SKU: 37441820373

Ascendo ASC-24SPAS The24 SUB 24" PRO - Active Infrasonic Sealed Subwoofer

Sale price$15300.00 Regular price$17000.00
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Description

Ascendo ASC-24SPAS The24 SUB 24" PRO - Active Infrasonic Sealed SubwooferHigh performance infrasonic subwoofer re defined The SMSG24 infrasub is a statement. Its huge cone surface area and huge 90 mm of linear stroke represents a world record for cinema subwoofers allow it to move a gigantic volume of 10 litres of air per stroke to pressurise the room. Due to its ultra low resonance frequency and its sealed enclosure design the group delay is several times faster than the smaller 18", 15" or 12" subwoofers at the same

High-performance - infrasonic subwoofer re-defined

The SMSG24 infrasub is a statement.

Its huge cone surface area and huge 90 mm of linear stroke - represents a world record for cinema subwoofers - allow it to move a gigantic volume of 10 litres of air per stroke to pressurise the room. Due to its ultra-low resonance frequency and its sealed enclosure design the group delay is several times faster than the smaller 18", 15" or 12" subwoofers at the same frequency. Also the acoustic power output per cubic inch is by far in favour of this unique design compared to stacked multiple smaller subwoofers.

Its ingenious design allows the ASC-24SPAS to produce frequencies in the infrasonic frequency range with authority, reaching down lower than subwoofers with a smaller diaphragm surface ever will. At the same time this infrasub renders those notes with much more power, structure and resolution. This AIA-developed 62 cm / 24" super woofer is powered by one of the best high current amplifier designs delivering 6000 watts of power for multiple seconds. Its state-of-the-art DSP control allows to perfectly align the ASC-24SPAS to any existing setup by adjusting crossover, phase and amplitude response.

The ASC-24SPAS ideally suits not only all types and sizes of cinemas, but also high-end stereo systems. Much of the spacial room information of the recording environment in a great audiophile recording is contained in the sub 30Hz audio band. You will hear more details in mid and high frequencies.


ASC-24SPAS - more bass pressure, depth, structure, attack, imaging equals more enjoyment.

Specifications 

Speaker type

Custom-built 24“ woofer, 13cm voice coil, 90mm linear excursion (world record), with AIA Speaker Management technology

Principle

Sealed

SPL

120dB Cont. / 122dB Peak (@30Hz)

Frequency range

10Hz to 55Hz

Amplifier

6000W

Width x Height x Depth

700 x 1100 x 500mm

Weight

110kg

 

All speakers are supplied with a front grille as standard

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: 37441820373

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4.4 ★★★★★
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lynn martinez
Phoenix, US
★★★★★ 5
Blk mule
Size: 8.5, Color: Black
They really nice. Good looking and feel comfortable. But I believe they run small. I’m an exchange them for a size up.
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Reviewed in the United States on February 2, 2026
C
Verified Purchase
Catherine
Charlottesville, US
★★★★★ 5
LOVE THEM ❤️
Size: 9, Color: Hazelnut
LOVE THESE ❤️ COMFORTABLE.. WELL MADE.. BEAUTIFUL 😍
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Reviewed in the United States on March 17, 2026
D
Verified Purchase
d & d
Pawtucket, US
★★★★★ 5
Genuine leather upper and well made
Size: 10, Color: Sunlight
These shoes are well made and I love the way they look. They look great with jeans or dresses. I usually wear a 9 1/2 or 10 depending on the brand. These are a size 10 and fit. Hopefully after a breaking in period the opening at the toes will loosen up. Also, when walking they make a slap slap sound. Again, hoping after they break in that won't be the case. I got a great deal and poof a couple of days later there was a slightly better deal. I wasn't sure I'd like the color but it's actually really nice. The upper is genuine leather and they are well made.
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Reviewed in the United States on December 6, 2025
M
Verified Purchase
Mytwocents
New York, US
★★★★★ 5
Beautiful shoe
Size: 7, Color: Smoke Grey
This shoe is fairly narrow, which works fine for my narrow feet. Comfortable. Light. Nice color will match with lots of colors. Fairly comfortable but the skinny part by the toe I see how this would give anyone with a medium side foot blisters. It’s fine on me.
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Reviewed in the United States on August 23, 2025
D
Verified Purchase
Deena
Pawtucket, US
★★★★★ 4
Runs small
Size: 8.5, Color: Sandstorm
This shoe is super cute and comfy. I usually wear an 8 or an 8½. I ordered the 8½, but it was too small, so I had to send it back. I reordered a 9, and it fit perfectly.
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Reviewed in the United States on July 20, 2025

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