Addicted To Audio - Home Audio Electronics & Accessories

System Audio Silverback Sub Duo Subwoofer

System Audio Silverback Sub Duo Subwoofer - Main image
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$890.34 $1349 In stock

This product is available for preorder with no ETA as of this moment.

Bass Expansion Unit
A compact bass expansion unit that partners with Sub Solo for deeper, more even low-frequency performance across the room.

Silverback Sub Duo is not a standalone subwoofer. It is the perfectly matched partner to Sub Solo, created to extend bass performance and improve low-frequency coverage in the room.

Used together, Solo and Duo deliver more depth, more precision, and a more even bass response than a single larger subwoofer. The result is not simply more bass, but better bass: cleaner, more controlled, and easier to integrate into everyday living spaces.

Silverback Sub Duo requires Silverback Sub Solo to work.

Note: Hub is required for this product and sold separately.

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Leo ★★★★★

Waited a while on preorder but the pair with my Sub Solo finally filled the low end in my room. The compact size is impressive for the depth it adds, even at low volumes.

Nicholas ★★★★★

Setting this up alongside my existing sub solo was straightforward, and the difference in low-end depth is immediately noticeable. Even at moderate volume, the bass feels more evenly distributed throughout the room. I'm really pleased with the improvement for the price point.

Victoria C. ★★★★★

The Sub Duo really tightens up the bass in my listening room, and it's a compact footprint that doesn't dominate the space. Pairs beautifully with the Sub Solo for that even low-end across the floor, though the preorder wait is the only thing I'd grumble about.