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Description
SA218SSynergy Dual 18 Inch Powered Subwoofer Designed for the most discerning ear for bass, the SA218S can be combined directly with an SA153 or SA102 as an independent system or in combination with the SA153 and SA315S setup as a 5 way system. Powered by a standard 15 amp wall socket, the SA218S boasts 12,000 watts, the maximum output with this amount of power. The SA218S is voiced for all live and DJ music and excels where high output and deep bass
Synergy Dual 18-Inch Powered Subwoofer
Designed for the most discerning ear for bass, the SA218S can be combined directly with an SA153 or SA102 as an independent system or in combination with the SA153 and SA315S setup as a 5-way system.
Powered by a standard 15 amp wall socket, the SA218S boasts 12,000 watts, the maximum output with this amount of power. The SA218S is voiced for all live and DJ music and excels where high output and deep bass extension is a must.
In step with all Synergy products, the SA218S is no-compromise subwoofer, using the best 18" woofers available, the best driver-specific amplification, and optimized DSP settings.
Features
- 12,000 Watts (Peak) 6000 Watts (Program)
- 2 x 18-inch woofers with 4.5-inch voice coils
- Bass reflex design
- Measured MAX SPL (C-Weighted, Max Hold): 130.6dB continuous, 142.6dB peak
- Made in Canada
Specifications
| System Type | Active Subwoofer |
| Active or Passive | Active |
| Power Rating (Watts) | 6000 Watts Program (12000 Watts Peak) |
| Measured Max SPL (C-Weighted, Max Hold) | 130dB Cont. 142 dB Peak |
| Frequency Response (Hz +/- 3dB) | 30Hz-100Hz |
| Crossover Frequency (Hz) | 100 Hz lowpass |
| Cabinet Configuration | Bass Reflex |
| Driver Configuration | 2x18" LF woofer |
| LF Driver(s) | 18-inch Neodymium with 4.5-inch Voice Coil X2 |
| LF Impedance (Ohms) | 8-ohm Load x 2 |
| LF Protection | Excursion, Voice Coil Thermal (RMS) |
| LF Amplifier Type | Class D |
| Cooling Scheme | Convection |
| Power Cable | Removable Locking Powercon True Input and Loop Thru Output |
| Power Switch | Yes |
| Inputs | 1 XLR with 2x XLR Parallel out, Impedance 35k ohms |
| Input Sensitivity (Vrms Sine) | Line in 1.4 at center, 0.56 at max |
| Level Controls | Volume, -∞,0dB,10dB (Min, Top, Max) |
| EQ Controls | Thermal Limiter Advance for power consumption management |
| Limiter | Excursion, Thermal (RMS), Clipping |
| LED Indicators | Power, Excursion Limit, Thermal (RMS) Limit, Input Clip, Activity |
| Enclosure Materials | Multiply 15mm Birch Plywood |
| Stacking Feature | Interlocking Rubber Feet (Sides) |
| Covering / Finish | Paint |
| Dimensions (DWH xbackW, inches) | 28.872 (including Casters) x 44 x 22 |
| Dimensions (DWH xbackW, cm) | 73.33 x 111.76 x 58.88 |
| Weight (lbs/kg) | 248/112.49 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 492 reviews
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Product Reviews
★★★★★ 5
Indestructible
Style: Fetch Balls (Pack of 2), Size: 3 inch
These balls are indestructible! We have a lab and a lab mix and they CANNOT damage these balls. They love them for fetch and to just chew on them (slightly squishy, but NO damage). Best toys we have bought for them.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Great trial set. Just be careful throwing the orange one!
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Blue isn't that easy to see in the yard
White charges with bright light/UV and is truly a game changer for night-time fetch. Both dogs clearly favor it.
Orange is easy to see in the grass at day
They're 3 different weights as well, so double trial. I prefer medium for my big dogs, though light performs well too
The orange is HEAVY and unyielding. Do NOT throw it with a ball thrower. It could damage your house or knock your dog out. Seems tough though.
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Reviewed in the United States on January 16, 2026
★★★★★ 3
Not as good as chuck it anymore
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
I have bought these before and the where just like the chuck it balls. These are not those balls. The are lighter and my dog has already cause damage to one
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Great for heavy chewers! Belgian Malinois Approved!
Color: E) 8-Pack 2.5" Balls (Yellow)
I bought these 6 months ago because my dog kept loosing his Kong balls. These were such a better price ball (but still had good reviews) that I thought I would give them a try. They are wonderful. After six months of chewing and chasing and playing with a Belgian Malinois, the two that I’ve gotten out are still in great condition. The bright color makes them easier to find, so none have been permanently lost yet.
They are bouncier and a little bit lighter weight compared to the Kong balls of the same size, which I honestly appreciate because my maligator likes to shoot them at my feet.
So far the material seems high quality and I feel safe letting the dog chew on it for hours on end.
The 8 pack was cheaper than 2 Kong balls. A great deal for a great product!!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Durable, high-bounce dog balls that hold up well to energetic play
Color: D) 4-Pack 3" Balls (Yellow)
The Chew King 3-inch rubber balls have been great for active play sessions. The rubber feels thick and durable, and the bounce is surprisingly lively compared to many standard dog balls. They’re the perfect size for medium to large dogs and are easy for dogs to carry, chase, and retrieve. After repeated games of fetch, the surface has held up well without cracking or losing its shape.
One thing that stands out is how easy they are to clean. Dirt and slobber rinse off quickly, so they’re ready for the next round of play. The bright color also makes them easier to find in grass or bushes compared to darker toys.
For longer life, it helps to supervise play if your dog is a very aggressive chewer, since these are designed more for fetch than constant chewing. Also, rotating toys every few days can keep dogs more engaged and extend the lifespan of each ball. Overall, this is a solid set of durable fetch balls that provide great bounce and reliable outdoor playtime fun.
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Reviewed in the United States on March 5, 2026