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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
4.7 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Light, Moisturizing, and Smells Great, Totally Worth It
Style: Sunscreen Lotion 70 SPF, Size: 6.7 Fl Oz (Pack of 1)
I’ve been loving this Neutrogena Beach Defense sunscreen. It goes on so smoothly and feels more like a light body lotion than a typical sunscreen, which I really appreciate. It’s super easy to apply and doesn’t leave that sticky or greasy feeling that a lot of other sunscreens do. My skin actually feels hydrated after I use it, which is a nice bonus especially when I’m out in the sun all day.
The scent is fresh and beachy, not overpowering or too “sunscreen-y,” and it fades nicely after a while. It also absorbs quickly and doesn’t leave a white cast, which makes it great for reapplying throughout the day. I’ve used it at the pool, the beach, and just for everyday sun protection, and it’s held up really well every time.
It’s a little pricier than some drugstore sunscreens, but honestly, the quality makes it worth it. It feels good on my skin, protects well, and doesn’t make me feel gross after hours in the sun. I’ll definitely be picking up another bottle when this one runs out.
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Reviewed in the United States on July 22, 2025
★★★★★ 5
Protected Our Skin and Smells Good
Size: 6 Ounce (Pack of 1)
I love this stuff! My husband and I bought it as a last minute grab for our honeymoon and it was well worth it! I'm very sensitive to the sun AND to sunscreens, so I needed something with simple ingredients that would also protect my skin without breaking me out. This not only kept away the burning rash I get from the sun, but protected my husband and I from any sunburn at all. It worked not only in dry conditions, but it stayed on for hours after we swam in the ocean. We also liked the fact that it smelled herbal, almost like pizza/Italian seasoning. That didn't bother us because we both hate the smell of most sunscreens.
If you have sensitive skin or are looking for a more natural product, I highly recommend this!
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Great reef-safe, easy-to-apply sunscreen (comparison of three ThinkSport products)
Size: 6 Ounce (Pack of 1)
I will start by saying that I am used to traditional non-mineral sunscreens and tend to only buy physical/mineral-based sunscreens when I'm going to be in a tropical ocean and need something reef-safe, though more and more kids sunscreens are shifting to mineral-based. After quite a bit of research I settled on ThinkSport for my family's recent trip to Hawaii, and I'm very pleased with it. I brought and used three types of Thinksport sunscreen: Thinksport Kids lotion (yellow/orange and teal squeeze bottle), Thinksport adult lotion (Black, white, and orange squeeze bottle), and Thinksport adult spray (black, white and orange spray bottle). All protected us from sunburn and rubbed in to be invisible as long as skin was dry and free of visible hair (visible whiteness persisted around my husbands facial stubble and chest hair). The only difference between the kids lotion versus the adult lotion is scent--the kids version has a fruitier, more tropical but not-too-strong scent (possibly coconut and something else? it was hard to identify) that I found unobjectionable (though one if my kids wasn't a fan), and the adult lotion had a lighter, less sweet, more citrus-y scent (my son though maybe lime and mint, but I'm not sure that's accurate) that I LOVE. The adult spray had no discernible scent, so I suspect the kids spray might be fairly unscented as well. The easiest to apply by far was the spray--it sprays on white, but feels very light, rubs in easily, and becomes invisible quickly. I was a little worried about whether it could possibly be effective given how light and thin it felt, but it was! The lotions weren't thick for a lotion (but much thicker than the spray) and went on easily, but took more rubbing in to disappear than the spray (this is consistent with my experience with lotion vs spray in traditional sunscreens as well). Invisibility was harder to get after a second or third application or when skin was damp, but all-in-all I found all three Thinksport products to be superior to other mineral-based sunscreens I have tried in the past. In the future I'll probably buy the adult thinksport spray for my kids and husband (who all much prefer a spray-on sunscreen) and the adult thinksport lotion for myself (because I love the scent and don't mind rubbing it in).
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Reviewed in the United States on April 17, 2023
★★★★★ 5
Dependable sun protection for active days outdoors
Size: 6 Ounce (Pack of 1)
I like how this sunscreen provides reliable broad-spectrum protection and holds up well during outdoor activities. The zinc oxide formula gives me peace of mind, and I appreciate that it's water resistant and reef-safe. It applies smoothly for a mineral sunscreen and stays on effectively during sports, swimming, and long days in the sun. Overall, it's a trustworthy option for anyone looking for strong sun protection.
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Reviewed in the United States on June 8, 2026
★★★★★ 4
Clean product
Size: 3 Ounce (Pack of 1)
I only gave it 4 stars because of the smell. Of course it’s sunscreen so it’s going to have a chemical smell but this smell is just too strong for me. Other then that, it’s a great sunscreen. Does take some more rubbing in and be carful to rub it in really good or you’ll have white streaks all over your face. Leaves a bit of a white cast. You don’t need much.
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Reviewed in the United States on April 12, 2026