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Yorkville SA218S Synergy Series 2 x 18-Inch Powered Sub
Yorkville SA218S Synergy Series 2 x 18-Inch Powered Sub
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Bring World-Class Bass with the Yorkville SA218S Synergy 2 x 18-Inch Powered Subwoofer
Synergy subwoofers are Yorkville Sound’s most powerful, hard-hitting bass bins, and are recommended for clubs, theatre installs, and touring productions.
- 12000 W peak power (6000 W program)
- 2 x 18-inch woofers with 4.5-inch voice coils
- Bass reflex design
- Exceptionally high output and deep bass
- Made in Canada
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 18-inch woofers available, the best driver-specific amplification, and optimized DSP settings to bring world-class bass reinforcement to the next show.
SPECIFICATIONS
General
- System Type: Powered subwoofer
- Power Rating: 12000 W peak / 6000 W program
- Cabinet Configuration: Bass reflex
- Cooling Scheme: Convection
Performance
- Measured Max SPL: 142 dB peak / 130 dB continuous
- Frequency Response: 30 Hz - 100 Hz
- Crossover Frequency: 100 Hz
Drivers
- Driver Configuration: 2 x 18-inch neodymium with 4.5-inch voice coil
- LF Protection: Excursion, voice coil thermal RMS
Amplifiers
- HF Amplifier Type: Class D
- LF Amplifier Type: Class D
Connections
- Power Cable: Removable locking powerCON TRUE1 input and loop thru output
- In/Out Connections: 1 x XLR input, 2 x XLR full-range outputs, 1 x XLR high-pass
- Input Sensitivity: Line in 1.4 at centre, 0.56 at max
Controls and Indicators
- Controls: Thermal Limiter Advance for power consumption management
- Level Controls: -∞ to +8 dB
- Limiter: Excursion, thermal RMS, clipping
- LED Indicators: Power, excursion limit, thermal RMS limit, input clip, activity
Hardware
- Wheels: Yes
- Bar Handles: 8, 2 x bottom, 2 x top, 2 x each side
- Pole Mount Adapter: 2, 1 x top, 1 x side
- Stacking Feature: Interlocking rubber feet on sides
Construction
- Enclosure Materials: Multi-ply 15 mm birch plywood
- Covering/Finish: Paint
Dimensions
- Dimensions: 28.9 x 44 x 22 inches / 73.3 x 111.8 x 58.9 cm
Weight
- Weight: 248 lb / 112.5 kg
Manufacturer: Yorkville Sound
Model: SA218S
SKU: I759971-N-0-WHXB
UPC: 840402048589
We are Chuck Levin's Washington Music Center
Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.
Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.
Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.
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