SKU: 65268138604

SA218S

Sale price$126744.75 Regular price$140827.50
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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:
  1. 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
SKU: 65268138604

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Skurtzo
Los Angeles, US
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
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Shanna
Boise, US
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026
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ClairY
Pawtucket, US
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
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Amazon Customer
Draper, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026
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Grma4m&m
Lexington, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Reviewed in the United States on April 25, 2026

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