SKU: 71484449281

Ascendo Double 18" PRO Passive Sealed Shallow Subwoofer - Black

Sale price$6525.00 Regular price$7250.00
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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
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Exchange/Return Notes
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SKU: 71484449281

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A.C.
Whiting, US
★★★★★ 1
Too many screenshot, not detail explain enough, like a lab manual than a book
Format: Paperback, Format: Paperback
Not recommended this book. This book is approximately 270 pages long, but around 200 pages are comprised of screenshots, including IDA Pro screenshots, Virustotal result screens, lists of function names, and lists of DLL file names. This book primarily shows you how to use the tools, which are illustrated mainly through screenshots of the tools' screens and results. This is a well-structured lab manual that guides you through all the necessary screens and steps to locate the flag. However, there are too many screenshots, and the concept is not explained in detail. It is expected that you will have a basic understanding to follow the lab manual. And this is not colour printing, and the photo was resized, making it a bit hard to read the screenshot details. If you are at the GREM level, you may already be familiar with using the tools. Unless you want a quick refresher on your lab skills.
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Reviewed in the United States on September 26, 2025
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Uriel Yochpaz
Massapequa, US
★★★★★ 5
Exceptional Book for Malware Analysts and Security Researchers
Format: Paperback
Uriel Kosayev did it again! MAoS is his second book, following his great first one, Antivirus Bypass Techniques. This new book takes things to the next level with a deep dive into real-world malware and reverse engineering tactics that every security researcher can learn from. It’s packed with practical examples and insights that clearly come from real experience in the field. If you’re into malware analysis or cybersecurity research, this book is a must-read. Uriel’s passion and expertise truly stand out on every page. Highly recommended!
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Reviewed in the United States on October 25, 2025
E
eyal Fishman
Louisville, US
★★★★★ 5
outstanding and highly informative book
Format: Paperback
MAoS - Malware Analysis on Steroids: Fighting Malware to the Death - Real-World Threats and Reverse Engineering Tactics by Uriel Kosayev is an outstanding and highly informative book. This is the second book I’ve read from him, after Antivirus Bypass Techniques, and once again I found the content to be extremely practical, well-structured, and insightful. Uriel has a way of explaining complex malware analysis and reverse engineering concepts in a way that is both approachable and deeply technical. The real-world tactics and examples make it not just a book you read once, but a reference you’ll return to often. Without a doubt, another excellent resource—I’m giving it 5 stars.
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Reviewed in the United States on September 10, 2025
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Arthur Donkers
Birmingham, US
★★★★★ 4
good
Format: Paperback
Good practical content, quality of images could be improved
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Reviewed in the United States on October 13, 2025
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Zachi
Birmingham, US
★★★★★ 5
Essential for Malware Hunters
Format: Hardcover
MAoS - Malware Analysis on Steroids is a clear, practical, and engaging guide to real-world malware threats. It blends hands-on reverse engineering tactics with modern case studies, making it both highly technical and easy to follow. Whether you’re new to malware analysis or a seasoned security pro, this book sharpens your skills and mindset for the fight against today’s threats.
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Reviewed in the United States on September 20, 2025

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