I only checked the power, it works, but I didn't check the audio outputs, so the condition is unknown. The Pioneer GM-X924 is a vintage 4-channel bridgeable car audio amplifier from Pioneer's GM-X series, designed for high-quality audio reproduction in car audio systems. It is known for robust build quality, including massive bus-bar power distribution and dedicated speaker output rails for reliable, high-power delivery. Key Features and Information: Channels: 4-channel bridgeable design. Series: GM-X1024 / GM-X924 series (often paired in service literature). Design: Known as a high-fidelity car audio amplifier.
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