perform Auto-equalizing with the supplied microphone. Using another micro- phone will prevent measurement, or result in incorrect measurement of car interior acoustic characteristics.
•With no speaker connected, Auto-equalizing cannot be performed.
•When connected to a power amp with input level control, Auto-equalizing may not be possible if you lower power amp input level. Set the power amp’s input level to the stan- dard position.
•After normal completion of Auto-equalizing, fader/balance settings (refer to page 35) return to the center position (initial settings).
•If you perform Auto-equalizing when Auto-equalizer curve already exists, the previous curve is erased.
•If you perform Auto-equalizing, the equalizer curve switches to flat.
•If you perform Auto-equalizing while a Subwoofer is connected to this product, it will be adjusted automatically Subwoofer output setting. (Subwoofer output is automatically turned on adjusted even if you have turned it off before.)