BLAUPUNKT BPA-E604. Amplifier Install Kit. 4-CH Class AB Amplifier. 4-Channel 60 Watts @ 4-Ohm Class-AB Amplifier. Power Output 4-Ohm (watts): 60W x 4CH. Power Output 2-Ohm (watts): 90W x 4CH. Power Output BTL (watts): 180W x 2CH.
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