Showing posts with label sub. Show all posts
Showing posts with label sub. Show all posts

Saturday, August 30, 2014

Q Logic Car Audio Sub Enclosures

The advancements being made for getting the maximum output out of your speakers is to the peak. The subwoofers, the component or full-range systems and especially enclosure are here to bring out the most out of your stereo system fitted in the car.


The component speakers that have separate tweeters, crossovers etc giving each part of your speaker to play to its fullest while full-range speakers are easy to install and not all bad. The subwoofers that are responsible for the bass production while enclosures that play dually in the favor of your speakers. Firstly, to avoid any unwanted noise and secondly to keep your speakers away from dirt and dust.

All the equipment installed in your car to play tracks through your stereo system is individually important. Component speakers or full-range speakers are there in your car to play your favorite tracks while doing justice to all the tunes. Naturally, the more you spend the more you are going to get a great result while there are some tips and tricks that can boost up sound production of your speakers at the same time as subwoofers are there to emphasis on bass. Baffles and foam placed between your speakers has great importance as well as they make sure the body of the car and speakers to not bump into each other all the time and producing noises that will be irritating to the ears. Enclosures that are box shaped to place your speaker’s in. the main function of these enclosures is to produce sound that is accurate and tight while they keep your speakers safe from dirt, prolonging their life.

The two kinds of enclosures that can be found in the market are sealed and ported enclosures. Like the name suggests, sealed enclosures are air tight making sure no air leaves or enters the box while ported enclosures have holes in front of the box to equalize pressure within and outside the box. This enclosure may increase the efficiency but the sound production is less accurate and tight than the sealed enclosure. The only thing that matter is that the different manufacturing of these enclosures do really make a difference in the sound production. If you want an enclosure for your speakers then Qlogic car audio enclosures is the best. Their carpeting around the box makes sure it keeps your speakers away from dirt while the box itself maximizes the productivity level. Now keeping in mind the importance and role played by the enclosures, these things come with the speakers themselves although you can pick from one of the types mentioned above according to your own taste and requirement. Sealed enclosures are actually easier to make yourself and produce sound that it should while ported are way complicated and do not have more fans. Qlogic also offers every other car audio accessories to jazz up your stereo system.

The thing that attracts every customer to purchase Qlogic car audio equipment is as they are way much cheaper with warranty and result that will make you its fan. The shipping for this product is very cheap than the rest of the electronic devices. The carpeting of Qlogic looks like they are made not just to play but to look good as well. The stylish styles and boxes will dazzle up your car interior as well. You can purchase this product from the links listed below.

http://www.qlogicenclosures.com/

http://www.crutchfield.com/

http://www.carstereoworld.com/

http://www.hifisoundconnection.com/

Read More..

Thursday, August 28, 2014

Simple Sub carrier Adapter For Fm Tuners Wiring diagram Schematic

Simple Sub carrier Adapter For Fm Tuners Circuit Diagram. In this schema Op amp Ul and its associated components comprise the 67-kHz bandpass filter. A twin-T network, comprised of four 1100-12 resistors and four 0.0022- capacitors, is connected in the feedback network of the op amp. 

 Sub carrier Adapter For Fm Tuners Circuit Diagram


Sub


That gives some gain at 67 kHz and heavy attenuation for frequencies above and below that frequency. An additional passive filter at the input to the twin-T network (containing a 220-pF capacitor and a 10,000- resistor) provides some additional roll-off for frequencies below 67 kHz. In practice, the bandpass-filter action covers a frequency range of about 10 kHz above and below the 67-kHz center frequency. Resistor R18 sets the gain of the bandpass-filter stage. Integrated-schema U2 is a National LM565 phase-locked loop that modulates the 67-kHz fre-quency-modulated (FM) signal from Ul. 

The LM565 PLL consists of a voltage- controlled oscillator (VCO) set to 67 kHz, and a comparator that compares the incoming frequency-modulated 67-kHz signal at pin 2 with the VCO signal that is fed into pin 5. The output of the comparator represents the phase difference between the incoming signal and the VCO signal. Therefore, the output is the audio modulated by the subcarrier. A treble deemphasis of 150 is provided by a 0.033- capacitor (at pin 7). The free-miming VCO frequency is determined by the 0.001- capacitor at pin 9 and by the resistance between the positive rail and pin 8 (100 in series with R19). Variable-resistor R19 adjusts the oscillator frequency (also known as the center frequency`) so that the incoming signal is within the lock range of the PLL.


Read More..