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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
One Systems ONE.SL12 Silver Series Outdoor Rated Loudspeaker - 12"One Systems ONE. SL12 Silver Series Loudspeakers: A high performance loudspeaker suited to both indoor and outdoor use. Weatherproof direct radiating 12" two way system with 60 x 40 HF coverage in rotomolded HDPE enclosure. 400 watts continuous power handling. 55 18,000 Hz frequency response. 8 ohm operation. IP 55 weather rated. Input weather cover with IP 68 rated gland nut. Net weight 26 kg 57. 3 lbs. Features High performance 12 inch two way
One Systems ONE.SL12 Silver Series Loudspeakers: A high-performance loudspeaker suited to both indoor and outdoor use.
Weatherproof direct-radiating 12" two-way system with 60 x 40 HF coverage in rotomolded HDPE enclosure. 400 watts continuous power handling. 55- 18,000 Hz frequency response. 8-ohm operation. IP 55 weather rated. Input weather cover with IP 68-rated gland nut. Net weight 26 kg / 57.3 lbs.
Features
- High-performance 12-inch two-way speaker that provides high intelligibility, musical fidelity and fullrange response
- 400 watts continuous, 1,600 watts peak power handling
- Rotatable 60o x 40o longthrow horn
- Includes a robust structural steel U-Bracket with duallayer, zinc-rich powder coating
- 3-stage "Rain Shield" grille
- 10 x M10 Stainless steel rigging points provide safety and high corrosion resistance
- IP 55 direct weather rating permits use for inland outdoor applications
- Input weather cover with IP 68-rated gland nut
- Optional SL.PMT pole mount bracket available
Specifications
- Frequency Response: 55 - 18,000 Hz + 3 dB
- Frequency Range: 45 - 20,000 Hz -10 dB
- Power Handling: 400 watts continuous, 800 watts program, 1,600 watts peak
- Sensitivity (1 watt @1 meter): 98 dB
- Calculated Output Capability: 124 dB continuous, 130 dB peak
- Coverage (H x V): 60o x 40o Rotatable
- Nominal Impedance: 8 ohms
- Input Connection: Barrier strip
- LF Transducer: 12 in / 305 mm with 3 in voice coil
- HF Transducer: 2.5 in / 63 mm with titanium diaphragm
- Dimensions (H x W x D), mm: 719.7 x 448.2 x 372.2 mm
- Dimensions (H x W x D), in: 28.3 x 17.6 x 14.7 in
- Net Weight: 26 kg / 57.3 lb
- Direct Weather Performance: IEC 60529 / IP 55
- Finish: Gray
- Recommended High-Pass: 55 Hz, 24 dB Butterworth
- EASE Data: www.onesystems.com/ease-data
One Systems Silver Series Loudspeakers: A loudspeaker series for even extreme outdoor use.
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 315 reviews
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Product Reviews
★★★★★ 5
Would recommend!
Color: White, Size: Queen
I bought this mattress topper for my teenage daughter for her bed. It was on sale when I purchased it and when it arrived I loved the quality and softness of the topper. Great buy for the price! It stays in place and fits as sized. I have yet to launder it, but I would assume it will wash up just fine. My daughter loves it and makes her bed dreamy.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Saved me so much money
Im loving this mattress topper. It has added a noticeable layer of comfort to my firm mattress without making it feel too soft. The cushion is plush yet supportive and has made sleeping more comfortable overall.
The bamboo feels soft and breathable. It fits on the mattress with the deep pockets and stays in place alk night. Setup was easy and it fluffed up after unpacking.
If you have a firm mattress and want extra comfort without replacing it, this topper is a great option. Highly recommend
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Comfortable, cooling, and OEKO-TEX certified, it’s a great way to refresh any mattress.
This 3-inch mattress topper instantly upgraded my bed with a softer, cooler, and more supportive feel. The bamboo-viscose fabric is noticeably breathable, helping regulate heat throughout the night—great for hot sleepers. The 1200GSM down-alternative fill adds plush, cloud-like cushioning while still offering balanced support for the back and shoulders. It fits securely with the deep pockets and stays in place even when turning. After allowing it to fully expand, the topper fluffs up beautifully. Comfortable, cooling, and OEKO-TEX certified, it’s a great way to refresh any mattress.
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Great upgrade for a rental apartment mattress
The mattress in my rental place is firm to the point where it almost feels unfinished. Instead of replacing it, I decided to try adding this topper. It made an immediate difference in the way the bed feels when I sit or lie down. There’s a nice cushioned layer that softens that “flat” feeling but still holds its shape. Another thing I noticed is how breathable it is. I expected thick padding to feel warm, but the airflow here feels better than the original mattress surface. Even after moving around, it never felt heavy or stuffy.
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Reviewed in the United States on November 22, 2025
★★★★★ 5
Soft and Comfortable Topper
I got this bamboo mattress topper for a small single bed we keep in our guest room, but I ended up testing it out myself first. The material feels soft and breathable, which is nice because that room can get a little warm in the afternoons. It adds a good amount of cushioning without making the bed too soft. After a couple of nights, my back actually felt better compared to the old mattress alone. I also appreciate that it’s machine washable, because our guest room sometimes doubles as a nap spot for my son after swim class, and spills happen. It dried pretty quickly in the dryer and kept its shape. Overall, it made the bed feel much more comfortable and fresh.
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Reviewed in the United States on November 24, 2025