SKU: 71484449281

Ascendo Double 18" PRO Passive Sealed Shallow Subwoofer - Black

Sale price$6525.00 Regular price$7250.00
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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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

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LEE CEE DEE
Port Orchard, US
★★★★★ 5
Perfect one!
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Awesome shower liner for a great price! This one is sturdy, washable, hangs nice, and easy to use. I like mine to be clear, so this one was perfect for me. It lets a lot of the bathroom light in. The clear color works for me. It has magnets at the bottom and does not blow in so much while you are showering. You can replace whenever you want or even wash it. The price is great, so it is up to you. Good purchase!
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Kendra
Houston, US
★★★★★ 5
Great quality for an even better price!
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Was in need of a new one and this came quick and was super adorable. Great quality for the price, easy to use, water resistant, and easy to wipe/wash. Good thickness to it.
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patti
Houston, US
★★★★★ 4
Durable curtain liner!
Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Very good quality with magnets at the bottom. I would recommend highly
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Hannah Fullen
Waukegan, US
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Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
Perfect fit and easy to put up. Feels decent quality, not very thick but has been very clean
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Sheen99
Natrona Heights, US
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Color: 1a. Clear, Size: 72"W x 72"L (Pack of 1)
I was pleasantly surprised at the quality of this shower curtain liner, especially for the price. We have bad water; turns other liners a pinky orange color. This has not turned colors, thick material. And I love how it has magnets to keep it attached to the tub to avoid water getting out onto the floor
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Reviewed in the United States on April 21, 2026

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