How to keep the alloy saw blade sharp

1. Corresponding model and equipment

Alloy saw blades have strict requirements. Different models correspond to different equipment, and they cannot be matched at will. For example, saw blades that cut metal are used to saw wood. This is a very common mistake. Some laymen think that cutting metal You can cut wood faster and sharper! If the saw blade used on the metal circular saw is used to saw wood, the result is jamming and chipping, the consumption of the saw blade is too large, and the cost is too high .Get more news about Band Saw Blade Grinder Machine,you can vist our website!

2. Grasp the time to replace the saw blade

Carbide saw blades are consumables and have their service life. Many companies think that when cutting and processing, if the service life is not reached, they will not be replaced, and they will not be used until they are used! Indeed, this is what all companies are doing One thing, I think it is normal and reasonable, but it is a very lazy practice;

If the life of a saw blade is to cut 40 squares, it should be replaced when it cuts to 20 squares, so after a break, at least 30 squares can be cut, people will be more energetic after a break, and the same is true for products!

3. Association with its device

The quality of the metal circular saw will also affect the quality of the saw blade. The coordination and compatibility between them are very important. No matter how good a saw blade is, if it is placed on a device of very poor quality, its efficacy will be discounted by at least half. above.

The equipment should not cut out-of-range materials, which will not only affect the performance and stability of the equipment, but the biggest damage is the carbide saw blade. Similarly, the equipment should have its reasonable rest section, which can also drive the saw blade to adjust its breath. time.

Foshan Li Dexin Machinery Manufacturing Co., Ltd. is a professional saw blade grinding machine, alloy saw blade grinding machine, automatic saw blade grinding machine, CNC saw blade grinding machine, saw blade grinding machine, alloy saw blade grinding Saw blade grinding machine manufacturers such as machine, multi-blade saw grinding machine, etc.

Application of SLS 3D Printing Technology in Low-voltage Electrical Appliances

Ø Background:

Electrification and automation have developed rapidly in China. Molded-case circuit breakers (MCCBs) have been widely used for their good overload and short circuit protection functions. MCCBs, as the most basic protective appliances, features extensive application, a wide range of varieties and compact and complicated structure. In the past, designers and producers of electrical appliances often found it necessary to manufacture prototype parts through silicone coating processing and CNC processing, and to carry out verification and testing in the design and development stage of new products, which would require a long processing cycle and high costs, and become a major problem if dozens or hundreds of new products needed to be developed every year. Presented below is a case with an end customer of TPM3D.Get more news about Selective Laser Sintering Printer Exporter,you can vist our website!

A type of molded-case circuit breaker

Ø Customer profile:

The customer is a world-renowned smart energy solution provider, and its products include power distributors, terminal appliances, motor control and protective appliances, industrial automation, etc. With annual sales exceeding RMB 80 billion, the company operates in more than 140 countries and regions. This customer combines TPM3D P360 laser sintering system with PPS for its R&D and trial production of various low-voltage electrical appliances.

TPM3D P360 Laser Sintering System +PPS

Ø Product development:

The customer develops and produces more than 10,000 new pieces of electrical products every year. At present, its main products printed with TPM3D P360 include cases for molded-case circuit breakers and other structural parts.

Other structural parts

After the sample is printed, the customer will conduct assembly verification and functional tests. The accuracy of the assembly verification is required to reach ±0.2mm. The functional tests mainly include: strength test, long delay test, insulation test, etc. The material adopted is 30% glass bead reinforced nylon 12 (Precimid1172Pro GF30) of TMP3D, which features excellent strength and impact resistance. According to the customer, the materials can meet test requirements in terms of mechanical properties and insulation. In addition, the thermal deformation temperature of the material reaches as high as 184.4℃, and the printed cases can be tested without being deformed in a thermostat at 80℃ for 4 hours, which meets the requirements of the long delay test. On the whole, cases of molded-case circuit breakers printed with SLS technology are on a par with traditional injection molded parts.

Ø Environmentally friendly:

When purchasing the P360 laser sintering system, the customer also configured a Parts & Powder Processing Station(PPS),which launched in 2018 by TPM3D, first one in Asia, integrate parts cleaning, powder recycling,mixing,feeding and powder collecting,solved the problems such as time-wasting, pollution and safety when labor operation. PPS has passed the national standard for dust explosion-proof zone 22 and the international CE certification and earned high recognition for its better performance in ensuring user safety.

Ø Cost reduction and efficiency improvement:

Before introduced the SLS 3D printing system, the customer adopted CNC machining or outsourced silicone coating machining, which took at least 5-6 days to obtain the test parts. After the P360 laser sintering system was put into production, samples could be obtained and tested after only 48 hours, saving time by more than 60%. In the past, outsourced case processing cost about RMB 4,000/set. With SLS 3D printing technology, the cost can be controlled under RMB 700/set, a reduction by more than 80%. With a high utilization rate, currently the customer's equipment can print 2-3 full chamber per week on average. In addition, according to the customer, it can save about RMB 700,000 per year, thus better reducing costs and improving efficiency.

8 Advantages and 2 Disadvantages of low E Glass

It is thought that between 10-50% of a given home’s energy loss occurs through its windows and doors, and that 90% of the energy lost through windows is lost through the glass itself. This is an undeniably hefty chunk of energy to be losing through such a small area of your house’s architecture. In 1975, the first low-emissivity glazing solution was brought to market in a bid to change this.Get more news about Low-e Glass Manufacturers,you can vist our website!

The emissivity of a surface refers to the amount of energy it emits at specific wavelengths, with thermal energy usually being the focus. A material is given a numerical thermal emissivity value of between 0 and 1, with a perfect reflector having an emissivity of 0 and the perfect absorber having an emissivity of 1.

Metals, such as Silver and Aluminium, have thermal emissivities of <0.05, while standard clear glass comes in at around 0.9, making it one of the higher emissivity materials out there. Breaking this down, standard glass with its thermal emissivity of 0.9, allows 90% of thermal energy to pass through it, reflecting the remaining 10%. Clearly then, window glass needs some help in reflecting heat back into the home. This is where low E glass comes in. Low E glass is essentially standard clear glass with a microscopic, transparent coating on its surface that is better at reflecting heat than the glass itself, creating a composition that has a lower emissivity than standard glass. Glass with a low E coating therefore keeps your home warmer by reflecting a higher proportion of the heat back into your home, and can keep you cooler by reflecting solar thermal energy from outside. This coating can either be “soft-coat” – applied to glass off-line in a vacuum chamber at room temperature and sealed within an IGU, or “hard-coat” – which is fused to the surface of the glass while it’s being produced. For the purposes of this piece, we’ll be focusing on soft-coat, as it is of lower-emissivity, and more commonly used in the UK market.

Construction Defects Spotlight: Reviewing Causes of Curtain Wall Failures

In the world of construction defects, curtain wall problems are not uncommon and can lead to millions of dollars in damage to property and structures.Get more news about Curtain Wall Manufacturers,you can vist our website!

In layman’s terms, a curtain wall is the glass and metal “protective skin” that shields modern buildings from the elements. Curtain walls are usually not load bearing, but do play a critical role in protecting a building’s integrity. Because they are subjected to changing weather conditions, expansion and contraction, pressure and thermal gradients, and building movement, curtain wall leakage and more serious failures are not uncommon.

The term “curtain wall” is used to describe a wide range of building envelope systems. From the shining glass skin of many modern skyscrapers, to the glazed-façades of buildings found in most office parks, curtain wall systems are now ubiquitous and have rapidly evolved in recent decades as architects and developers strive to meet a wide range of competing goals, from enhancing aesthetic appeal to increasing energy efficiency and maximizing the usable area within a structure.

Façade engineers and fenestration experts may be needed to analyze the specific root causes associated with curtain-wall-related damage claims. However, the following categories summarize much of what can go wrong:
Review, analyze and organize all available documentation related to the curtain wall system that has sustained damage (architectural drawings, manufacturers information, installation guidelines and related info)

Cold extrusion forming technology

Cold extrusion is an important part of precision plastic volume forming technology. Cold extrusion refers to the cold metal blank into the mold cavity, under strong pressure and velocity, forcing the metal extrusion from the cavity, so as to obtain the required shape and size of the extrusion and has certain mechanical properties. It is clear that the cold extrusion process is to rely on the mold to control the metal flow, by a large number of metal volume transfer to the forming part of the.Get more news about Precision Cold Extrusion,you can vist our website!

Cold extrusion technology is a kind of high precision, high efficiency, high quality and low cost advanced production technology, widely used in small and medium scale production of forgings. Compared with hot forging, warm forging process, the material can be 50% ~ 30%, energy saving 40% ~ 80% and can improve the quality of forgings, improve the working environment.

At present, the cold extrusion technology has been widely used in fasteners, machinery, instruments, electrical appliances, light industry, aerospace, marine, military and other industries, has become one of the important means of processing technology indispensable metal plastic bulk forming. After World War II, the cold extrusion technology has been widely used in the development of foreign automobile, motorcycle, household appliances and other industries in developed countries, and the emergence of new extrusion materials, mold steel and large tonnage presses will expand its development space. Japan in 80s claimed that its car production in the forging process of the production of parts, there are 30% ~ 40% is the production of cold extrusion process. With the continuous improvement of the technical requirements of the product of the progress of science and technology and automobile, motorcycle, household appliances and other industries, the production of cold extrusion technology has gradually become the development direction of small and medium-sized forging production. Compared with other processing technology, cold extrusion has the following advantages:

1) saving raw materials. Cold extrusion is the use of plastic deformation of metal to make the desired shape of the parts, which can greatly reduce the cutting process, improve the utilization of materials. The material utilization ratio of cold extrusion can reach more than 80%.

2) improve labor productivity. Cold extrusion process instead of machining parts, the productivity can be increased several times, several times, and even hundreds of times.

3) the ideal surface roughness and dimensional accuracy can be obtained. The precision of parts can reach IT7 ~ IT8, the surface roughness can reach R0.2 ~ R0.6. Therefore, the parts used in cold extrusion processing is generally very little machining, only in the requirements of special high precision grinding.

4) improve the mechanical properties of parts. After cold extrusion, the metal cold work hardening, as well as the formation of a reasonable distribution of fiber lines within the parts, so that the strength of parts is much higher than the strength of raw materials. In addition, the reasonable cold extrusion technology can make the surface of the parts to form compressive stress and improve fatigue strength. Therefore, some of the original parts heat treatment can save heat treatment process for cold extrusion process, some parts of the original need made of high strength steel, cold extrusion process after available low strength steel for use.

5) can be processed in the shape of complex, difficult to machining parts. Such as profiled, complex inner, and the surface of the invisible tank etc..

6) reduce the cost of parts. The cold extrusion technology has the advantages of saving raw materials, improving the productivity, reducing the amount of machining of parts, and the poor quality materials, which can be used to reduce the cost of parts.

Things To Consider When Flooring For Sports Fields

The quality of the sports activities highly depends on the sports flooring systems. These systems have a quite crucial influence on the athlete’s health. The interaction between sports flooring and athlete’s shoes is the most significant factor in the possible feet and leg injuries. These accidents might cause some serious problems on muscles, tendons, ligaments, bones, and cartilages. In light of these unpleasant possibilities, the elasticity of the sports flooring gains huge importance for the athlete’s health. Especially the stretch and friction properties of the sports flooring play quite an essential role to reduce highly possible injuries. If sports court flooring has a good level in terms of elasticity, this feature and low friction level significantly reduce burdens on the bones and joints. While the softer floor might have protective properties against the overdose usage circumstances, the high friction resistance of the sports court flooring might increase the potential injury. On the sports court flooring for these activities, wood, PVC, acrylic, rubber, grass carpet, and so on materials might be preferred using. The first criterion determining which material to use is which sports art is going to be performed on the floor and the second criterion is the location of the sports field as indoor and outdoor areas.Get more news about sport floor paint for sale,you can vist our website!

While in general indoor sports court flooring is covered with wood due to its flexible structure, we might encounter this kind of flooring in dance halls. Maple and oak are among the most common preferred wood materials for sports court flooring. This kind of flooring system is also quite convenient for basketball, volleyball, handball courts, and gymnasiums. On the other hand, PVC sport court flooring is one of the excellent materials to cover indoor sports halls. This type of flooring looks aesthetic and homogeneous and it is a budget-friendly material due to its different color and pattern options and thicknesses in addition to its ease of application. PVC offers a chance to gain a really solid floor with the help of the pure PVC coating wear layer. Being resistant to scratches and hygienic, reducing sound transmission, having shock absorption, low maintenance, and cleaning costs are the most important features that make this type of sports court flooring attractive. It is highly preferred coverage of aerobics, football, gymnastics, yoga halls, basketball, handball, and volleyball courts.

How Many Sports Flooring Systems Are There?
There are many types of flooring systems. The first one is the tartan floor which is extremely preferred due to its high flexibility. Moreover, this flooring system has many attractive features such as impact absorbency, UV resistance, non-deformable structure in thermal differences, hygienic and environmentally friendly, easy to clean, and many others. In general, this sports court flooring can be seen in indoor and outdoor tennis courts, basketball and volleyball courts, track and field tracks, running, walking, and cycling tracks. And the last one is the grass carpet. The system, which consists of polypropylene yarn, offers a very durable floor for football, tennis, and other activities. Due to its high water permeability, it does not lose its performance in areas with heavy rainfall. Thanks to its special lubricating surface, it offers athletes the highest level of performance based on jumping and movement. The athlete-friendly sport court flooring system prevents properties from burning and scratching that may occur due to the lack of freedom of movement. It is preferred in the usage of football fields and tennis courts as you all can guess.
In the flooring of both indoor and outdoor sports fields might be a good idea to consider acrylic sports flooring material. This kind of sports court flooring system can be applied on asphalt or concrete ground in 3 mm thickness. Acrylic flooring, which is highly resistant to climatic conditions and thermal changes, looks quite aesthetic and hygienic. If proper maintenance care is applied regularly, it is not going to lose its proper conditions for many years. Because of this budget-friendly aspect, it can be used in many different areas such as basketball, handball, volleyball, bowling, bocce and multi-purpose sports fields, tennis courts, athletics tracks, and so on. Another type of flooring system on the sports fields is polyurethane coating. It is quite effective and protective and so much easier to clean when we compare it with other options. This sports court flooring is applied on concrete surfaces as a cast-in-place and it does not allow the creation of joints. Because of this feature, you cannot see any level difference at the edges of the sports courts. This kind of sports court flooring system allows you to experience a natural movement type for the ball, especially in court games played with the ball. Thanks to its matte paint, it prevents light reflections that might be so distracted for players and athletes. It is not influenced by the pressure of the heavy objects on the floor. As it is coated with polyurethane-based paint, it is extremely resistant paint to scratching. If proper maintenance care is applied regularly, you are not going to experience any loss on its properties for many years.

PCI-E Connectors Market Development

The latest research report on the PCI-E Connectors market. To comprehend a market holistically, a variety of factors must be evaluated, including demographics, business cycles, and microeconomic requirements that pertain precisely to the market under study. In addition, the PCI-E Connectors market study demonstrates a detailed examination of the business state, which represents creative ways for company growth, financial factors such as production value, key regions, and growth rate.Get more news about cjt connector,you can vist our website!

the study on the PCI-E Connectors market offers comprehensive insights into historical patterns and current conditions to predict the growth curve of the industry for the period 2022-2028. Additionally, it includes growth opportunities that will affect the profitability of the market in the forthcoming years.
The study also discusses the obstacles and challenges of players in the business sphere, along with recommendations for reducing their detrimental effects. Through the use of analytical data, it provides insights into submarket performance and useful guidance to assist organizations in formulating successful expansion strategies.
Study objectives
To provide detailed analysis of the market structure along with forecast of the various segments and sub-segments of the global PCI-E Connectors market

To provide insights about factors influencing and affecting the market growth

To provide historical and forecast revenue of the market segments and sub-segments with respect to countries

To provide historical and forecast revenue of the market segments based on product, application, procedures, end user, and regions for the global PCI-E Connectors market.

To provide strategic profiling of key players in the market, and comprehensively analyzing their market share, core competencies, and drawing a competitive landscape for the market

China Automotive Magnesium Alloy Die Casting Industry Report 2021

Under the general trend of automobile lightweight, the CAGR of magnesium alloy market demand reached 13.2%.Get more news about magnesium alloy casting manufacturers,you can vist our website!

The vast majority of automotive magnesium alloy parts are die casting parts, which are mainly used in housings and brackets. Magnesium alloy is a good substitute for steel and aluminum alloy, and can reduce the product weight by 25%-75%. However, the current application ratio of magnesium alloy in automobiles is much lower than that of aluminum alloy.

Magnesium alloy facilitates lightweight vehicles

Given energy saving, environmental protection and performance, lightweight vehicles have become one of the important directions for the development of the global automotive industry. In 2020, China released Energy-saving and New Energy Vehicle Technology Roadmap 2.0, putting forward lightweight requirements for all types of vehicles. In addition, major automakers have proposed goals of promoting the development of lightweight vehicles.

At present, lightweight vehicle technology is mainly divided into three types: lightweight material technology, lightweight advanced process technology, and lightweight structure optimization technology. Lightweight materials are the key to lightweight vehicles.

Magnesium alloy features low density, high strength, good heat dissipation, strong vibration resistance, noise reduction, excellent die casting performance, and outstanding cutting performance, as an ideal lightweight material. Under the trend of lightweight vehicles, the market demand for magnesium alloy will grow rapidly.

In 2015, a single car in China only used about 1.5kg of magnesium, which was far lower than the level in Europe, America, Japan and other regions. However, with the rapid development of new energy vehicles and the acceleration of the lightweight vehicle process, the amount of magnesium used in a single vehicle in China has grown rapidly, and it is estimated to reach 15kg in 2020.

As per Energy-saving and New Energy Vehicle Technology Roadmap 2.0, a single car in China will use 45kg of magnesium alloy, which will account for 4% of the total vehicle weight by 2030 when the Chinese automobile market will demand 1.31 million tons of magnesium alloy die casting parts with a CAGR of 13.2% in 2020-2030.

Magnesium alloy boosts lightweight new energy vehicles

For every 10% reduction in the weight of new energy vehicles, the average cruising range can increase by 5%-8%. Therefore, the demand for lightweight new energy vehicles is urgent. The density of magnesium alloy is 2/3 that of aluminum and 1/4 that of steel, so it is much lighter than the latter two, which means that magnesium alloy is the best choice for lightweight new energy vehicles.

New energy vehicle battery packs account for more than 20% of the vehicle weight, thus lightweight new energy vehicles partly hinge on lightweight battery packs.

Lightweight battery packs can make outer casings, bottom trays, and inner end/side panels lighter. For example, Tesla MODEL S mainly uses aluminum alloy for the battery pack shell which weighs up to 125 kg; if it uses magnesium alloy, the weight will be reduced by about 60 kg or nearly 50%.

At present, Wanfeng Meridian, Qianhe Magnesium, RSM Group, Eontec, Ka Shui Group, etc. have made layout in the field of magnesium alloy casting for battery pack shells of new energy vehicles.

As the world's leading supplier of new energy vehicle batteries, CATL has also deployed magnesium alloy die casting for battery packs. In November 2020, CATL, Sanxiang Advanced Materials, Vansun Group, and Zhuhai Hengqin Yinmei Technology jointly established Ningde Wenda Magnesium-Aluminum Technology Co., Ltd. to build a magnesium-aluminum alloy project with a total investment of RMB800 million. The products include die casting structural parts for battery casings.

200W 30000lm UFO LED Highbay Lamp High Quality High Quality High Power Flat

With high-quality 75 watt led flood light, Built in driver LED High bay, linear led wall light 4FT, advanced technical equipment and 'people-oriented, efficient and symmetrical' management concept, our company has become a bright star in the industry. We continue to expand the scale of the industry in the process of promoting the development of the region. We follow the management concept of standardization with everything based on evidence.Get more news about Die-casting Ufo Bulb,you can vist our website!

Mason has been focusing on LED field for more than 14 years. Based on its own advantages in the field of LED light source device packaging technology, quality and scale. Mason LED high-bay lights are the perfect replacements for traditional metal-halide HID lights.100W led high bay lights is the perfect solution for a wide variety of applications and mounting heights. It's competitive pricing and multiple lumen packages make it an ideal choice as a one for one replacement of conventional fluorescent and metal halide high bay systems. Mason High Bay fixtures are simple and fast to install. Built with quality to last and performance to get the job done, 100 watt led high bay light is renowned for energy efficiency, light uniformity, and long life, These lights are the perfect commercial or industrial solution for warehouses, supermarkets, retail stores, gyms, garages, general task areas, and many other applications. The die-casting heat sink has quite efficiency heat dissipation effect, and the surface treatment adopts a powder spraying process, which has strong texture and corrosion resistance. Mason has the United States UL and Germany TUV authorized witness laboratory accreditation. Mason LED products were identified successively as Guangdong province famous brand products and were bestowed with national energy-saving product certificate.

Few vehicles earn high marks in IIHS’s new nighttime pedestrian AEB tests

Only four of 23 vehicles examined aced the first nighttime test of pedestrian automatic emergency braking (PAEB) systems conducted by the Insurance Institute for Highway Safety (IIHS) while more than half earned a basic score or no credit.Get more news about best vehicle test lane,you can vist our website!

The findings underscore IIHS’s previous concerns about the performance of PAEB systems in low-light conditions and may lead to consumer and regulatory pressure to improve the systems’ performance.

“As we expected, most of these pedestrian AEB systems don’t work very well in the dark,” IIHS President David Harkey said in a statement. “But it’s clear automakers can rise to this new challenge, as Ford, Nissan and Toyota each earn superior ratings for some models.”
IIHS and the Highway Loss Data Institute (HLDI) in March petitioned federal regulators to require through rulemaking that passenger vehicles be equipped with PAEB systems that work well in the dark.

The National Highway Traffic Safety Administration (NHTSA) has already been directed by the Department of Transportation to initiate rulemaking on a requirement that new passenger vehicles be equipped with PAEB by 2024. IIHS and HLDI are going a step beyond, petitioning NHTSA to require PAEB that is effective in all light conditions.

IIHS-HLDA noted that NHTSA has announced its intent to add PAEB to the advanced driver assistance system (ADAS) technologies recommended under the agency’s New Car Assessment Program (NCAP). “While IIHS and HLDI support adding nighttime testing to NCAP, we believe good performance in the dark should be mandated and not merely recommended through NCAP,” the March letter states.

IIHS developed its nighttime test in response to earlier findings that, while PAEB reduces pedestrian crash risk by an estimated 32-33% in daylight, it does not reduce pedestrian crash risk in the dark. The ratings released Tuesday were the first awarded under that new test.Joe Young, director of media relations for IIHS, previously told Repairer Driven News that while the institute occasionally files petitions for rulemaking, it has found that its consumer ratings programs are more efficient at driving change.

Those programs “have helped drive dramatic improvements in occupant protection in a variety of crash configurations and crash avoidance technologies,” Young said.

IIHS introduced the daytime vehicle-to-pedestrian evaluation in 2019 and made an advanced or superior rating a requirement for a Top Safety Pick or Top Safety Pick+ award in 2020. Today, the feature is available on nearly nine out of 10 new models that IIHS evaluates, and half of the systems tested earn superior ratings in daylight conditions.

best-subwoofers-home-theater-speakers-2021-22

Tired of putting up with anemic bass while you miss out on the visceral excitement that comes with owning a bad-ass subwoofer? Or maybe it’s time to replace a lowly soundbar (or, heaven forbid, the speakers built into your TV) with a full-on home theater speaker system capable of delivering a no-holds-barred surround-sound experience. If either of these statements ring true, you’re in the right place. In the following six pages we present capsule reviews of our Top Picks in subwoofers and home theater speaker systems for all of 2021 and so far in 2022. We’ve even thrown in S&V-approved soundbars built to deliver a surround-sound experience and stereo speakers around which you can build a full-fledged surround system. In all, there are more than two dozen recommendations to consider. We’ve checked all pricing and noted instances where there has been a price increase since the original review, which was the case with only about a third of the products.Get more news about fashion subwoofer speaker,you can vist our website!
I don’t know about you, but my first thought was “too good to be true” when I saw how much OSD is asking for its Nero TubeBass 10 subwoofer. Turns out, the little canister is a brute that offers ridiculous value for $179, while trading the usual black-box form factor for a 19 x 13-inch cylinder that packs a down-firing 10-inch driver and 400-watt amplifier. This is a subwoofer that won’t dominate the room. But given the low price, it’s also a no-frills design that (unavoidably) lacks wireless connectivity, app control, EQ presets, and DSP/automated room correction. Instead, you get the old-school basics: a volume control, a rotary dial for selecting a crossover point between 30 and 120 Hz, a phase switch, line-level RCA and LFE inputs, and a black-mesh-fabric-covered tube with rubber feet that provide stability and clearance for that down-firing woofer.
For his evaluation, Al Griffin set up the TubeBass 10 in the corner of his 12 x 16-foot home theater and hitched it to a Rotel RSP-1576MKII surround processor feeding Elac Uni-Fi 2.0 speakers and set the Rotel’s low-pass crossover to 100 Hz. Then he ran some test tones and confirmed usable output down to 30Hz before firing up some music. Comparing Bill Frisell's "Blues Dream" from the CD With Dave Holland and Elvin Jones, Griffin was surprised with “how much bass OSD Audio's cylinder sub was actually generating in my room” and marveled with how tight and impactful the bass guitar and kick drum sounded on Roxy Music's "The Space Between" from Avalon on multichannel SACD. The little subwoofer also did an impressive job with movies, adding fullness and punch (sans infrasonic rumbling) to the mayhem in Pacific Rim without audible distortion. What more can you ask from a sub that costs 200 bucks? (Editor’s note: Since the original review, OSD has increased the price of the TubeBass 10 from $179 to $200.)

SVS has built its reputation around delivering impressive performance at budget-friendly prices. To make a good deal more enticing, the company has included its best-in-class app with the super-compact SB-1000 sealed sub and its ported big brother, the PB-1000 Pro. The app makes it super easy to set up and fine-tune the performance of either sub, each of which mates a 12-inch woofer with a 325-watt RMS Class D amplifier. Instead of having to get down on your knees and crawl around to the back of the subwoofer, you can simply grab your phone (and a sound meter) and use the app to adjust a surprising range of parameters from your easy chair.
In addition to controlling volume and setting crossover points or correcting polarity, the app lets you adjust phase, select room gain compensation (to tame bloated bass in smaller rooms) and puts a highly flexible parametric equalizer with frequency and bandwidth (Q) controls at your fingertips. The app also provides three presets and a port tuning mode on the PB-1000 Pro with customized "Standard" and "Sealed" frequency response curves for maximizing low-frequency extension or output.

Switching out his regular SVS SB-3000 subwoofer (our 2019 Top Pick of the Year in subwoofers) for the new models in a 1,200 cubic-foot room, S&V’s resident bass guru David Vaughn was impressed by what he heard and felt while watching The Haunting, which features a reference-quality Dolby TrueHD 5.1 soundtrack known for its deep bass. In the scene where protagonist Nell flees for her life while being attacked by the evil spirit, the SB-1000 held its own but the “PB-1000's ability to go a bit deeper and play louder definitely enhanced the experience with bass that displayed more prominence and heft.” Conversely, while both subs also performed well with music, the SB-1000 Pro had the edge, rendering bass in the tight, punchy manner you’d expect from a sealed design. If you’re looking for good bass for a reasonable price, you really can’t go wrong with either of these subwoofers. (Editor’s note: Since the original review, SVS has increased the price of the SB-1000 from $500 to $600 and the PB-1000 from $600 to $800, both with a black ash finish.)