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YORKVILLE - Synergy 2x 21” Powered Subwoofer Dual 21" Bass Reflex Powered Subwoofer: 6000 watts (program), 17,000 watts (peak) 2 x 21-inch LF woofers with 4.5-inch voice coils. Exceptionally high output and deep bass.

Marsoni M251S
Sale price$3449.50
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Get it in 3 business days with 1 day shipping. Friday, May 29
YORKVILLE - Synergy 2x 21” Powered Subwoofer Dual 21" Bass Reflex Powered Subwoofer: 6000 watts (program), 17,000 watts (peak) 2 x 21-inch LF woofers with 4.5-inch voice coils. Exceptionally high output and deep bass.This powerful dual 21 inch subwoofer offers the highest peak power and deepest bass response of any speaker in the Synergy series, Yorkville Sounds largest and most powerful point source system. The SA221S can be combined with an SA153 as an independent system, or with the SA153 and SA315S as a 5 way system. If it were any more powerful, it would have to be measured on the Richter scale. Features 17000 W Peak Power (6000 W Program) 2x 21 Neodymium
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Your YORKVILLE - Synergy 2x 21” Powered Subwoofer Dual 21" Bass Reflex Powered Subwoofer: 6000 watts (program), 17,000 watts (peak) 2 x 21-inch LF woofers with 4.5-inch voice coils. Exceptionally high output and deep bass. orders ship within 1-2 business days.

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DCB
Los Angeles, US
★★★★★ 5
Valet Tray
Size: 8.5" x 5.8" x 1.9", Color: Black
Perfect!
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Reviewed in the United States on April 7, 2026
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Joseph Klobuchar
Carnegie, US
★★★★★ 5
Just lovely
Size: 8.5" x 5.8" x 1.9", Color: Orange
Purchased this several months ago and liked it, but I had received so many complements on this tray since then I had to submit this review. The tray is sturdy and put together well, and the size is exactly what was given before purchase.
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Reviewed in the United States on May 27, 2026
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Concerned Buyer
Waukegan, US
★★★★★ 5
Looks good, feels good for my pocket.
Good price, while still being stylish. Slots fit all my major items shown above and now I cannot live without it.
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Reviewed in the United States on May 18, 2025
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Akwei Bortey
Chelsea, US
★★★★★ 5
Functional and aesthetic
Does what you expect it to do. Great for organizing, very functional and very easy to incorporate into your table design.
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Reviewed in the United States on April 26, 2025
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AEckert
Pawtucket, US
★★★★★ 5
Great purchase
My husband loves this so he has a place to put his phone wallet and keys and always knows where they are. Great idea! Small, keeps you organized, solid, good looking and gets the job done!
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Reviewed in the United States on October 24, 2024

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