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Description
SA221SSynergy Active Subwoofer This powerful dual 21 inch subwoofer is the perfect low end companion to the Synergy Array series, Yorkville Sound's largest and most powerful point source system to date. The SA221S can be combined directly with an SA153 as an independent system or in combination with the SA153 and SA315S setup as a 5 way system. Features Bass Reflex powered subwoofer: 6000 Watts (program), 17,000 Watts (peak) 2 x 21 inch Neodymium woofers
Synergy Active Subwoofer
This powerful dual 21-inch subwoofer is the perfect low-end companion to the Synergy Array series, Yorkville Sound's largest and most powerful point-source system to date. The SA221S can be combined directly with an SA153 as an independent system or in combination with the SA153 and SA315S setup as a 5-way system.
Features
- Bass Reflex powered subwoofer: 6000 Watts (program), 17,000 Watts (peak)
- 2 x 21-inch Neodymium woofers with 4.5-inch voice coil
- Exceptionally high output and deep bass
- Measured MAX SPL (C-Weighted, Max Hold): 130.6dB continuous, 142.6dB peak
- Frequency response (Hz +/- 3db): 28Hz-100Hz
- Crossover frequency (Hz): 50 and 100 Hz low-pass
- Made in Canada
Specifications
| Active or Passive | Active |
| Power Rating (Watts) | 6000 Watts Program, 17000 Watts Peak |
| Measured Max SPL (C-Weighted, Max Hold) | 130.6 dB Cont. 142.6 dB Peak |
| Frequency Response (Hz +/- 3dB) | 28 - 100Hz |
| Crossover Frequency (Hz) | 50 or 100 Hz lo |
| Cabinet Configuration | Bass Reflex |
| Driver Configuration | 2x21-inch LF woofer |
| LF Driver(s) | 21-inch Neo with 4.5-inch Tetra Coil |
| LF Power Rating(Watts) | 6000 Watts Program, 17000 Watts Peak |
| LF Impedance (Ohms) | 2 amplifiers, 4 ohms per amplifier |
| LF Protection | Excursion, Voice Coil Thermal (RMS) |
| LF Power Amplifier (Watts) | 6000 Watts Program, 17000 Watts Peak |
| LF Amplifier Type | Class D |
| Cooling Scheme | Convection |
| Power Cable | Removable Locking Powercon True Input and Loop Thru Output |
| Power Switch | Yes |
| Power Consumption (typ/max) | 1440 VA / 1920 VA |
| 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,8dB (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 | Multi-ply 15mm Birch Plywood |
| Stacking Feature | Rubber Feet and Cups (Side and Bottom) |
| Covering / Finish | Paint |
| Other Details | 4 x Locking Swivel Casters On Rear Of Cabinet, 2 Stand Adapters (1 Top, 1 Side), 2 UHMW Skid Glides On Rear |
| Dimensions (DWH xbackW, inches) | 32.750 (37.750 including casters) x 29.750 x 47.5 |
| Dimensions (DWH xbackW, cm) | 83.2 (95.8 including casters) x 75.5 x 120.6 |
| Weight (lbs/kg) | 370/168 |
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
4.5 ★★★★★
Based on 1351 reviews
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Product Reviews
★★★★★ 5
Great purchase!
Color: 9-Gold-200
I got these fancy cups for my thanksgiving dinner. I love them, perfect size, color looks fancy and elegant :) specially for a dinner with many little kids...no leaks, good quality and the box include so many cups for all the season celebrations. I'll purchase again.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
10/10!
Size: 16 Fl Oz (Pack of 1)
Works great and makes my skin soft. Smells amazing. Not greasy. Full of moisture. Great consistency, usually don’t like whipped but this is great. Makes my skin smooth and glow. Great for feet too, very versatile.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
BEST WHOLE BODY MOISTURIZER HANDS DOWN
Size: 16 Fl Oz (Pack of 1)
This is the best shea butter, whipped whole body moisturizer on the planet in my opinion. It is so thick, rich and creamy and melts into your skin. Your skin drinks this stuff in. You don't even need to rub it in but I do. It's ian incredibly thick creaminess but not like Vaseline products, it's NOT GREASY!!
It's lightly scented yet doesn't irritate my super sensitive skin. My skin gets so dry and tight that it hurts when I move. Particularly when laying in bed right after my hot bath. I use this moisturizer and my skin feels immediate relief.
Keeps my skin soft, smooth and radiant Absolutely LOVE LOVE Nivea!!
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Soft, smooth glowing 61 year old skin!!
Size: 16 Fl Oz (Pack of 1)
I love the Nivea brand and this product is excellent. It makes my 61 year old skin smooth, soft and glowy. Absorbs fast and is very moisturizing. Giant tub for the money
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Love it
Size: 16 Fl Oz (Pack of 1)
I use nivea lotions. First time trying this. Wow! Light scent, super moisturizing. Not oily, soaks in really well. Good price, and quick shipping. Will purchase again.
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Reviewed in the United States on May 23, 2026