Divide the AC voltage by the square root of two, and this will present you with the DC voltage. You can input this equation into a calculator to ensure that you get the right answer. For example, if the speakers have an AC voltage of 60V, you would input 60/√ (2) which would give you a DC voltage of 42.42 V.
EAGWELL 48 Volt Adjustable Power Supply, SMPS 110V AC to DC 0-48V Buck Converter 0-12.5A Volt Amp Adjustable Adapter Regulated 5V 12V 24V 36V 48V Switching Power Supply Switch Transformer Max 600W 4.5 out of 5 stars 358

Amperage input at voltage rating chosen above. AC to DC conversion is not perfectly efficient. To be safer, use the 80% (.8) efficient derate factor. This calculator computes the number of batteries needed for any application +/- a battery. System is set to +20% (ah X 1.2) to account for wire resistance, resulting voltage loss, heat, and other

Using Line to Line Voltage. To convert amps to watts for a three-phases AC circuit using line to line voltage, multiply amps by volts by the power factor by the square root of 3. Conversion formula: watts = amps × volts × power factor × √3. Abbreviated formula: W = A × V × PF × √3. Alternate abbreviation: P = I × V × PF × √3. If the AC voltage is not symmetrical around zero, then the DC voltmeter will still try to follow it, but instead of sitting at zero, it will show the average of the up and down swings of the input. For a symmetrical AC input, the average is zero.
Wagan EL9903 5 Amp AC to DC Power Adapter 5A Power Converter Converts 110V AC to 12V DC Car Cigarette Lighter Socket AC 110V to DC 12V 5A 60W Power Supply Adapter Converter, UL listed. 3,939. 300+ bought in past month. $1924. List: $29.95. FREE delivery Mon, Dec 11 on $35 of items shipped by Amazon.
Its input DC power voltage range can be 29V ~ 45V. It has two 3-hole AC socket which accepts both 2-pin and 3-pin AC plugs. This inverter has Pure Sine wave form output, more similar to commercial power.The electronic appliances run cleaner, cooler, and quieter when running on pure sine power.
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    • dc volts to ac volts