Kenwood KAC‑921 2‑Channel Car Amplifier – Vintage High-Power Stereo/Subwoofer Am
Era: Classic 1990s Kenwood car audio component. Type: 2‑channel car amplifier with internal subwoofer crossover. Internal Subwoofer Crossover: Variable low‑pass subwoofer output with frequency range ~30 Hz–150 Hz.