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<blockquote data-quote="1aespinoza" data-source="post: 8781661" data-attributes="member: 654802"><p>When testing an amplifier's output, use AC Volts on the multimeter. If no or little voltage is the result, your input signal may be weak. Put radio volume at about 75%. Now try sweeping the Gain up a bit to see if voltage rises. Set Low Pass halfway (about 90Hz), Bass Boost halfway.</p><p>For 400 watts you should get 40v AC for 4 Ohms or 28v AC for 2 Ohms.</p></blockquote><p></p>
[QUOTE="1aespinoza, post: 8781661, member: 654802"] When testing an amplifier's output, use AC Volts on the multimeter. If no or little voltage is the result, your input signal may be weak. Put radio volume at about 75%. Now try sweeping the Gain up a bit to see if voltage rises. Set Low Pass halfway (about 90Hz), Bass Boost halfway. For 400 watts you should get 40v AC for 4 Ohms or 28v AC for 2 Ohms. [/QUOTE]
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