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msian
Total Posts: 30
Joined 08-13-2014 status: Regular |
Since the Output power is similar at 12V 1.5A with Positive at inner contact,can we use either power supply on either Synth?
Thank you. |
5pinDIN
Total Posts: 11891
Joined 09-16-2010 status: Legend |
All Yamaha PA-150 power adapters have the same output specifications: 12V 1.5A.
Since you emphasized the input current, I presume that’s your concern. Input current will vary with input voltage - highest at lowest input voltage - and is the maximum that will be drawn under normal operation. Apparent input power (not specified by Yamaha) is voltage times current. For the PA-150A, input current is 0.2A. Maximum input power is 230V times 0.2A = 46 volt-amps. For the PA-150B, input current will be maximum (0.5A) at the lowest rated voltage (100V), so input power at 100V is 50 volt-amps. Input current at the highest rated voltage (240V) will be about 0.2A, for a calculated maximum power of 48 volt-amps. The differences in calculated power are due to the current spec being given with only one significant figure (nearest tenth of an amp). Choice of PA-150/PA-150A/PA-150B should be made by matching its input voltage rating to that of the AC line (mains) voltage at your location. |
msian
Total Posts: 30
Joined 08-13-2014 status: Regular |
Many thanks 5pinDIN,
I am in Malaysia of voltage current at 230-240V 50-60Hz. I suppose it is safe to say that
Thanks again. Cheers |
5pinDIN
Total Posts: 11891
Joined 09-16-2010 status: Legend |
You’re welcome.
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Yes, either the PA-150A or PA-150B will operate at 230-240V.
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Yes, the PA-150A can act as a backup if 230-240V AC is what’s available at all your gigs. (The PA-150B is useful when moving from one country to another where the AC line/mains voltages are different.) |