STK400-490 amplifier equivalent, 3ch af power amplifier.
* Pin compatible with the 3-channel output devices (STK400-×00 series) and 2-channel output devices (STK401-×00 series)
* Output load impedance RL=6/3Ω supported .
It comprises two 25W channels (left and right) and a 50W channel (center) in a single package. It is fully pin compatib.
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