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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
4.7 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
good purchase
Color: Red Nylon Yellow Hotdog
This thing is great for hi anxiety dogs and dogs that ned to have something to do or to chew. It will take them a while to get through to it. I was told that it was indestructible but I knew if there was a dog that could do it, it would be mine, and she did. But it took her some time. But she loves it and it keeps her busy.
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Reviewed in the United States on July 24, 2025
★★★★★ 5
Cute and durable!
Color: Red, Color: Red
My dog absolutely loves this toy! I'm not sure why people are complaining it's too hard, it's a nylon dog chew toy, it's supposed to be hard. I love the little holes in the lattice top I can stuff with treats. It keeps my very (VERY) active dog busy for a long time. I would definitely recommend this if you have a power chewer. It's also super cute, I just love to see him tote around a piece of pie.
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Reviewed in the United States on May 15, 2021
★★★★★ 5
Excellent product.
Color: Red Nylon Yellow Hotdog
Excellent product. Dogs loved it!
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Durable
Color: Red Nylon Yellow Hotdog
Durable and safe - made in USA. Dog enjoys it, and pet parents are delighted that it is safe for their fur baby. I bought the toy as a gift.
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Reviewed in the United States on January 4, 2026
★★★★★ 3
Pretty Good
Color: Red Nylon Yellow Hotdog
The toy is good for a heavy chewer, but is very slippery. You may want to rough it up a bit before giving it to your dog so they can hold onto it.
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Reviewed in the United States on March 31, 2026