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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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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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  • We offer a 30-day return/exchange service after receiving.
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4.4 ★★★★★
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K
Verified Purchase
KJ
Pawtucket, US
★★★★★ 5
Awesome for my active dog
My dog loves to play with these balls in and outside the house. They are tougher than I thought they would be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
M
Verified Purchase
Marv Tolson
Louisville, US
★★★★★ 4
Good Dog toy
I like the fact that it is a softer toy good for play with more than one dog, was disappointed in the size, earlier in the year I had ordered a ball similar to this one and it was a larger ball and not nearly as expensive as this one all in all a pretty good toy, I just liked the first one better
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Reviewed in the United States on August 31, 2021
A
Verified Purchase
Always Right
Phoenix, US
★★★★★ 3
easy to throw, get ruined easily too
my dogs go through 2 of these a week. I wish they were made better but it's the only ball they can catch on the fly without chomping their teeth.
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Reviewed in the United States on March 16, 2024
R
Verified Purchase
Rachel Schottman
Boise, US
★★★★★ 5
awesome prodcut!
love them ! say the idea yo stuff them with things my dog could pull out of them from tick tock and im glad i got them my dog loves to chew apart stuffed animals so this keeps him busy for a while and then if you hide treats in it perfect enrichment toy
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Reviewed in the United States on January 11, 2021
A
Verified Purchase
Amy C
San Leandro, US
★★★★★ 5
Dogs love this toy
This is a great size because it does not roll under the couch. Price is way higher than it was before the economy was crap.
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Reviewed in the United States on September 5, 2023

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