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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
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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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Hellow
Port Orchard, US
★★★★★ 5
Love
Color: Beige (4 Packs)
Inexpensive, soft yet scrubby enough, I love these! And will order more!
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Reviewed in the United States on May 11, 2026
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Kayla
Belleville, US
★★★★★ 5
10/10
Color: Beige (8 Packs)
- came on time - exactly like picture - perfect quality - i order from this company multiple times a month trust me and them !
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Reviewed in the United States on May 3, 2026
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Juan
Louisville, US
★★★★★ 1
Do not buy
Format: Paperback
There's absolutely NOTHING in the book you can't get for free from Google.
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Reviewed in the United States on March 9, 2026
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Michal
Pawtucket, US
★★★★★ 4
Small print
Format: Paperback
I like the content, it's really interesting. But the print is so tiny, what makes reading kinda annoying.
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Reviewed in the United States on September 10, 2023
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IRstudent77
Bozeman, US
★★★★★ 4
A Tradecraft Primer
The Tradecraft Primer is very useful for anyone going into the intelligence field. It explains many of the different techniques used in the intelligence community to get analysts to expand their thinking. However, you can find the contents of this book online (as I found out after I already paid for the book), so you don't need to buy it unless you want to have a hard copy.
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Reviewed in the United States on February 18, 2010

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