🎶 READY TO SAVE? SHOP OUR ONLINE SPRING CLEANING DEALS!
Yorkville SA218S Synergy Series 2 x 18-Inch Powered Sub
MSRP: $659900
Couldn't load pickup availability
About Inventory Status
About Inventory Status
Questions? Call or text us at 301-946-8808.
♫ In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.
📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.
❓ Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.
❔ Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.
█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.
About Item Conditions
About Item Conditions
Questions? Call or text us at 301-946-8808.
New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.
Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.
Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.
Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.
Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.
B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.
Description
Description
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.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
