YORKVILLE - Synergy 2x 21” Powered Subwoofer Dual 21

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

$3449.50

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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The most comfortable shoes I have ever had. Usually I wear size 6,5 -7. I followed recommendations and order size 6. It was a perfect fit. It was ideal for my problematic wide feet. The shoes are light weight and well made. They look great and feel as cozy as slippers. Absolutely love them and strongly recommend to go size down as I did.

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Reviewed in the United States on April 11, 2026

Verified Purchase

Birmingham, US

★★★★★ 5

Comfort and fashion collide

Size: 7, Color: Brown Leopard

These platform mules meet the following three criteria points: fashionable, comfortable, and affordable. I wear them all day thanks to the great arch support. In fact, I have three pairs in multiple colors. I normally wear a 7.5 but sized down to 7 after trying a 7 and 8.

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Reviewed in the United States on June 2, 2026

Verified Purchase

Amazon Customer

Whiting, US

★★★★★ 4

Nice looking, quality is iffy 🤷🏻‍♀️

Size: 7, Color: Black Leather

Love the look of these, nice and comfortable, or so I thought. I wore them for the first time yesterday and they rubbed the top of my foot. I hate that they are lined in a fabric that causes friction. I kept them because I loved the look of them, but, in all honesty I think they are expensive for the quality. My right shoe has scrub marks on the leather :-(

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Reviewed in the United States on March 23, 2026

Verified Purchase

Jen Cardenas

San Leandro, US

★★★★★ 5

Great Shoe

Size: 7, Color: Rosette

True to size. I wear a 7 in regular Hey Dude's and these platform ship ons are a 7 and git like a glove. Super comfy. Pink suede color is gorgeous! Great Purchase!

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Reviewed in the United States on May 23, 2026

Verified Purchase

Kim Lange

Natrona Heights, US

★★★★★ 5

NICE QUALITY

super comfortable and looks just like the picture. I usually wear 8 1/2, but since Hey Dudes don't have 1/2 sizes I purchased an 8, they fit perfect and still feel a little roomy.

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Reviewed in the United States on April 22, 2026