AB50 USER’S MANUAL 5 0 W A T T A C O U S T I C - E L E C T R I C B A S S A M P IMPORTANT SAFETY INSTRUCTIONS EXPOSURE TO HIGH NOISE LEVELS MAY CAUSE PERMANENT HEARING LOSS. INDIVIDUALS VARY CONSIDERABLY TO NOISE-INDUCED HEARING LOSS BUT NEARLY EVERYONE WILL LOSE SOME HEARING IF EXPOSED TO SUFFICIENTLY INTENSE NOISE OVER TIME.
POWER SUPPLY • Turn the power switch off when the AB50 is not in use. • The AC adapter should be unplugged from the AC outlet if the AB50 will not be used for an extended period of time. • Avoid plugging the AC adapter into an AC outlet that is also powering high-consumption appliances such as electric heaters or televisions.
FRONT PANEL Combo 1/4” 2-conductor, dual bass inputs with integrated XLR mic jacks. Channel volume level control. If you are using a bass guitar with an on-board preamp, set its level to mid position before increasing these controls, otherwise distortion may occur. Active low frequency control set to boost (12 dB) or cut (-12 dB) frequencies at 100 Hz.
Output Power 50W / 8 ohm Output to speakers 500mW / 32 ohm Output to headphones Frequency Response 20 -20KHz Actual response is tailored for acoustic bass Total Harmonic Distortion 1.00% At full output 0.05% nominal Hum and Noise -60 dBV...
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