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Showing posts with label HSU Vs SVS. Show all posts
Showing posts with label HSU Vs SVS. Show all posts

HSU Research Subwoofers Review[Specs and Review]

 HSU Research Subwoofer VTF-2 MK5 Review

                                   "PROS AND CONS"


◉ Very good sound quality

◉ Feature rich for the price

◉ High dynamic range for the price

◉ Solid extension down to 18 Hz

◉ Not tremendously heavy or bulky


◉ More internal cabinet bracing would be nice


HSU Research  Subwoofer stf-2

VTF-2 mk5 Introduction:

It’s not easy being a middle childVTF2 facing left.jpg. The older sibling gets all the glory, and the younger sibling gets all the affection, but the middle child has to struggle just to get noticed. The same can be true of product lines from almost any manufacturer.

The entry-level product is the most accessible since it is the most affordable, the top-of-the-line product provokes the most excitement since it is usually the most powerful and/or most feature-packed, but the middle product often just elicits a shrug.

Hsu has recently updated the middle child of their VTF subwoofers, the VTF-2, to its fifth iteration, the mk5. In this review, we will determine whether the VTF-2 mk5 is a standout child or simply a middle rung in the ladder of Hsu’s VTF subwoofers.

The VTF-2 has been a part of Hsu Research’s VTF subwoofer line for 17 years and has developed considerably in that time through a number of iterations.

The ‘VTF’ stands for ‘Variable Tuning Frequency’ and is Hsu’s line of ported subwoofers that use multiple ports that adjust the tuning point to the user’s preference. The first VTF-2 used a down-firing 10” driver and a 150-watt regular Class AB amplifier in a 2.9 cubic foot cabinet. Through every version, it has steadily grown and improved, and the newest VTF-2 sports a front-firing 12” driver, a 350 watt BASH amplifier, and 3.9 cubic foot enclosure.

Happily, one aspect about the VTF-2 which has not substantially increased over the years is the price: the original sold for $499 whereas the mk5 sells for $539, and this is likely due to a combination of Hsu Research’s maturation as a manufacturer and also the lowering of cost of technology manufacturing in that time.

HSU Research  Subwoofer vtf 15h mk-1

Unpacking and Set Up:

The VTF-2 mk5 arrives in a large but not unmanageable box emblazoned with the Hsu logo. Like all Hsu subwoofers that are shipped in the continental USA, there is a demo CD in the packing envelope featuring a handful of orchestral tracks and a variety of test tones.

 The box is sealed with both heavy-duty staples and packing tape, and opening it reveals a thick foam top piece that looks very adequate for the task of protecting the subwoofer during rugged shipping. The VTF-2 is sandwiched by these large foam pieces, and a plastic bag covers the subwoofer to protect it from moisture. 

Altogether the packing is very practical and effective, and it would take particularly brutal shipment to damage this subwoofer.

The owner’s guide, which is also available on the company website product page, is appropriately accessible for novice subwoofer owners and contains good advice for fine-tuning and placement even for more experienced subwoofer owners. It’s more than a perfunctory guide and is a worthwhile read for new owners. 


At 20.5” high and 22” deep, the VTF-2 mk5 is probably not many people’s idea of a small subwoofer. That is not to say it is gigantic but perhaps on the large side. It has a rugged vinyl black finish that is not quite as fine as the satin black on Hsu’s higher end subwoofers, but it does present a clean appearance and would not be as easily scratched.

The VTF-2 mk5 will not dazzle anyone with beauty, but, with its rounded edges, it has a clean simplicity that would be innocuous in a room’s corner. It is a perfect height and shape to serve as an end table for those who want some near-field punch and can accommodate that kind of placement. With grille on, it is simple and smooth black box, but with grille off, a gleaming cone and two sleek ports exudes a readiness to rock. I prefer the VTF-2 mk5 with the grille off!

Design Overview:

It is difficult to pin down the foremost feature of the VTF-2 mk5 since it is an evenly balanced design. To begin discussion of its design, we will start with the feature that most distinguishes it from many competing subs, namely the dual-port variable tuning.

Hsu’s variable tuning subwoofers have been around for years now, and for those not acquainted with the idea, here’s a brief explanation. The function of ports on speakers and subwoofers is to produce sound more efficiently in low frequencies than the drivers are able to.

They do this by using the backward motion of the woofer into the cabinet to resonate the air mass within the port. The port’s length and width affect the frequencies at which the port generates sound; the longer a port is with respect to its width, the deeper frequencies it will produce. However, the wider a port is, the more output it will generate at its resonant frequency.

Placing multiple ports in a speaker or subwoofer will act like one port that has the width of all the ports combined. In systems such as Hsu’s VTF subwoofers, the user can exchange output headroom at higher frequencies for lower frequency output by plugging one of its ports, thereby increasing the length of the ports with respect to their collective width. This enables the subwoofer to play deeper frequencies far more effectively but at the cost of output potential at some frequencies above that point. 

                                  HSU Research  Subwoofer amplifier

The VTF-2 mk5’s variable tuning system allows the user to have either bass extension down to 18 Hz or more output at 25 Hz and above. The exact amount of trade-off of deep bass extension vs. efficiency at higher bass frequencies can be seen in our measurements and analysis page.

The user can also seal both ports, which substantially reduces deep bass output. This can be handy in small rooms that can boost deep bass to excessive levels. Simply plugging or unplugging a port is not all there is to the VTF system.

A control switch on the amplifier plate changes the frequency of a low frequency filter since the driver needs to be protected below the tuning frequency of any ported system. Below the port tuning frequency, there is not enough resistance from internal air pressure on the back of the woofer to stop the driver from flying too freely and easily bottoming out which can potentially damage it.

When both ports are open, the filter switch labeled ‘operating mode’ should always be set to ‘EQ 2’, but any other combination of operating mode settings and port closures will be safe configurations to use

HSU Research  Subwoofer Review

For the VTF-2 mk5, Hsu has upgraded the BASH amplifier to a 350-watt unit, up from the 250-watt amp of the mk4. The BASH (Bridged Amplifier Switching Hybrid) amplifier technology combines the sound quality of AB amplifier topologies with the high efficiency of Class D amplifiers.

Among the features of the VTF-2’s amplifier, a Q control is used to manipulate the slope of the low-end rolloff. Speaker-level inputs allow the subwoofer to be used with systems that do not have an LFE output or a line-level output.

An adjustable low-pass filter ranging from 90 Hz to 30 Hz gives users control over the subwoofer’s bandwidth for setups that lack bass management. A voltage input switch makes the subwoofer useable in countries with different electrical standards.

The cabinet is constructed from ¾” thick MDF all around except for the front baffle, which is a bit thicker. There is a piece of bracing midway in the cabinet that supports the ports. The feet are firm rubber rings that may help damp any mechanical vibrations from the enclosure to the floor.

The grille guides use metal prongs instead of cheap plastic tabs, so the grille should not break easily. The cabinet is generously lined with polyfill that helps damp enclosure resonance. Two 3” flared ports protrude far back into the cabinet.

Overall, the enclosure is a simple and sturdy design. More bracing might be welcome, but the thick paneling should compensate for that to an extent. I never felt any sidewall vibration or detected panel resonance in my time with the VTF-2 mk5.

One note about the port and included port plugs is it can be a nuisance to remove the plugs if they are pushed in too far; make sure there is an edge of the port plug available from which to grab them to pull them out. They do not have to be shoved in very far to create an air-tight seal.

HSU VTF-2 mk5 Driver:

Examining the driver, the first thing that jumps out about it is the beefy magnet in the motor; a stack of two ¾” iron pieces with a 6.25” diameter which form the bulk of the 16 lbs. weight of the driver. The basket is made from stamped steel of a decent thickness with a rib on the spokes for additional rigidity. A butyl foam surround holds a treated paper cone that meets a nomex spider at what appears to be a 2” diameter former.

A bumped-out back plate has a pole vent for thermal management. The VTF-2 mk5 driver uses shorting rings to reduce flux modulation. Altogether, this driver looks to wisely allocate the bulk of the cost to the motor.


◉ 12” driver, ported enclosure

◉ 350w continuous amplifier

◉ 30 Hz- 90 Hz crossover frequency range, by-passable

◉ 24dB/octave crossover slope

◉ 0°/180° phase switch

◉ L/R Unbalanced inputs

◉ L/R Speaker-level inputs

◉ 0.7-0.3 Q control

◉ 430-watt power outlet requirement

◉ 62 lbs.

◉ Enclosure Dimensions: 20.5”H x 15”W x 22”D

◉ Dimensions w/ feet, grille, amp: 21.5”H x 15”W x 24”D

◉ 7 years woofer warranty/ 2 years amplifier warranty

SVS PB 2000 Pro [Dimensions and Overview]

SVS PB 2000 Pro

Product Overview:

Breathtaking output and subterranean low frequency extension down to 16 Hz with astonishing detail and accuracy. PB-2000 Pro features all-new 12-inch high-excursion SVS driver and 550 watts RMS, 1,500+ watts peak power Sledge STA-550D amplifier with fully discrete MOSFET output. 

Harnessing the massive power while ensuring unerring control and room-energizing bass response is a 50 MHz Analog Devices Audio DSP. PB-2000 Pro also features the SVS subwoofer smartphone app for convenient control of volume, DSP functions, custom presets and more.

                                SVS PB 2000 Pro dimensions

SVS PB 2000 Pro models replace the most popular SVS subwoofers of all time, and since we don’t believe in anything less than a complete reimagination, they represent a massive performance upgrade over the original 2000 Series in every way.

 Jaw-dropping deep bass extension and massive output with stunning musicality that will delight both audiophiles and home theater fans. Reference subwoofer performance has never been available at this price range.

PB-2000 Pro features convenient control and custom presets via the SVS subwoofer DSP smartphone app for Apple, Android and Amazon devices . The SVS app is the most convenient way to control volume, access multiple DSP functions and program custom presets for music, movies, gaming, and more. 

An ideal solution for reference bass in audiophile music systems or home theater surround sound systems, the PB-2000 Pro sets all performance benchmarks in its price range(1099 USD Rate of today) while outperforming much larger subwoofers.

Technical Data:

A sophisticated 550 watts RMS, 1,500+ watts peak power Sledge STA-550D DSP amplifier, innovative new 12-inch high-excursion SVS driver, and optimized dual ported cabinet design take control of a space with amazingly deep and room-filling output without a hint of distortion, even at reference playback levels.

SVS PB 2000 Pro Dimensions

Placement & Mounting Options of SVS PB 2000 Pro:


Cabinet Material of SVS PB 2000 Pro:


Dimensions of SVS PB 2000 Pro:

17.3 x 20.9 x 23.6" / 440 x 532 x 600 mm (with Grille) 17.3 x 20.9 x 22.5" / 440 x 532 x 571 mm (without Grille)

Weight of SVS PB 2000 Pro:

64.8 lb / 29.4 kg (with Grille)

HSU Vs SVS Subwoofer[Comparison]

HSU VS SVS Subwoofer

HSU Vs SVS Subwoofer

HSU History & Overview

HSU Research was started in 1991 by Dr. Hsu. His goal was to make the best subwoofer in the world.It is clear that he made an impactful contribution to its existence.They made a massive impact on the market when they launched and produced some powerful speakers and subs. Their VTF series, for example, became very popular.

SVS History & Overview

SVS The original mission was to bring quality devices to the market that would challenge overpriced and underperforming “high-end” speakers and subwoofers.They wanted to make immersive sound accessible to all, not just audiophiles with the most expensive equipmentThe company’s growth is evident today, which speaks to its passion for making world-class subwoofers and audio accessories.Although SVS is more prominent, HSU Research and SVS are both well-known in the audio industry.

HSU Sound Quality

HSU has remained true to its original mission over the years – to make the best subwoofers. The subwoofers made by HSU continue to be a success. HSU subs make systems sound amazing in the bass area.HSU subs have superior bass quality than other subs on the market due to their dedication and specialization.The HSU ULS15, for example, is a powerful, rumbling beast.

The Ultra-Linear Sealed Subwoofer line (ULS) is one of the best performing subs on the market.HSU subwoofers can be used for music. The HSU VTF3 MKII is another powerful sub. This subwoofer delivers incredible bass.Another feature worth mentioning is the port flexibility offered by some HSU ported subs. This feature allows you to adjust the output strength or extension according to your preference. This is a great feature that will make your subs sound better.

SVS Sound Quality

The SVS subwoofers can play deep as true subwoofers. All SSV subs perform well in general. Even low-cost subs like the SVS Pb2000.HSU and SVS offer subs that sound great. HSU is a more powerful sub, while SUS plays deeper.

SVS Subwoofer specs


HSU Pricing

HSU is a small business, but it offers a lot of value for money.The output per dollar of the VTF-3 HP, or even VTF-15H – MK2 subs, will be much greater than that of most SVS subs.

SVS Pricing

SVS does not offer the same value for money as HSU. SVS does have great subs. However, they aren’t as affordable as HSU to provide the same performance.There are many comparable options available at lower prices than SVS. It’s not about brand names but quality. HSU offers excellent value, while SVS is more expensive but provides exceptional value. HSU actually provides the most value for money subs in the industry.

Consider, for instance, two similar subs, the VTF1MK3 and the SVS PB1000. They can be purchased for around $400. The SVS PB1000, on the other hand, will cost you about $500.


Both SVS and HSU offer drivers of exceptional quality. We will compare 12″ drivers.

HSU Drivers

HSU drivers are known for their high-quality sound and incredible bass. For example, take the HSU Research PF-12100LP.

This driver is a great choice and can produce some serious power. These drivers require a small enclosure. This is a great advantage. These drivers are great for a small car or home theater system.

SVS Drivers

SVS’s most talented drivers are the PB12 Ultra/2. These drivers are excellent and offer exceptional quality. You won’t experience the same low distortion as XBL2 technology.

"Subwoofer Design, Size, and Build Quality"

Subwoofers are essential because of their size, design, and build quality. Subs are often large, and therefore placement is necessary. Sound quality is also affected by design.

HSU Design, Size, and Build Quality

Simply put, HSU builds quality is solid. The subs are of the same quality as custom-built options.

This type of craftsmanship is built to last, so you won’t get the modern, sleek design many people love.

HSU subs are more vintage-looking than most. HSU subs are often large, but their drivers don’t have to be too big.

SVS Size, Design, and Build Quality

SVS subwoofers are sleek and can compete with modern subs in design quality. These subwoofers have excellent design and are made from high-quality materials.

"Room Fillings Bass"

A sub must be able to move and pressurize large volumes of air in order to fill an ample space with bass.

HSU Subs & Room Size

HSU has more giant subs than SVS. These subs are more powerful and can fill larger rooms better. HSU 15” subwoofers, for example, are great at filling large rooms.The HSU allows you to change the subwoofer’s response by plugging in one port, changing Q values, or changing the EQ value. To increase headroom, let’s say that you set EQ2 to have both ports open. The sub will be louder but not as deep.

SVS Subs and Room Size

SVS subwoofers provide incredible value for money. They can fill large rooms with bass if you need to apply pressure.

SVS is an excellent option if you are looking to reduce the number of subs in your room without having to experiment with too many placement options.

svs pb 3000 [Review and Audioholics]

SVS PB 3000

SVS Pb 3000 pro review Series Subwoofers Introduction:

Last fall, SVS released the 3000 series subwoofers which was said to bridge the performance and price gap between their 2000 and 4000 subwoofer lines.

This role had formerly been filled by the ‘12-Plus’ line before they were discontinued. SVS’s naming system of using numerations of one thousand helped simplify redesigned models of previous names, so the redesign of the ‘13-Ultra’ series became the 4000 series, and the ‘12-NSD’ series became the 2000 series

Those were redesigns that kept the same basic construction, so much of the cabinet design and driver design remained the same, which is not a bad thing since they had been proven to work very well. The 3000 series, on the other hand, is quite different and does not bear resemblance to the ‘12-Plus’ series that it takes over in SVS’s price/performance ladder.

It is a totally different design that uses an entirely different driver, cabinet, and amplifier. A couple of aspects remain the same, such as the use of variable port tuning and the 800 watt RMS power rating of the amp, but it really is an entirely different subwoofer.

3000 pair promotional.jpgThe 3000 subs do keep the same price point as the 12-Plus models. One trade-off that SVS has decided to make is to use higher-performing parts at the expense of the higher-end finish and build of the ‘12-Plus’ subs.

The PB12-Plus had a much heavier and thicker cabinet which could also have a gloss black finish. The PB-3000 has foregone these amenities in pursuit of higher performance; a car analogy might be that the PB-3000 is less of a luxury car and more of a sports car. The sealed SB-3000 can still be had in gloss black, but doubtlessly, it is a lot less expensive to have such a nice finish on a small sub as opposed to a large ported sub.svs pb 3000 weight 

            svs pb 3000 audioholics

In for review today, we have the PB-3000 and SB-3000 subwoofers. Having dealt with both the 2000 and 4000 series subs, we will look at how well the 3000s bridge the gap between those two lines.


The price range that these subs occupy, $1,000 to $1,400, is fiercely competitive in the subwoofer market, so SVS was probably right to bring out a whole new design rather than redo the 12-Plus line. Given the competition, they would not have entered products in this price range lightly,

The 3000 subs arrived in heavy-duty cardboard boxes. There are instructions on the outside that guide the unpacking process, and if these instructions are followed, it does make the unpacking process much easier and simpler.

Both subs were packed with heavy-duty polyethylene foam blocks sandwiching the top and bottom. This does protect them against shock and hard knocks, and, in fact, the box for the SB-3000 that I received showed evidence of having endured some kind of significant impact yet the sub was in perfect condition.

The subs were also wrapped in a plastic bag to protect from moisture, and a soft cotton bag underneath that to protect them from scuffs during unpacking. As usual, SVS’s packing is top-notch, which is not surprising from a company with so much experience having shipped many thousands of subwoofers all over the world. svs pb 3000 weight 

The appearances of the PB-3000 and SB-3000 are two very different stories. Even though they use the same driver, the PB-3000 is large and muscular looking, while the SB-3000 is much more elegant and refined.

While this is mostly due to the fact that the PB-3000 is over twice as large as the PB3000 2.jpgSB-3000,  another major contributing factor to this effect is that the SB-3000 came in a Piano Gloss Black finish whereas the PB-3000 comes in a Black Ash finish. The PB-3000 only comes in Black Ash.

The SB-3000 can be had in Black Ash but can be had in Piano Gloss Black for a $100 surcharge. SVS’s gloss black finish is a deep high-gloss that is quite nice and not plasticy, so it is well worth the premium cost in my opinion. 


Surprising dynamic range

Flat response from 20 Hz to 200 Hz

Bulletproof protection from overdriving damage

Gloss Black SB-3000 looks very nice

Subs are not super-heavy

SVS Pb 3000 pro review app gives user a lot of control


PB-3000 could use more finish options.

svs pb 3000 Subwoofer Specs:

Subwoofer TypeActive
Enclosure TypeBass-Reflex
Amplifier Power Rating800 W RMS
2500 W Peak
Drivers1 x 13" / 33 cm (Front-Firing)
Frequency Response16 to 260 Hz
Amplifier ClassClass-D
Connectivity1 x Stereo RCA Input
1 x Stereo RCA Output
1 x USB Type-A
1 x 1/8" / 3.5 mm Input (12 V Trigger)
Cabinet MaterialMDF
svs pb 3000 Dimensions18.3 x 21.9 x 26" / 46.5 x 55.6 x 66 cm
(with Grille)
svs pb 3000 Weight82.2 lb / 37.3 kg

Packaging Info:

Package Weight95.5 lb
Box Dimensions (LxWxH)31.5 x 27 x 23.75"