ULS-15 MK2 Subwoofer
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Introducing the ULS-15 MK2, the renowned musician's companion subwoofer that has garnered immense popularity in music recording studios and various other contexts.
- Well-known for being a musician’s companion subwoofer
- Most popular subwoofer for music and cinematic recording studios
- Smallest subwoofer in the HSU lineup
- At its price point, the ULS is the best performer of the industry’s sealed subwoofers
- Better performance from 25 Hz on up over the VTF-2 Mk5 (like having two VTF-2 Mk5’s put together when it comes to mid-bass slam/punch)
- Mid-bass performance is fairly similar to VTF-3 Mk5 HP and VTF-15H MK2
- Most affordable 15” HSU subwoofer
- Balanced XLR inputs to protect their signal from noise caused by RF interference, RMI, etc for common usage in high-end audio and professional audio (studio, live sound environments)
- Packs a lot of performance despite the smaller enclosure
- Smooth satin black painted finish or real-wood veneer rosenut finish
- Note: Magnetic Grille has been discontinued. New orders will receive peg grille.
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ULS-15 MK2 Overview by Dr. Hsu
More Product Details & FAQs
More Product Specifications
ULS-15 MK2 Frequency Response - EQ1
ULS-15 MK2 Frequency Response - EQ2
CEA 2010 Measurements (1 Meter from woofer, Peak)
* Subtract 9 dB for 2 meter, RMS measurement
How we distinguish our products from others
What distinguishes HSU from the rest is that we are an engineering driven company. This is reflected in the quality of our products.
It is common for other companies to focus on cosmetics and marketing gimmicks. They follow the marketing adage to "sell the sizzle, not the steak". HSU is different. We focus on pure audio engineering and on building a better mousetrap. We obsessively concentrate on product performance and reliability. Each HSU product is carefully engineered by Dr. Hsu to provide "high-end" sound in its specified room type. High-end means the best of the best. We hope you will agree.
Attention to customers is another differentiator. Dr. Hsu, founder of HSU, consults privately with customers on a daily basis. This demonstrates his commitment to product quality and home integration. There are few companies who can make that claim.
30-day Satisfaction Guarantee
If you are not completely satisfied with your purchase, you have 30 days from receiving the item to begin the return process. The customer is responsible for organizing return shipping and ensuring the safe transit of the product(s). We will refund the complete purchase price, minus any shipping charges, after our technicians review the return. The refund happens under four conditions: (1) all items must be in "like new" condition, (2) there must not be any missing items, (3) the product needs to be in transit back to Hsu Research within 30 of delivery (4) you must call us to receive an RMA number. Failure to comply with these conditions may result in the item being refused, or you may be charged a 15% restocking fee. In the event that the item(s) returned arrives damaged, the customer is responsible for filing any claims with their courier. Package Orders: In the event that you receive the unit(s) damaged, a replacement unit(s) will be shipped out at no cost to you. However, if you decide to return the entire package, you will be responsible for all shipping and handling charges both ways for all returned items and the same terms as stated above will apply.
If the shipment is rejected, or if the item is sent back to Hsu Research due to failed delivery, by no fault of Hsu Research, the customer will be responsible for shipping both ways.
Hsu Research reserves the right to modify the 30-day tryout policy without notice.
Fast, insured FedEx Ground Shipping
Products are normally shipped with low cost, insured, FedEx Ground with signature required to any destination in the lower 48 states. Due to the cost of the item, we do prefer to send with signature required. However, if the customer would rather send the item with no signature required, the customer can request that in the comment section.
Note that for no signature required:
1) Once the package is delivered, Hsu Research no longer assumes responsibility for the package.
2) Due to the value of the package, it is ultimately up to the FedEx driver's discretion whether to require a signature or not.
We cannot modify the signature requirement after shipping. If you want to have the signature requirement removed, you would need to inform us, in the comment section, when you place the order.
Depending on the location, many items shipped can be held at a nearby FedEx Print & Ship Center. Please contact email@example.com or check the FedEx website to find the nearest location to you.
Shipping times within the 48 states are typically 1-5 business days depending on the location. Note that shipping and delivery times are estimates only and are not guaranteed. Hsu Research is not responsible if the shipment is delayed. The day your order is shipped, your FedEx tracking number will be emailed. For online orders, we also update your tracking page with the tracking information. If you do not receive it, be sure to check your spam folder, as some emails tend to end up there. If you are unable to locate the tracking number, give us a call or send us an email at firstname.lastname@example.org and we will be happy to provide you with the tracking info.
For orders shipped outside of the contiguous United States, there will be an additional shipping and handling charge. Email email@example.com for a shipping quote.
It is strongly recommended that you inspect the item as soon as it is delivered. If the item has arrived damaged, Hsu Research must be notified within 21 days of receiving the item.
Do you offer a local pickup option?
Yes, we offer local pickups. If you would like this option over shipping, please give our office a call. It's important to note that for local pickup, you won't be able to pay using PayPal. But all other forms of payment are acceptable.
James Larson, Audioholics, August 31, 2016
"It brought weight and power to the double bass without any sense of exaggeration. The ULS-15 mk2 effortlessly nailed the transient nature of the performance; the sharp pluck attacks of the double bass and the acute starts and stops from the slaps."
"The ULS-15 mk2 convincingly relayed the sharp thuds of bullet strikes, the rumble of distant explosions, and the subterranean pounding of outside bombardment within a cave network. Thunderous battle sequences were brought to life by the ULS-15 mk2, and I didn’t get the sense at all that these scenes were being hindered by the dynamic range of the subwoofer."
"Overall, the ULS-15 mk2 is a major improvement over the mk1, despite costing much less. It has muchmore composure at very deep frequencies and far more headroom at higher frequencies.[…] The mk2 slightly improved on all of its strengths and massively improved on its weaknesses."
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Tyler Stripko, Secrets of Home Theater and High Fidelity, July 6, 2016
"For anyone who cares equally about music and movie performance, the ULS-15 MKII is an excellent choice. So much so that I purchased my review sample."
"To my ears, the Hsu ULS-15 MKII is just about everything you could want in a subwoofer. "
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Jim Wilson, Home Theater Shack, Dec 2015
"Taken as a whole, the HSU Research ULS-15 MK2 may be the best value going in the 15" subwoofer market. At less than $850 shipped it represents an amazing bargain, yet it's not just the low price that makes it stand out. This subwoofer was executed to near perfection by HSU; from its appearance to the obvious attention to detail - and of course the magnificent sound quality - they nailed every aspect."
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Juan C. Ayllon, Ayllon Media, Oct 2015
"adds a whole new level of visceral experience to the viewing"
"handles delicate passages or those demanding speed and accuracy with ease. Bottom line, it really works in my system and is fit company for the likes of Von Schweikert, LampizatOr, and Mark Levinson equipment whether playing music or presenting action movies. Therefore, I am heartily recommending it and buying my review sample."
Dave, August 2017
After spending two weeks with this sub in my system, I can say with 100% confidence that it performs way past it’s modest price point... Will certainly be adding one more ULS-15 MK2 in the very near future since my room verges on being just large enough to require the extra headroom and efficiency that running dual subs offers. Kudos to a company that offers great products at a very fair price without resorting to unnecessary hype! These fine products perform superbly and speak for themselves.
Daniel Dion, Canada, June 2017
"... Whatever for movies or music, this is the subs to get for the money."
Brett, July 2017
I wanted to take a few lines to let you know how the new subwoofer has been performing. Over the last several weeks I have had the chance to audition it through various forms of music and movie soundtracks and I must say that the ULS-15 MK II is an exceptional piece of hardware. While the existing system was no slouch, the ULS-15 filled out the sound and tightened everything up in a way that can only be described as sonic perfection. I have had numerous people from all walks of life over to EXPERIENCE the sound that my home theater is now capable of producing and I have heard time and time again from them that I HAVE NEVER HEARD ANYTHING LIKE THAT BEFORE. The journey to complete my home audio system has been a long and winding road, and I want to thank you for providing the piece that finally finished it. I will be sending anyone looking for top rate audio equipment your way, and thank you for helping me to bring the sound that was always in my head into the real world."
Jim Wilson, Home Theater Shack
"The HSU Research ULS-15 MK2 may be the best value going in the 15" subwoofer market. At less than $850 shipped it represents an amazing bargain, yet it's not just the low price that makes it stand out. This subwoofer was executed to near perfection by HSU; from its appearance to the obvious attention to detail - and of course the magnificent sound quality - they nailed every aspect."
Up to 7-Year Warranties
30-Day Satisfaction Guarantee
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