SKU: 71484449281

Ascendo Double 18" PRO Passive Sealed Shallow Subwoofer - Black

Sale price$6525.00 Regular price$7250.00
Save 10%

Pay in installments of $1812.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Ascendo Double 18" PRO Passive Sealed Shallow Subwoofer - BlackThe18 2 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 theatre market by storm. The 18 driver is an advanced carbon rohacell

The18-2 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 theatre 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 theatres 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 10,43” 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

2х18" 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 + 1 or  2Ch Amplifier are required. Min. recommended amplifier:  89 Vrms, 126 Vpk, 45 A; equivalent to 4000W@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
139 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 

5000 W

Impedance 

4 Ω  per woofer

Air volume displacement 

5,32 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: 71484449281

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 22 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Brynn P
Los Angeles, US
★★★★★ 5
Go to summer flowy pants! Plus size friendly!
I'm OBSESSED! I'm 5'5 195lbs and got a XL in these. I will be purchasing more! Very plus size friendly! So comfortable, the quality is great, they breathe well and the stretchiness of the band is amazing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
T
Verified Purchase
Tor
Bozeman, US
★★★★★ 4
Big size down but super cute
Size: Large, Color: Brown Black
Really big size down I got the xl cause I’m 12/14, 190 lbs and 5’3 and they are huge I could easily have done a large!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
G
Verified Purchase
GreenHouse
Los Angeles, US
★★★★★ 5
Wide leg snatched waist band
Size: X-Large, Color: Brown Black
These pants are perfect. The material is thin but not see through. They are breathable and are truly wide leg and made well for us tall girlies. I'm 5"8 and I usually wear 16/18 pants. I have a short torso, all legs and these pants fit me perfectly. The waist band is a nice snatch for a body suit top. I'm happy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
A
Verified Purchase
ashlee
Boise, US
★★★★★ 5
Great set of sheets
Color: Blue Pinstripe, Size: Twin
These microfiber sheets are incredibly soft and comfortable, especially for the price. I purchased the blue and white set for my daughter’s bed, and she loves them. The colors are bright and exactly as pictured. They fit the mattress well, don’t slip off the corners, and wash up nicely without pilling or fading. The brushed microfiber feels cozy and lightweight, making them great for year-round use. Overall, a great value and I would definitely buy another set.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
C
Verified Purchase
Chansis Crpz
Massapequa, US
★★★★★ 5
Bold Colors, Great Quality, and an Amazing Price - Perfect Everyday Sheets
Color: Black, Size: Full
The Amazon Basics lightweight bed sheets have been such a great buy for my boys’ bedrooms. They come in a wide variety of colors, which made it easy to match each room’s style — and the colors stay bold and vibrant even after multiple washes, which honestly surprised me. The quality is excellent for the price. The fabric stays soft, doesn’t pill, and holds up well to frequent washing (a must in kids’ rooms!). Each set includes a fitted sheet, flat sheet, and two pillow shams, which makes the value even better — most sets at this price point don’t include that many pieces. Overall, these sheets are affordable, durable, colorful, and comfortable. I loved them enough to buy them in multiple colors, and they’ve held up beautifully. A fantastic budget-friendly choice for any household.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026

recommand products