Ascendo 18SPV 18" Passive Vented Subwoofer
SKU: 43892294209

Ascendo 18SPV 18" Passive Vented Subwoofer

Sale price$1709.55 Regular price$1899.50
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Description

Ascendo 18SPV 18" Passive Vented SubwooferASCENDO THE18 SUB Passive Vented High Performance 18 Bass Powerhouse The Ascendo THE18 SUB Passive Vented Subwoofer is designed to deliver deep, high impact bass with precision and power. Engineered for home theatre enthusiasts and professional audio setups, this 18 inch forward firing subwoofer is built to enhance your audio experience with unmatched low frequency performance. To top it off it's only 300mm deep, making it perfect to be positioned

ASCENDO THE18 SUB Passive Vented – High-Performance 18” Bass Powerhouse

The Ascendo THE18 SUB Passive Vented Subwoofer is designed to deliver deep, high-impact bass with precision and power. Engineered for home theatre enthusiasts and professional audio setups, this 18-inch forward-firing subwoofer is built to enhance your audio experience with unmatched low-frequency performance. To top it off it's only 300mm deep, making it perfect to be positioned behind acoustically transparent screen walls.

Unrivalled Low-End Performance

Featuring an 18-inch driver with a 4-inch voice coil, this subwoofer ensures tight, distortion-free bass even at high volumes. With a frequency response extending down to 22Hz, it captures the full depth of cinematic soundtracks and live music performances.

Precision-Engineered for Optimal Sound Reproduction

Built with an internally braced MDF enclosure, the THE18 SUB minimises vibrations and resonance, maintaining sonic clarity and tight bass response. Its vented design enhances airflow, delivering powerful yet controlled low frequencies.

High Power Handling for Demanding Setups

With an impressive 1500W power handling and 4-ohm impedance, this subwoofer is engineered to work seamlessly with high-performance amplifiers. When paired with ASCENDO recommended amplifiers, it achieves a peak SPL of 122dB at 28Hz, ensuring thunderous bass with remarkable accuracy and impact.

Optimised for Professional Home Cinema Use

  • Wide Frequency Response: 22Hz – 500Hz (-12dB) for rich, dynamic bass.
  • Precision-Tuned Efficiency: 89 dB / 1W/m (4π) and 95 dB / 1W/m (2π) for high-output performance.
  • High-Excursion Driver: 8mm excursion (each direction, 16mm total) for controlled, distortion-free bass reproduction.
  • Premium Connectivity: 4-conductor Phoenix 12 AWG terminals for secure and efficient signal transfer.

Sleek & Sturdy Construction

Designed with a professional-grade black structural paint finish, the THE18 SUB blends seamlessly into any home theatre or studio setup. Measuring 700mm (W) x 1012mm (H) x 300mm (D) (without grille), this floor-standing subwoofer provides powerful performance in a space-efficient design.

Experience Deep, Cinematic Bass with Ascendo THE18 SUB Passive Vented

Whether you're building a reference-level home theatre or need high-impact bass for a professional setup, the ASCENDO THE18 SUB Passive Vented Subwoofer delivers tight, powerful, and accurate low frequencies with exceptional clarity.

Specifications

Speaker Type 18" forward-firing subwoofer with 4” voice coil
Design Principle Passive, Vented
Enclosure Material Internally braced MDF
Finish Structural black paint
Mounting Floor-standing with feet
Impedance 4 Ω
Power Handling 1500W
Efficiency 89 dB / 1W/m (4π), 95 dB / 1W/m (2π)
Frequency Range 58 Hz - 400 Hz (-3 dB) / 22 Hz - 500 Hz (-12 dB)
Peak SPL 122 dB @ 28 Hz
Excursion (Xmax) 8 mm each direction (16 mm total)
Input Terminal 4-conductor Phoenix 12 AWG (3.3 mm²)
Recommended Amplifiers AIA2-1404 Bridged, AIA2-2704, AIA4-2404 Bridged, AIA4-6004, AIA8-6004 Bridged
Minimum Recommended Amplifier 63.2 Vrms, 89.4 Vpk, 15.8A (equivalent to 1000W@4Ω with correct RMS & peak limiter settings)
Directivity (Horizontal x Vertical) 360°
Dimensions (W x H x D) (without grille) 700 x 1012 x 300 mm (27 9/16" x 39 13/16" x 11 13/16")
Height Without Feet 1000 mm (39 3/8")
Packing Dimensions (W x H x D) 830 x 1150 x 430 mm (32 11/16" x 45 1/4" x 16 15/16")
Gross Weight 60.4 kg (133.16 lbs)
Net Weight 56.5 kg (124.56 lbs)
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: 43892294209

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Clara
Battle Creek, US
★★★★★ 3
The shelves sag away from the wall overtime
Color: White, Number Of Shelves: 2, Size: 15.7in, Color: White, Number Of Shelves: 2, Size: 15.7in
Although the wood quality and finish of the shelf are clean and well-made, the main issue is that the shelves begin to sag over time while holding around 10 pounds, even though the product listing claims they can support up to 20 pounds. They may perform better on a brick wall, but on drywall you should be cautious. To fix the problem, I had to purchase floating shelf brackets for support, which solved the sagging issue. However, this defeats the purpose of the “floating” aesthetic. Since the shelf is in my bedroom, I can overlook it, but I personally wouldn’t install these in a common area if I wanted a clean floating look.
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Reviewed in the United States on May 27, 2026
M
Verified Purchase
Mo
Massapequa, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
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Reviewed in the United States on May 21, 2026
J
Verified Purchase
Jason
Battle Creek, US
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware. I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
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Reviewed in the United States on April 8, 2026
S
Verified Purchase
Sonya H
Port Orchard, US
★★★★★ 5
Excellent floating shelves look very high end
Easy to install and bracket is hidden once shelf is installed Very sturdy. Wipe clean surface.
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Reviewed in the United States on April 21, 2026
M
Verified Purchase
Marily
Alexandria, US
★★★★★ 5
Great shelves!
Size: 24x5.8, Color: Black, Size: 24x5.8, Color: Black
I love these shelves (I purchased 6 shelves total). The size I got was perfect, looks phenomenal, & quality is great too! Only negative thing I’d say is that it could be difficult for some people to set up as it needs to be leveled, & can be hard to align with other things since the part that attaches to the wall is separate from the shelf (due to its floating design) but once it’s up, it looks great. Definitely good value for money with its quality. I have them to hold up decorations/toys, & you think some of my shelves have about 5lbs of stuff on it & I’ve had no issues, so functionality is good.
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Reviewed in the United States on December 12, 2025

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