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Description
Sundown Audio - Z-Series Zv.7 12"The Z v. 7 is the third step up in Sundown's 2025 "ultra high excursion" sub woofer lineup after the M and X v. 4 series. All models (12,15,18) feature our custom tooled and patented frames (US Patent Numbers D691597, D691598, and D741841) the Sundown mega platform. Please note the Z v. 7 is not available, aside from special orders, in 10s due to the motor size. We mate these new platform frames to a quad stacked 265mm (10. 43) diameter motor
The Z v.7 is the third step up in Sundown's 2025 "ultra-high excursion" sub-woofer lineup after the M and X v.4 series. All models (12,15,18) feature our custom tooled and patented frames (US Patent Numbers D691597, D691598, and D741841) – the Sundown “mega-platform.” Please note – the Z v.7 is not available, aside from special orders, in 10s due to the motor size.
We mate these new platform frames to a quad stacked 265mm (10.43”) diameter motor structure with a total magnet stack height of 100mm (3.94”) featuring a hyper-extended pole and extreme clearances (allowing over 4" p-p travel before mechanical bottom effectively making it bottomless). This is, by far, the largest motor we have ever produced on a Z series sub-woofer. The motor force factor (BL^2/RE) is ~50% higher than the previous generation Z v.6 series.
This motor drives a 3.3" diameter 4-Layer Round Wire Aluminum Voice Coil wound on a thick aluminum former. These new round wire coils use a special Sundown designed “fat wire” winding method to handle significant amounts of power and abuse.
Based on Sundown's years of experience with the Z v.4, 5, and 6 series we've also improved the voice coil ventilation yet again. The Z v.7 features an entirely new and patent-pending airflow directing pole cap, six pole OD channels, SIXTEEN gap vents, and a cross-drilled / slotted top plate to keep the voice coil running cool under extreme conditions.
The Z v.7 motor also features a 9mm thick magnet ID Faraday ring which is locked into both the top and back plates. This ring combined with an all-new pole-extension inductance sleeve gives the Z v.7 the most linear inductive performance of any mega-platform sub-woofer to date. As if all of this were not enough to cement the Z v.7as a legend... we were also able to achieve 42mm of one-way linear excursion by 70% BL with an extremely uniform curve via our extensively FEA optimized motor and 95mm long voice-coil winding length.
The Z v.7 motor also features a 9mm thick magnet ID Faraday ring which is locked into both the top and back plates. This ring combined with an all-new pole-extension inductance sleeve gives the Z v.7 the most linear inductive performance of any mega-platform sub-woofer to date. As if all of this were not enough to cement the Z v.7as a legend... we were also able to achieve 42mm of one-way linear excursion by 70% BL with an extremely uniform curve via our extensively FEA optimized motor and 95mm long voice-coil winding length.
The Z v.7 series was designed from the ground-up to become the new standard in the low-frequency / small, ported box sub-woofer category in this price range. They will work in the same enclosures that are commonly used for Sundown Audio's mega-platform sub-woofers.
The Z v.7 series, like its other mega-platform brethren, is really a different kind of woofer due to its incredibly linear suspension. They are designed for the LOWEST level of bass extension possible in a small enclosure while maintaining extremely low levels of distortion.
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Exchange/Return Notes
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4.2 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Will Help You Reach the Goal You Thought You Could Never Achieve
Format: Paperback
Quick review: if you're about to go into college, BUY THIS. If you're already in college, STILL BUY THIS.
This great book has conventional and unconventional advice. I'm already a fan of Cal Newport's advice and blog, but this book condenses his ideas that are most relevant to me (since I will be going to college in the fall of '15).
It isn't a typical 'how to do well in college' book whatsoever. This truly gives you the truth of what needs to happen to become a part of the exceptional. And he isn't writing it with the assumed purpose of impressing everybody or becoming a mega-successful overlord; he writes with the tone that leaves up the ultimate goals you have up to you. Also, the writing style is not annoying like a lot of books are.
Personally, I just want to optimize my college experience, leave my comfort zone, and get into grad school. This book will help me.
If you want to start the track of becoming a super-rich, art-gallery-going, Bentley-driving, awe-inspiring successful person, this book will still be very worth your time.
It's absolutely worth the money if that's what is keeping you on the edge of buying this.
It has countless (actually 75) useful ideas throughout, too, if you worry it has only one or two pieces of useful advice and that's it.
Bonus: if you like what you read, he has a blog with even more stuff to learn.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 5, 2014
★★★★★ 5
Fantastic Advice
Format: Paperback
I'm a senior in high school preparing for my freshman year.
This book is amazing. The advice is down to earth and believable without being preachy or perfect. Newport is perfectly willing to admit that things aren't always going to go exactly as planned, but still tells his readers how to accomplish great things. I absolutely loved the advice. Some of the advice in this book is not for everyone - APPLY TO TEN SCHOLARSHIPS A YEAR can be overwhelming and unnecessary, depending on the student. That said, it's easy to see how even applying a handful of these tips would change my college career for the better. As a student who will have to balance work, class, and a social life, I think this will be rewarding. Here are a handful of my favorite tips:
CREATE A SUNDAY RITUAL
STUDY IN FIFTY MINUTE CHUNKS
USE THREE DAYS TO WRITE A PAPER
EAT HEALTHY
VOLUNTEER QUIETLY
And the list goes on. I will definitely pack this with me in the fall.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2010
★★★★★ 5
Get it and Use it!!
Format: Paperback
Did not get to attend an Ivy or a Top 20 / 30 / 50 most selective University / College?? - But still want to make sure you don't lose out in comparison with those students who did?? Then go get yourself a physical copy of this book - read it, use it - choose some strategies and implement it. If you did - you will ensure that you maximized your college experience and did not lose out because you didn't land up going to those selective colleges. And even if you are in those selective colleges - you can use this book to maximize the value of your opportunities during your stay at those Universities. Good Luck in your quest!!!!
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Reviewed in the United States on August 5, 2025
★★★★★ 5
Wise Advice for the College-Bound Student
Format: Kindle
I read this book after reading Newport's other study guide How to Become a Straight A Student and was looking forward to more of his easy to understand, quickly read nuggets of wisdom. Although I found the advice in his previous book to be more helpful, I did fine some words of advice that I will surely put to use in my upcoming semester.
Among the gems I found, Newport reminds students to "Study in Fifty-Minute Chunks" and "Learn to Listen." In these short chapters there are ideas to help the student better utilize their time by minimizing distractions and knowing exactly what to listen for in a lecture. By far my favorite and most memorable line from this book is "A good analogy is that writing is to a college student what shooting hoops is to a basketball player." Wise advice indeed. I would recommend this book to high school an college students alike. The chapters are short and jam packed with good advice.
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Reviewed in the United States on June 25, 2012
★★★★★ 3
Good for some
Format: Paperback
Good advice but it's written for college students that don't work. Not for someone who goes to night school like I do.
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Reviewed in the United States on February 24, 2019