11. If you have an instrument plugged into the MIC 1 or MIC 2 channels, play the instrument and slowly rotate that channel’s LEVEL knob clockwise until you find an acceptable
level.
12. If you have an instrument or other external sound source plugged into the iPOD/AUX RCA jacks, adjust the volume on the instrument or sound source.
13. Balance all of the audio channels against each other by adjusting each channel’s respective LEVEL knob until you find an acceptable mix.
14. Adjust the BASS and TREBLE controls if the overall sound needs more low or high frequencies.
15. Make final adjustments to the MAIN \LEVEL knob.
Charging the battery
The MPA40BT-PRO/MPA40BT ships with a rechargeable, internal battery that can power continuous audio playback for up to 8 hours. We recommend that you fully charge the
battery before your first use.
To charge the battery for the first time, follow this procedure:
1. Turn off the MPA40BT-PRO/MPA40BT by pressing the POWER switch.
2. Connect the unit to an AC power outlet.
3. Keep the unit plugged in to AC power until the BATTERY STATUS 100% LED indicates the battery has been fully charged.
NOTE: The MPA40BT-PRO/MPA40BT uses a sealed lead-acid gel battery, and the battery will slowly self-discharge when the MPA40BT-PRO/MPA40BT is not in use. Before
storing the MPA40BT-PRO/MPA40BT for an extended period, fully charge the battery before storage, and then charge again every3 months.
NOTE: The lead-acid battery needs toberechargedevery3 months for continued operation. Please replace the battery if the MPA40BT PRO/MPA40BT operating time noticeably
decreases, even after a full charge cycle.
Specifications
Amplifier
Maximum output power 40W*
Speaker Size
Woofer 8″
Tweeter 1″
Loudspeaker System Data
Frequency response 45 Hz to18 kHz (±3dB)
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