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Jrc4558 amp op diagram pinout datasheet ic internal connection dual amplifier mentioned shown above belowCircuit bass diagram booster woofer 4558 ic subwoofer supply power using only dual quality high Low noise pre tone control circuit using 4558.
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Low noise pre tone control circuit using 4558 - NE55532
JRC4558 Op-Amp Pinout, Features, Alternatives & Datasheet
IC 4558 Galaksi Circuit - Electronic Circuit
4558 Subwoofer Bass Booster Circuit Diagram | Bass Circuit For Woofer