I'm using this amplifier: Buy Products Online from China Wholesalers at Aliexpress.com

To drive: 2x JBL602 4ohm car speakers.

It's for arcade machine sound effects, but I'll also use them for music.

My question is what voltage and amperage do I select for the power supply? 18V or 24V and then what current rating?

I get stuck with the calculations right away, with a 18V supply what is the max RMS power per channel that I could get into 4ohms?

Where I get stuck is: does 18V supply give me a max signal of -9V to +9V ??? (therefore 6.4V RMS, 1.6A , 10W per channel ?)

To drive: 2x JBL602 4ohm car speakers.

It's for arcade machine sound effects, but I'll also use them for music.

My question is what voltage and amperage do I select for the power supply? 18V or 24V and then what current rating?

I get stuck with the calculations right away, with a 18V supply what is the max RMS power per channel that I could get into 4ohms?

Where I get stuck is: does 18V supply give me a max signal of -9V to +9V ??? (therefore 6.4V RMS, 1.6A , 10W per channel ?)

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