SKU: 7201556201

Ascendo 18" PRO Passive Sealed Shallow Subwoofer - Black

Sale price$4612.50 Regular price$5125.00
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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12

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Description

Ascendo 18" PRO Passive Sealed Shallow Subwoofer - BlackThe18 SUB PRO PASSIVE SEALED SH subwoofer is so far above and beyond the competition in every aspect; refined musicality, tightness, and output levels suitable for a 18" driver. Combine this exceptional performance with an enclosure only 10,43 deep to accommodate a wider range of applications where larger enclosures just cant fit, and this model could possibly take the home theater market by storm. The 18 driver is an advanced carbon rohacell

The18 SUB PRO PASSIVE SEALED SH subwoofer is so far above and beyond the competition in every aspect; refined musicality, tightness, and output levels suitable for a 18" driver. Combine this exceptional performance with an enclosure only 10,43” deep to accommodate a wider range of applications where larger enclosures just can’t fit, and this model could possibly take the home theater market by storm.

The 18” driver is an advanced carbon rohacell composite sandwich cone. It is coupled with a neodymium motor with 4” Ultra-high-temperature voice coil. With a max SPL of 137dB @100Hz an , the dynamic expression and percussive impact that this sub can deliver puts it in a class by itself, let alone in such a shallow footprint as to almost disappear in home theaters or media rooms when compared to more traditional cube subwoofer designs.

In larger rooms where more output is needed (or just desired), ASCENDO also offers a Dual-18” version of this same enclosure design, with the two woofers stacked - The18-2 SUB PRO PASSIVE SEALED SH. The 143dB SPL @100Hz capability of this 48” high, 24” wide and only 11” deep defies belief until experienced.

Both models are engineered to operate perfectly in sync (in phase) with our Infrasonic subwoofers; The24, The32, The50 and The80 when there is a desire to reproduce movie content below 20Hz with the same authority, precision, and musicality. The combined results sound (and feel) like seamless and natural extensions of their individual efforts, adding to the overall addictive, immersive quality of a complete ASCENDO system.

Specifications

Speaker type

18" forward-firing, advanced carbon rohacell composite sandwich cones, neodymium motor with 4” ultra-high-temperature Voice-coil

Xmax

23mm excursion each direction (46 mm linear), voice coil remaining in homogeneous magnetic field, linear and lowest distortion

Passive | Active

Passive

Recommended amplifiers 

1Ch DSP + Amplifier are required. Min. recommended amplifier:  89 Vrms, 126 Vpk, 22,5 A; equivalent to 2000W@4?, with correct RMS & Peak limiting & compression settings

Recommended ASCENDO amplifiers  

(With additional external 1CH DSP: AIA2-6004), DSP4-6K2, DSP4-10K2  

Principle

Sealed

SPL

Calculated data
133 dB @ 63 Hz peak

Frequency range

Calculated data
33 Hz - 400 Hz /   -3 dB
22 Hz - 400 Hz / -15 dB

 Efficiency 

88 dB  / 1W/m

Power handling 

2500 W

Impedance 

4 Ω  

Air volume displacement 

2,66 L / in comparison 18" standard cinema subwoofer 1,1 L

Directivity horizontal x vertical in Deg°

360°

Input terminal

One 4-conductor Phoenix 12 AWG (3,3 mm²) push on binding post

Enclosure

Internally braced birch ply

Finish 

Matte black

Custom colour options 

Piano lacquer, colour of choice, matt or other finishes upon request

Shape customisation 

Upon request 

Mounting 

Floor standing with feet

 

Technical modifications subject to change without further notice


 

Dimensions

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: 7201556201

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G
Cuba, US
★★★★★ 5
The pooch is on Cloud No 9
Color: Blue
Lucky loves everything about this (blue) octopus. It has squeakers in all the right places and the crinkle sound adds to his fun. He’s almost 70lbs and extremely strong, and can be an aggressive player and chewer. So far, it has held up extremely well for the tug-of-war games and crazy shaking play. It’s well worth the money. I also want to mention that this toy is true to size. I have too often ordered dog toys that turned out to be much smaller than advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
N
Verified Purchase
Nicole
Grantham, US
★★★★★ 5
Cute, soft, quiet and durable
This stuffy is HUGE! I was expecting it to be half this size. We're happy to have a stuffy that does *NOT* have a squeaker. We're finding it to be very sturdy. My 4 month old puppy is a terrier mix and she loves to attack and shake stuffies and you can't tell this thing has been abused at all. Looks the same a 2 weeks later as it did new. It's one of her favorites and we love it because its quiet. Should last a long time. This is an update 4 months after purchase. The red squirrel continues to be a favorite with my puppy. With other plush toys, she tears them apart in 10 minutes. This one, somehow, has lasted months. Over time, she has pulled off the tail, the ears, and two of the legs, but the body is still intact. Amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2025
F
Verified Purchase
Fizzgig
Belleville, US
★★★★★ 5
My dog freakin’ LOVES this
Favorite toy of my dog. He’s a heavy chewer - and yes, he’s chewed the tail off and one of the ears - but he carries it around all the time - plays with it all the time - even sleeps with it. And it has held up for months. I’m getting another one just to have as a backup as I don’t think he can live without it. Also love that the eyes are embroidered and not plastic so he won’t accidentally swallow them. Best toy ever.
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Reviewed in the United States on February 8, 2026
B
Verified Purchase
Billy the Kid
Cuba, US
★★★★★ 5
Squirrel Dog Toy
Durable for my aggressive chewer Lab puppy and he loves it!!
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Reviewed in the United States on May 26, 2026
R
Verified Purchase
Reid G
Omaha, US
★★★★★ 5
Finally!
I search constantly for toys without a squeaker and never seem to find one. My curious pup loves ripping them out so I stay away from them. But finally one that he loves but has no interest in tearing apart because it has no squeaker!! Win!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026

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