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Description
Bose SHOWMATCH SMS118 Passive Subwoofer - 18inIdeal for theatres, performance venues, auditoriums, and houses of worship, the Bose Professional ShowMatch SMS118 is a subwoofer module for arrays designed to integrate with DeltaQ array loudspeakers. Offering low frequency extension down to 29 Hz, this powerful sub sports an 18" neodymium driver with a max power handling of 750W RMS. With a specifically designed Baltic birch enclosure and integrated rigging, this subwoofer is designed to quickly
Ideal for theatres, performance venues, auditoriums, and houses of worship, the Bose Professional ShowMatch SMS118 is a subwoofer module for arrays designed to integrate with DeltaQ array loudspeakers. Offering low-frequency extension down to 29 Hz, this powerful sub sports an 18" neodymium driver with a max power handling of 750W RMS.
With a specifically designed Baltic-birch enclosure and integrated rigging, this subwoofer is designed to quickly integrate with ShowMatch full-range array modules and can also be used for ground-stack deployments. With the convenient 4-point quick pin rigging system, the SMS118 supports up to 18 subwoofer modules without difficulty. The SMS118 includes a pole mounting adapter for use with other mid- and high-frequency loudspeakers.
DeltaQ Technology
DeltaQ is the next-generation array design that allows Q (directivity) to vary with each module in the array for more consistent coverage over a wide frequency range, reduced array weight and cost, and outstanding vocal clarity. Arrays can cover large vertical angles with fewer boxes.
1 x 18" Subwoofer
The SMS118 features an LF18 18" neodymium high-excursion subwoofer for low-frequency extension down to 29 Hz with mixed mid/high and subwoofer ShowMatch arrays. The 18" transducer sports a 4.5" voice coil and provides excellent performance, being essentially the same transducer as in the Bose Professional RMS218.
Tour-Level Sound Output
- LF18 neodymium high-excursion 18" woofer
- 4.5" voice coil
- 29 to 300 Hz frequency range
- Maximum power handling of 750W RMS, 3000W Peak
- 60 to 100 Hz crossover (requires active crossover in DSP)
4-Point Quick Pin Rigging
The integrated 3-point quick pin rigging system allows for arrays of up to 18 subwoofers with 10:1 safety factor.
NL4 Inputs in Front and Rear
The SMS118 features front-grille-mounted a NL4 input as well as rear NL4 inputs, allowing for easy setup of reversed box cardioid arrays.
- Bose Professional ShowMatch SMS118 18" Passive Subwoofer
- Limited 5-Year Manufacturer Warranty
Specifications
COMPLIANCE
-
EN 54-24 Certified: No
PHYSICAL
- Colors: Black
- Enclosure Material: Baltic birch plywood
- Grille: 16-gauge (1.5 mm) perforated steel, powder-coated finish
- Suspension/Mounting: 4-point “quick pin” rigging, 4 × M10 top & 4 × M10 bottom inserts, M20 pole cup
- Product Dimensions (H×W×D): 21.2 in × 30.1 in × 30.5 in (540 mm × 765 mm × 775 mm)
- Net Weight: 136.5 lb (61.9 kg)
PERFORMANCE
- Frequency Range (-10 dB): 29 Hz – 300 Hz
- Coverage, Horizontal: Omnidirectional
- Calculated Maximum SPL @ 1 m: 121 dB (free field/array), 127 dB (half-space/ground stack) continuous / 127 dB (free field/array), 133 dB (half-space/ground stack) peak
- Nominal Impedance: 4 Ω
- Power Handling, long-term continuous: 750 W
- Power Handling, Peak: 3000 W
- Sensitivity (SPL/1 W at 1 m): 92 dB (free field/array), 98 dB (half-space/ground stack)
- Coverage, Vertical: Omnidirectional
TRANSDUCERS
- Crossover: 60 Hz – 100 Hz, requires active crossover in DSP
- Low-Frequency: 1 × Bose Professional LF18 neodymium high-excursion 18 in (457 mm) woofer, 4.5 in (114 mm) voice coil
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
4.9 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Great product
Style: Sport, Size: Large
This is a lifesaver. My lab will chase the ball all day and this saves the arms and shoulders. A little bit of a learning curve to use but I would definitely recommend
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Labs love this!!!
Style: Sport, Size: Large
Our Lab LOVES everything about this thing! Recommend getting extra durable balls as the 1 included fell apart in 1 hour. I have a very energetic Lab retriever that we have to force to stop playing ball so he does not overheat. That & the force with which you can throw this ball did not help keeping it from splitting it in 2 in less than 1 hour.
This is worth the money for the extra throwing power & distance but do invest in the ULTRA strong ball for dogs like retrievers! Also, be sure to order the correct SIZE OF BALL, specific to each different size of throwing wand.
My fav thing about this item is #1 the joy my dog gets from the new challenge of racing to catch longer throws, & #2 I don't have to get my hands covered in dog slobber!!
He has gotten to where he can almost put it in the cup himself so I won't waste time throwing the ball again!
Man, I love that dog!!! ❤️
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Reviewed in the United States on November 1, 2023
★★★★★ 5
Must-Have for Active Dogs!
Style: Sport, Size: Large
The Chuckit Sport 26L Dog Ball Launcher has been a game-changer for my large dog! My 80-pound Labrador loves to play fetch, and this launcher makes it so much easier and more enjoyable for both of us.
The 26” length gives me the leverage to throw the ball much farther than I could by hand, which really helps burn off my dog’s energy. The included large ball (3”) is the perfect size for big dogs, and I appreciate that it’s made from durable rubber, so it withstands a lot of chewing and rough play.
What I really love is that the launcher is so lightweight and easy to use. I can play fetch with my dog for extended periods without my arm getting tired. The ergonomic handle also provides a comfortable grip, which is a nice touch.
If you have a large, active dog, the Chuckit Sport 26L is a must-have. It’s well-made, durable, and makes fetch more fun for both you and your dog. Highly recommend!
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Reviewed in the United States on September 3, 2024
★★★★★ 5
ChuckIt is AMAZING!
Style: Sport, Size: Large
I can't throw a ball to save my soul. Just got this today and lobbed a ball to the far end of my 1- acre yard. The dog loves it, and I love it!
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Reviewed in the United States on March 8, 2026
★★★★★ 4
I recommend using the KONG Extreme Dog Toy
Style: Sport, Size: Large
Helpful for throwing as much as my dog wants to fetch. I actually had to get a cortisone injection in my shoulder a few months after getting my dog - never had a dog with this much energy before! The Chuckit really helps.
Downside: The ball that comes with it is larger than a tennis ball, so may be too much for smaller doge. I can't imagine my sister-in-law's french bulldog carrying it! Also, in our house it gets destroyed within minutes, as my dog is a strong chewer. For this situation, I recommend using the KONG Extreme Dog Toy, Black, size Large.
This is shaped sort of like a snowman, which means it bounces unpredictably at times. My dog eventually chews the "head" off of this toy, but the remaining 2/3 still fits in the Chuckit (and is actually easier to throw with the "head" missing!). One caveat: the KONG is significantly heavier than the ball included with the Chuckit, so be aware of that...
Also, we ordered our first Chickit in October 2015, then needed to replace it in May of 2017, as it broke. I think the plastic became brittle over that time, as we left it out in the sun & rain in Florida. Since it is cheap to replace, that's not a big deal. (We ordered three Kong toys over that same period of time!)
To summarize, it's a very helpful tool to get the ball further, faster, with less strain, than without it. Knowing there are alternatives to the included ball for heavy chewers makes it worthwhile.
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Reviewed in the United States on July 19, 2017