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Junk item due to unconfirmed operation: ONKYO Subwoofer Black SKW-391
Product Details
The Onkyo SKW-391 is a passive (non-amplified) home theater subwoofer featuring a 20cm (8-inch) woofer. Its compact design enhances deep bass, creating a powerful sound environment. This model was primarily included with Onkyo home theater packages.
Type: Passive Subwoofer (no built-in amplifier, connects via speaker cable)
Woofer Unit: 20cm cone type
Purpose: To enhance low frequencies for home theater
Key Features: Space-saving design, deep bass from the 8-inch unit
*Note: To operate this speaker, an amplifier with a subwoofer output terminal or a compatible Onkyo home theater package is required.
This item is being sold as-is for a low price because we do not have the necessary equipment to test its operation.
Please consider purchasing if you understand this condition.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.







