To solve the resonance noise the best opcom op com car audio tuning method

Bass on the body  opcom op com  except for the ear, also can let the body and produce a kind of resonance. No matter is the head, bones or skin, or even oral. Teeth. Each part of body will be due to low frequency and produce a kind of resonance. This resonance makes people feel very comfortable, this resonance to release the pressure ...
Do not remember how many times have talked about a topic, but still have quite partial person in common with my contact or to ask the " word " actually has the congenital golden ears is certainly feel just like a fish in water, but mainly to long-term practice listening, today according to Beijing digital industry requirements again, over five years ago in the magazine talked about " old ", a person for more than ten years experience summarized as follows for your reference ..1. ( but with an equalizer, the equalizer to about 75% of the volume of the volume .)
2 setting amp installation completed first will host . Amplifier volume are kept small to " 0 ". The amplifier frequency point and other functions:
A. sound field amplifier crossover switch set in high ( HIGH PASS or HP ):
Crossover switch between 80HZ-120HZ opcom op com ( usually first mention 90HZ as reference )
B. sound field amplifier is set in high ( HIGH PASS or HP ): ( if no sound field configuration is omitted )
Crossover switch is set at 200HZ - 400HZ
C. subwoofer amplifier frequency divider switches are set in the low pass ( LOWPASS or LP )
Crossover switch in 80HZ - 120HZ ( super bass amplifier as the front amplifier, crossover to a combination of consistent, if the offensive power is more than 90HZ, subwoofer amplifier must be less than 90HZ. Cannot have a 90HZ following 120HZ above, debugging, or back to the omission of certain audio voice, causing poor audio link )
D. All amplifier bass frequency enhancer ( EQ BASS ) return to zero or close ( OFF )
3 complete the above a predetermined action, into a vocal consisting mainly of disc to play, then the host volume from opcom op com zero to 80% - 90% ( e.g. ALPINE total volume for 35, 90% for 31, other brand is so calculated, over and above the sound volume, the host will probably output distortion signal to the amplifier input signal, causing excessive damage the horn or subwoofer monomer! )
4 now, don't back or front super bass loudspeaker has no sound!
(for some equipment collocation will produce bigger smaller gain effect, so it can be in any one of the power amplifier installation, even if the volume is zero but the host volume to 80% - 90% things will produce ranging from the size of the volume )
First put forward the volume switch power amplifier is increased gradually, until the front horn sound distortion sound so far, then the amplifier volume knob back view about half a clock dial ( such as the hour hand of the clock dial ), more action is to let up debugging main speakers sound field, in the main machine of the largest volume of output signal, also let power amplifier in the absence of distortion to produce lexia 3 diagnostic tool the largest output power, also let the front horn without distortion condition produced the greatest volume without cracking voice, rendering, and even burn the voice coil and malfunctions!
The volume of sound field debugging set properly, will host transferred back to normal listening volume, proceed to the next step and subwoofer convergence adjustment.
Super bass amplifier volume switch are increased gradually, until with the sound field sound the appropriate combination of make super bass playing in the instrument panel or dashboard of Frontier! If not always make super bass playing on the front panel, try super bass loudspeaker line inversion ( positive and negative line upside down ), perhaps can be improved when. When ultra low volume is too small can not reach the instrument board, too large to advancement in the trunk ring!
Finally, if there is a sound amplifier set, the sound field amplifier volume increase to recoil passengers can clearly hear, while seated passengers hear back sound so far, in order not to sound too big to influence of backcourt attack sound quality and sound field effect ( remember! In a formal tournament before sitting judge if heard sound field sound will be the soundstage depth project points)

Large dynamic DJ enthusiasts new darling: United States the MTX RT8PT MB Star C3 active subwoofer

According to incomplete statistics, MB Star C3 in the modified car stereo upgrade the original car's bass system number is up. Because the original car audio system is influenced by the power of the original car amplifier, bass effect is relatively poor, and can not express a whole atmosphere of the music, that require dynamic, or DJ enthusiasts, the original car stereo subwoofer system the upgrade is imperative for owners who started his car stereo, but due to not understanding, so the sound quality, although there will be requirements, but not too high. So many owners very happy just entered a modification of the road, you will start to increase the subwoofer.

Subwoofer be divided into the gun two kinds of active subwoofer and passive bass active subwoofer its own built-in amplifier subwoofer owners use when you do not need additional power amplifier; compared to the passive subwoofer shape and power of the active subwoofer choice can be more MB Star C3 flexible, the effect naturally more ideal. To tell you about today is the American audiophile-grade car audio, MTX RT8PT active bass gun, first take a look at how it looks:
Large dynamic DJ enthusiasts new darling: United States the MTX RT8PT active subwoofer

It is composed by an 8-inch subwoofer, a tunnel-style cabinet. The appearance of the box by a gray blanket wrapped carpet-wrapped box can be sustained from damage, and gray and all within the original car color matched, the back of the stereo to install a small amplifier, and a high-output guide tube.
Efficiency of the design of this high-quality, high-performance, high-output, very popular among consumers, it is compact and bass MB Star C3  explosive strong enough, can achieve the effect of a ten-inch bass speaker and amplifier and cabinet match and dive deep sound reproduction and high, turns out to be small and extraordinary. The small size also means that more easily placed, occupy less space. The most convenient is it to replace the original car audio enthusiasts host two input methods for high and low to bring the Gospel. Amplifier remote bass line with consumers while driving can while adjusting the size of the subwoofer, humane design is sufficient to prove the the MTX product to people- lexia 3 pp2000 centered design philosophy.

Foreign modified GT-R record 8.97 seconds 0-400m acceleration record

A car carrying the candy apple Switzer Digimaster 3 Performance R1KX red with modified Nissan GT-R recently in North America Ohio's Summit Motorsports Park zero four track record of 8.97 seconds ( 262 kilometers per hour ) amazing records.

Car nicknamed "the Red Katana (red samurai sword) 8 seconds 2004 monster is the Switzer Performance tuner a challenge Digimaster 3 2004 R1KX accelerated track cars. This customized R1KX cockpit equipped with a premium leather, alcantara deerskin, and carbon fiber interior. Above with plus top audio and video systems, car R1KX about 136 kg or heavier than the standard version of the GT-R, but it has 1500 horsepower output (which is more than 2 times the original GT-R), so the performance 's performance really do not need to worry about.

The Switzer Performance tuner expressed exact data Digimaster 3 of the modified car R1KX GT-R with more pictures will be formally announced in the coming days.

 

The appearance more coordination iND modified import BMW 328i

The iND modification companies from the United States has recently launched a BMW 328i modification cases. elm327 Appearance, iND car installation surrounded by a set of 3D Design Suite, black grille and other details of the kit iND own development products.

In addition surrounded kit, the car also installed a set of BBS CH-R 19-inch wheels, front and rear dimensions are: former 8.5J × 19 ET32, after 9.5J x 19 ET35. Associated with the movement of Hankook Tire. And by replacing short spring in H & R, the body center of gravity further reduce the car look more sporty and coordination.

KW launch of the new BMW 3 Series suspension kit

    World-renowned KW suspension modifications brand recently launched the new BMW 3 Series special Variant 3 + twisted tooth shock absorber The shock absorber can be individually adjustable compression and rebound damping allows owners to fine-tune the shock absorber according to the needs of The front and rear adjustable height range of 65mm and 60mm.

Orange storm Maserati GranTurismo SR obd2 scanner conversion kit

Canada modified SR Auto Group teamed German counterparts the DMC to build a distinctive Maserati roadster addition to obd2 scanner  beautiful appearance, engine, suspension, ECU, etc. upgrade modification. DMC Sovrano wide-body kit with matte orange paintwork bright spots, the appearance modifications can not. The new design of the front and rear fenders not only make this president look aggressive, it also brings a better aerodynamic performance.

The new lightweight engine cover not only lighter, aerodynamic flow line modeling allows the rapid flow of air, and provides some downforce, carbon fiber side skirts on both sides of the body shape is also very chic. From rear looks tilt of the trunk tail diffuser at the bottom and Kreissieg F1 Valvetronic exhaust system with a very eye-catching, memorable! Replaced with H & R sport suspension front and rear suspension, the chassis 30 mm lower. The two-color wheels, is also a major attraction, after the first 20-inch 21-inch PUR 1NE bright black wheels, there is a circle orange edging.

Hidden under the hood is a displacement of 4.7-liter V8 supercharged engine, maximum horsepower of 590 and maximum torque of 348lb-ft. In addition to the appearance of power upgrades, interior changes a lot, everywhere is a needlework conjugates of leather and carbon fiber, aluminum alloy pedals, sports steering wheel brings not general driving experience! 

Strong SUV Velos converted 645 horsepower BMW X5M

From the Miami Velos Designwerks modifications to the latest works of the blue is the BMW X5M, either from the exterior or interior, it is very difficult for us to find a car to compete with works.
First of all, the use of Velos Designwerks called Stage 2+ engine upgrade kit, which can output 555 horsepower 4.4 liter twin-turbo V8 engine can now be an output of 645 horsepower. In order to achieve stronger visual impact, Velos for this X5M installed on the car used before Vorsteiner chin spoiler and rear diffuser.

A set of named IND kit form the remaining exterior modifications, including all black air inlet grid, smoked headlights and tinted windows. In order to improve handling, Velos upgrade strengthened chassis, and switched to KW cutter teeth shock-proof, and custom black ADV1 rim, greater Brembo brake caliper. Velos also installed a small components -- Valentine One radar, it will detect whether a police ambush near speed, avoid the ticket.

As the AMG! Mercedes Benz E class refit PD500 appearance upgrade package

When fans chatting to run " M ", " AMG" will be very excited, the dynamic and fashionable appearance and strong performance are the fans are pursuing, but this kind of high performance car has expensive price also obd2 was destined they only belong to the minority groups. A famous German Refitting Factory Prior-Design published a set of high quality and inexpensive PD500 appearance upgrade package, and claims that the upgrade package can be comparable to the AMG sports package. This set of PD500 upgrade kit is confined to the appearance, and is applicable to all the Mercedes E class ( W212 ) car, so we do not have to spend a lot of money can be created with a AMG shape mercedes.

The appearance of the PD500 upgrade kit includes a new front bumper, the revised bodywork side skirts, rear diffuser and the motion synthesis of aluminum alloy hub. Prior-Design Refitting Factory stakeholders quipped: " a new car in the assembly of PD500 upgrade kit, almost with the official AMG models have similar appearance, if power can follow it, it can completely replace the AMG upgrade kit. "

Power without limit Hennessy modified Cadillac CTS-V

Performance car manufacturers Hennessy obd2  ( Hennessey ) after Cadillac in performance and movement with respect to the pursuit, decided for this rare manual Cadillac a complete refit.

The original standards of the Cadillac CTS-V with a supercharged V8 engine, its power output in around 556 hp. 556 horsepower output with CTS is not bloated body size, and at the n ü rburgring adjusting the excellent chassis, can already say can and Mercedes-Benz AMG C63 ilk do on an equal footing, but many people to the CTS-V output is not satisfied with the original factory.
Hennessy ( Hennessey ) accurately captures the HP fans for CTS-V dissatisfaction, in view of this set has been very powerful powertrain made further improvements. In the installation of a set of HPE high-flow intake system, with the upgrading of the supercharger on disk, the larger central cooler and so on, its power output has reached 707 horsepower. Most importantly, it can output 707 horsepower from the engine through a manual transmission to transmit power to the rear axle, transmission efficiency is greatly enhanced to make the black version of the CTS-V performance data

It is worth mentioning that, the modified Cadillac CTS-V Black Edition is a station wagon. And special black body with the same black 19 inch wheels and hub behind loomed large yellow size brake caliper etc make the Cadillac more mysterious atmosphere. Unique diamond cutting style body made use of wagon style, more let me this wagon fans heartbeat.

Modifications to IND Distribution push the world speed BMW M5 against Japan

In order to face the end of BMW GT1 the arrival of the SEMA, each manufacturer to be eager to get into action for their " town of Bao ", for example, from Illinois in the United States, car maker IND Distribution, their latest work is based on a BMW M5 car, although M5 modified car a lot, but against the " world's fastest M5 " halo can suck your attention?

At present, IND Distribution has not revealed this is known as "the world 's fastest M5 " performance data, but we have something from the network end ni. Carbon fiber material roof cover, Recaro bucket seat, car special safety equipment from Fall Line Motorsports, suspension chose the new KW products.

Rumor has it that this M5 car with 560 horsepower, but the horsepower enhancement just speed promotion foundation, from the picture we can see that the IND for this M5 did a lot of lightweight, car spare parts demolished clean out completely, such as through the cab trunk. Perhaps the diagram of the M5 and not IND M5 's final form, all have to wait until after the opening of that SEMA.

Our military area air defense backbone - Red motor system

Since 1949, our military branches of the military are beginning to regularization. One of the most important air defense forces by the party's Central Military Commission attaches great importance. Especially in the War to Resist U.S. Aggression and Aid Korea in the 1950s, the U.S. Air Force can do anything, I volunteer ground troops indiscriminate bombing. The army's anti-aircraft weapons until the late 1950s, began from the anti-aircraft guns of various calibres, development in a series of ground-to-air missiles to the red flag.

The first generation of surface-to-air missile, the introduction of the C-75 series of Soviet surface-to-air missile. This star the number of weapons in NATO as the SA-2. Localization development and introduction while imitation success in 1964. Named red flag -1 missile system alert object, the air-ground vertical height of 3-25 km, the slant range 12-30 km altitude, high-speed aircraft, as well as part slow cruise missiles. In southern China, Northwest China in the 1960s, has been harassing US-Chiang reconnaissance aircraft. I Air Force F-5 F-6 Series fighter, difficult attacks to their U2 series of high-altitude reconnaissance aircraft hardware. Carefully calculated end-use Hongqi-2 surface-to-air missile shot down a series of US-Chiang military reconnaissance plane.



Our country in the study of surface-to-air missiles put a lot of money and manpower, but not always in the guidance, warning, missile systems breakthrough. Hongqi -2 series developed after 1967, 61 series of surface-to-air missile of the Ford Ids Vcm 1980s, the red flag to assume our military homeland defense tasks. But anti-aircraft missiles on the ship against saturation attacks in high-altitude air defense missiles, as well as the anti-missile system developed extremely well.

Improvement of dynamic NGK IX iridium alloy spark plug

NGK spark plug production, sales headquarters is located in Nagoya City, Japan Aichi Japan special ceramic industry corporation. The Japanese special ceramic industry was founded in 1936, has been 67 obd2 scanner years of history, has always been committed to the NGK spark plug, internal combustion engine related oxygen sensor, knock sensor such as the production and sales, in addition also committed to the semiconductor components, machine tools and other applications of ceramic products production and sales. NGK spark plug and oxygen sensor output ranks first in the world.

Map: NGK spark plug
Iridium alloy spark plug NGK IX as ordinary engine using advanced spark plug, the central electrode adopts fine iridium alloy, to realize more excellent fire resistance, greatly improve sensitivity. In addition to discharge electrode part using platinum, platinum spark plugs for longer service life than iridium alloy spark plug MAX. There are other special adjust engine designed by iridium alloy spark plug.

Perfect substitution, Mazda " MPX-8 " ( SE17 )

The MPX-8 is the car? Pay attention to our website readers should be aware of its identity, In fact, earlier on, is not this article's notice, has introduced a MPX-8. Its naming, the most important is a modified approach - eobd2  MPS 2.3 Turbo machines are ported to the RX-8. Just we have previously reported that transplantation RX-8 is not considered completely perfect work, at most, only be said to be complete to reach 95%, Why do I say? The MPS machine 2.3L turbocharged direct injection engine that sets transplantation works just use the MPS in the cylinder liner parts, pan head is still common L3-VE engine that is canceled the direct injection system, so, strictly speaking, before we reported that Taiwan MPX-8 is not a perfect work. The introduction of this MPX-8 is different, because Mracing have used their technology, the L3-VDT pan head and transplanted it to become a real the perfect transplant MPS machine MPX-8.

Rotor engine technology, can be described as Mazda's most proud RX cars are also equipped with a rotary engine RX-7 (FD3S) the period of time to let the world wonder. Rotor engine is like like the existence of the soul of the Mazda RX models, but unfortunately rotor engine is strong, its life was not consistent with their performance proportional to the rotor engine special triangle design, the peak of the rotor angle easily frayed rely on the combustion chamber the peak angular contact with the cylinder wall manufacturing also due to wear and tear caused by the leakage phenomenon combustion have a significant impact, and the wear and tear is not repaired, so long-term travel, engine momentum only slowly weaken and eventually scrapped. Or people say, the original is not able to be repaired? Yes, but, even if the repair, but its short life, the fact that is will not change. Is it such a good car is necessary to do this to enter the grave? Appeared multiple-choice questions, some people will think that the RX-8's rotary engine is its soul, the rotor engine repair and maintenance is rather cumbersome, they will not care, anyway authentic is what they want 's. And other people would think, the Spirit is not the soul that is secondary, the most important vehicles can continue to use. The existence of these two ideas, but in the end how to choose it? The author comment here temporarily, we still come back to this transplant RX-8 engine matters.

 

Lowest at sexy Hideo mats recommended

Hideo its handsome appearance and sports coupe positioning successfully attracted many young and seeking the most dynamic consumer's eyes, she continued selling also proved that she is an "excellent for. More personalized and more comfortable interior upgrade is necessary for the young owners, to the comfort of the occupants to further enhance safety, and does not intend to "knife" transformation, the installation of the mat will undoubtedly become the preferred project. Better safe, comfortable, easy to clean is to buy mats standard recommended for everyone here several reputation, excellent quality, the price is not too high mat to meet everyone's requirements.

[Brand]: 3M
       [Name]: the Nomad 5 sets of environmentally friendly vehicles pad
       Colour: beige gray
       [Material]: environmental material
       [Reference price: 430 yuan

Figure: elasticity standard Wujiantao, environmentally friendly materials, including heavy metals, without valid volatiles, coiler, scraping dirt Tibetan Sand ability, effective non-slip.

 

Decryption 2012 Ford Fawkes Ford Sony sound system

Map: Sony multimedia host, operating keys, key layout is reasonable, the use is very convenient. More with the powerful function of SYNC through Bluetooth function, can be easily implemented with a mobile device connection.
Car life, always cannot leave to accompany the music, new 2012 Ford Fawkes partial models equipped with the 9 horn loudspeaker system, while in the control panel, a printed electronics giants -- Sony logo, this is undoubtedly the new Fawkes's " fighting " raise a lot of. Next, small make up will be dismantled this highly acclaimed Sony multimedia entertainment system.

Figure: shortcut buttons on the steering wheel, so that the set of Sony multimedia system in the use of more convenient.
Before disassembly, small make up to the set of audio. Overall, the sound quality was up to " Sony " the gold signs, in the same class of car is hard to beat, but also to the pop music interpretation is better, it is also consistent with Fawkes's vehicle positioning -- young gens, retained the Sony sound with consistent style.
Even so, listen to contrast can still find the stereo system deficiencies, low-frequency elastic enough; if performed well, but the accuracy of voice is full, poor; high frequency weak. In this 9 speaker surround sound system, positioning is just passable, the resolution also needs to be improved.

Wine better than new wine in new Camry chassis deconstruction

Shape than the new generation Camry has made significant changes to the old models, with a more extensive product line and increase the displacement after listing quickly attracted the attention of many consumers, the younger designed to meet the public's aesthetic standardsoutside, but also increases its audience. What greater displacement, more dynamic designs Can say Mingkai US Roger Richter bottom to get rid of before consistently moderate image, and today we Speaking from the chassis together to explore what happens. The new Camry chassis structure with classic Kay Murray almost identical, but after re-brewed wine in new bottles, it may not let the new wine to par.

A new generation of Kay US-Swiss in the suspension structure and tone to teach with the ordinary version of Kay US-Swiss much difference, still significantly biased comfort tune to teach, but it will not be because the body aggravated and deliberate the suspension tune than the more soft Some, comfort with one o'clocktoughness. Overall driving feeling pretty down to earth, but, it seems that there is a trace of the impulse to want to go "wild" This is the whole new generation Camry driving feel.

Figure: the first half of the frame, the new Camry use integrated closed subframe, can provide better rigidity, this generation Camry sense of control has been a qualitative leap.

Figure: subframe is bearing engine, as well as the suspension arm part fixed point, is a frame extension function.
Chassis suspension from the aspects of shape with classic Camry and of no great distinction, but passed on suspension system reset, so that a new generation Camry in the texture of different driving two car, it has always been conservative style of the Toyota, can be said to be a bold move. Perhaps the Toyota knew, from the European rival recapture lost territory, or to directly impact the opponent 's strengths, handling. The adventures of a stroke from the author's point of view is successful, at least you will not criticize the Camry won't give you a solid, stable control.

  

Bridgestone published the third generation RFT Technology

Bridgestone in a few days ago finally released their third generation RFT technology. RFT Run Flat Tire is a sidewall reinforced tire, the first generation product was born in 1987, because the tire wall thickening and strengthening to tire in the event of lack of gas can still be safe to travel for a range of requirements, so when the vehicle is running, driving feel compared to the general tire would 've. Since 2005, along with the sidewall reinforcing rubber improvement, so that when the driving comfort, created second generation of thickened tire, the first generation of RFT can say is a kind of experimental technology, the second generation of RFT, starts massively to the practical advance, when compared to the famous products include Potenza RE050A and RE070R, but the second generation of products while the sidewalls of a tire stiffness decreased, even with more advanced rubber and tread design, still unavoidably in the comfort and the limit condition of the grip has been missing. The third generation Run Flat Tire newer technology, reduce the radial stiffness, has not lost in the general tire driving comfort. The new technology can also be used for the development of various high aspect ratio tire, but is not limited to the low rate of flat tire on the motion.
Each generation of comfort compared

General tire stiffness to 100 and with the generation of RFT technology is compared. The less the more comfort parameters
High ( 245/40R18 93W tire size. A comparison is made of third generation using a new reinforced rubber and fetal bone.
The third generation of RFT Technology Overview
The third generation RFT design theme is " control the heat ". Sidewall strengthening Run Flat Tire, if you want to strengthen its comfort, is the most effective method of thinning and softening rubber tire wall, when the tires are subjected to impact of sidewalls flexion movements to heat generation. Durability ( air pressure is lost after the durability), maintain and improve driving comfort is improved both at the same time, handle the heat becomes the biggest question. To solve this problem, the Bridgestone Corp using three kinds of new development concept to be realized: one is the development of novel sidewall rubber; two is the use of thermodynamic characteristics while suppressing deformation of the model of fetal bone; three is adopted to help the tire wall cooling Cooling Fin technology. The 3 techniques to improve the driving comfort effect, therefore, will be based on vehicle weight, practical effect, automobile commercial respective situations using the appropriate balance then reality.
( 1) to reduce fever type sidewall reinforcing rubber
" Nano Pro-Tech " technology can make new tyre wall reinforcing rubber carbon molecules to form a more dispersed distribution, when the tire is applied with pressure, carbon molecules between the friction will decrease, fundamentally inhibiting heat generation. Using this technology, the third generation RFT and the second generation, heat will be reduced to half its original.

New tyre wall reinforcement in rubber suppression of fever.
NanoPro-Tech technology summary

Two left inside the box is the old rubber polymer carbon molecular friction generates heat energy loss, appear on the right is used;
NanoPro technology polymer third generation RFT technology under carbon molecular dispersion, reduce carbon molecules between friction, reduce energy loss.