YORKVILLE - Synergy 2x 18” Powered Subwoofer Dual 18” Bass Reflex Powered Subwoofer: 6000 watts (program), 12,000 watts (peak) 2x18” LF woofers with 4.5” Voice Coils. Exceptionally high output and deep bass.

YORKVILLE - Synergy 2x 18” Powered Subwoofer Dual 18” Bass Reflex Powered Subwoofer: 6000 watts (program), 12,000 watts (peak) 2x18” LF woofers with 4.5” Voice Coils. Exceptionally high output and deep bass.

Marsoni

M251S

$2399.50

Get it in 3 business days with 1 day shipping. Friday, May 29

YORKVILLE - Synergy 2x 18” Powered Subwoofer Dual 18” Bass Reflex Powered Subwoofer: 6000 watts (program), 12,000 watts (peak) 2x18” LF woofers with 4.5” Voice Coils. Exceptionally high output and deep bass.Synergy subwoofers are Yorkville Sounds most powerful, hard hitting bass bins, and are recommended for clubs, theatre installs, and touring productions. The dual 18 inch SA218S sits comfortably between the single 15 inch and dual 21 inch Synergy subs. It can be combined with an SA102 or SA153 as an independent system, or with the SA153 and SA315S as a 5 way system. Like all Synergy speakers, the SA218S is designed without compromise. It uses the best

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So the quality of this not great, but good enough and they look nice enough on the wall. However, the bracket holes are not spaced at 16" intervals. WTF? I'm not sure who designed this thing. The molly plugs that came with it look OK, but to play it safe I used a cobalt steel drill bit and made my own holes in the bracket. Easy enough with some wd40. My other pick with this is that the screws to anchor the shelf to the bracket are black and and very obvious... they should have supplied some kind of cap.

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Reviewed in the United States on January 31, 2026

Verified Purchase

Judy

Birmingham, US

★★★★★ 5

Great purchase

Color: Ink Black, Size: 2 pack

The set is sturdy, easy to assemble and are visually pleasing. Great value for the money.

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Reviewed in the United States on May 12, 2026

Verified Purchase

bradley e.

Omaha, US

★★★★★ 5

Sturdy and Nice

Color: Ink Black, Size: 2 pack

Very Sturdy and good looking

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Reviewed in the United States on March 28, 2026

Verified Purchase

KAREN MARIE

New York, US

★★★★★ 5

Great value!

Color: Ink Black, Size: 2 pack

Really sturdy and a great value for the money. Almost idiot proof when putting it together, too. The drawing is very specific, and everything is really well marked and numbered. This isn’t fine furniture, but it really is a great value for the money!

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Reviewed in the United States on January 19, 2026