Ok, that sounds good. If you're running fine on 3 amps, 1.5 must be safe.
No, no, no!
The amperage rating of the power supply is irrelevant as long as it is equal to or greater than the amount of power the player needs in order to operate.
You could have a 13 volt power supply capable of outputting 2,000 amps -- and the player would only draw about 1 amp from that power supply.
Where you run into problems is taking a dual drive player which requires perhaps 1.2 amps to run it, and hooking it up to a power supply which can only deliver 8/10 of an amp.
tanstaafl.
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