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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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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
4.2 ★★★★★
Based on 959 reviews
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Product Reviews
★★★★★ 1
Larger than life
Size: X-Large, Color: Ocean Blue
The fit is large! So go down a size. It’s soft and seems like good quality, but absolutely huge
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
★★★★★ 5
Very good quality sports bra.
Size: Large, Color: Navy
Very good sports bra. It is high quality and made well. It is a full coverage bra which gives it good support but also makes it a little hot especially in warmer temperatures but at the same time it is very nice for cooler temps.
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Reviewed in the United States on January 20, 2026
★★★★★ 4
Supportive and Comfortable but Size Down!
Size: X-Large, Color: Navy
Very supportive for the big chested girlies! Material is comfortable and sweat wicking. I’d recommend sizing down for a snug fit.
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Reviewed in the United States on January 25, 2026
★★★★★ 5
Nice fabric, comfortable, easy maintenance
Special Size: 27.5" Full Length, Size: Large, Color: Taupe, Special Size: 27.5" Full Length, Size: Large, Color: Taupe
I ordered a medium and they’re actually a size large. And they are just too large. I should’ve gotten the small, as recommended I thought I was ordering medium and I think I would’ve been OK with a medium, but where I usually wear a small and they sent me a large. It was just ridiculously large. They are lightweight and they are warm. I’m a senior and I’m thin so I get cold very easily especially in early morning and evening, so I like to wear them in the morning for my walks/yoga , they also work nicely under a longish skirt so it’s not so sheer… will definitely get more but will go with the small size. Just for reference, I’m 5 foot seven I usually wear a small or a size 5/6 usa size so these were too large, particularly in the waist just overall they were too large, but I think even if I got a small size they’re still gonna be kind of large in the stomach. I have an hourglass shape just for reference, but they are very comfortable, and I love the fabric. I am keeping them because I like the fabric and I really need them. I just will not wear them out of the house right now because they’re not fitting properly but next go round we’ll get the right size. Price was right they were having a sale so it was a bit of an impulse buy. But hello it was only 10 bucks! so that’s why it’s not worth sending it back for me. Overall, very nice quality and would recommend. Cats like the fabric too! 😸
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Buttery soft and flattering fit
Special Size: 27.5" Full Length with Pockets, Size: Small, Color: Taupe
I love these leggings! They are buttery soft (as advertised) and have a very flattering fit. Also the grey/beige color is really pretty. About to buy another pair in black! Highly recommend!
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Reviewed in the United States on May 17, 2026