T-Mobile has officially announced the forthcoming launch of the Motorola Charm. The device will be launched on August 25th for $74.99 after new 2 year agreement, as previously reported.
The Charm features a 2.8 inch capacitive touch display at QVGA resolution, Android 2.1 with Motoblur, QWERTY keyboard and a new rear-mounted trackpad dubbed Backtrack along with a 3.0 megapixel camera with autofocus, Bluetooth with stereo audio support, speakerphone and 3.5mm headphone jack.
Going to movie theatres and cinemas to enjoy the big screen and its realistic scenes and sound effects? You can do that at home or anywhere now. Tired of screeching-like sound from your headphones? With your bluetooth headphones, paying for a cab to the nearest cinema and the ticket is not a problem anymore.
Also, with you bluetooth headphones, you can listen to any music without hurting your ears. Bluetooth earphones now have surround sound technology that enhances the quality of sound produced by your bluetooth headsets to create a better listening atmosphere.
With the progress of technology came the widespread use of bluetooth earphones. These awesome gadgets are cool to use and are very handy. Bluetooth-powered headphones have changed the way people communicate. While wired headphones have served their purpose to humankind, wireless bluetooth headsets made this purpose more fascinating.
Aside from providing mobility, greater link up, and comfort, wireless headphones now have surround sound technology that makes listening to music more realistic. Surround or multidimensional sound technology in bluetooth-capable headphones have made listening to music or simply using the headphones more enjoyable and more convenient for users.
Surround or 3D sound technology includes a wide variety of ways to enrich sound quality of any audio source like speakers and headphones. Surround or 3D technology is usually used in theaters and cinemas to add life to the film and make it more realistic to people.
Not only does 3D surround technology apply to ordinary wired headphones but also to bluetooth headsets. There are earphones which create surround sound like that of cinemas and movie theaters. Surround sound in such headphones provide greater quality of the sound than conventional headphones do. However, the effect of surround sound might seem artificial than realistic. The sound might reverberate too much in your ear. In addition, the surround sound quality varies from one model of bluetooth headset to another. Yet, despite this, the sound is of much better quality than regular headsets.
If you are looking for the best bluetooth-enabled headphone with surround sound technology, you should try looking for top three peoples’ choice and test which of these bluetooth headphones suit your tastes and preferences.
SquareTrade © AP6.0 Store Home | About | Guarantee | Shipping Store Search in titles & description Categories 15″ PA DJ PRO AUDIO Speaker 300 W New Band Club Karaoke Description Shipping Payment Guarantee These 12” speakers have a great sound that is ideal for bands, bars and churches. These work great for playing to crowds in the 50-500 person range. We sell tons of these to musicians who can’t quite afford our 15” version. However, by buying these instead of the 15” you are not compromising any quality. The 12” are great for the bands that are not playing to the extremely large crowds (500 plus). These are our second best selling single woofer cabinet, behind the 15” version (SA-15T). We sell a lot of these and customers are pleasantly surprised by the quality. We would put these up against any mid-high level big brand name speaker cabinet. Check out our “Seismic Audio Concept” below, as well as our guarantee. Model – SA-12T Woofer – 12″ 2 way and has a 40oz magnet with a 2” kapton voice coil 300 Watts RMS – 600 Watts Peak Wired at 8 ohms 45Hz –20KHz Sensitivity: 96 db Tweeter: 1.5″ Titanium driver with 10z. magnet and 1″ throat Crossover: 12/18db per octave 3000hz high power w/ dual glass bulb tweeter protection 5/8 plywood front panel Black carpet with black metal corners Recessed handles Full Metal Grill Input terminal with two 1/4″ inputs & two speakon inouts Can be Daisy Chained Dual ports 1.5” tripod speaker stand mount on bottom 25” tall – 16” wide – 14” deep This speaker is brand new. One year warrant This listing is for one of these 12″ speaker cabinets. You will receive one speaker cabinet, pictured and described above. Each speaker cabinet has the specs above. If you would like more than one, you can bid the quantity you would like through this listing. These are best for DJ’s, PA use, keyboards, vocals, studio monitors. These speakers are great for vocals, KJ systems, DJ gigs, keyboards, weddings and churches, and sound & studio monitors. Good for a full PA system. US Shipping Shipping for the lower 48 states is $0. Shipping for HI and AK is $169.99. We are unable to ship this item to an APO address. Items generally ship within one business day of receiving a cleared payment. This item is shipped via FedEX. International Shipping Shipping to Canada is $119.99. Shipping to Puerto Rico and Guam is $169.99. Shipping to all other countries is N/A. We need a phone number for all International orders. This item is shipped via FedEX to Canada. We are unable to ship this item to countries other than the USA and Canada. Customers outside of the USA may be charged a brokerage fee when receiving this item. We will not lie on the customs forms when we ship. Please do not ask us to. Items generally ship within one business day of receiving a cleared payment. TN residents will pay a 9.25% sales tax. We stand behind our products. If you decide within 30 days that something is not for you, send us an email. We will explain to you how to return or exchange the item. If you received a damaged item, don’t panic. Send us an email. We will file a claim on our end and have FedEx pick up the damaged item. We will then issue you a refund or ship out a replacement right away. If you have any warranty issues, send us an email. We stand behind our items and we will replace or fix your item within a year of the purchase date. Look around our eBay store, we are sure to have something you like. We try to carry many different types of band/PA/DJ related gear. We are always adding new products. Everything we have in stock will be listed on our site at all times. If for any reason you decide that our product is not for you, send us an email within 30 days and we will allow a return and refund or exchange for the purchase price. If you are not happy with our product for any reason, let us buy it back from you. No questions asked. If an item arrives damaged, send us an email. We will file a claim on our end and get you out a replacement or refund right away. We will have a carrier pick up the damaged item from you at no additional charge. If you have a warranty issue, send us an email. We will fix it or replace it as quickly as possible. Seismic Audio is built on the belief that musicians can sound unbelievably good, without spending a fortune on well branded and marketed speaker gear. Our goal is to help musicians realize that the $1.00 logo on the front of a speaker cabinet is one of the main reasons why the prices of well-known speaker equipment is so outrageous. Clubs and bars are usually dark. Party-goers and concert listeners usually have no clue of who designs pro audio gear. Why pay the big bucks, when you don’t have to? Seismic Audio products are designed to prove to the consumers that the logo on the speaker does not mean it is the best equipment on the market. Our goal is to get musicians rocking with great sound, reliable equipment, and at an affordable price. View our listings to see if we have what you are looking for. Then view our feedback and see what others think about the Seismic Audio brand. If you don’t like our product, we will buy it back from you. No questions asked!
While there are many types of full-size (circumaural) or earpad (supra-aural) headphones, for this blog I’m going to compare an open-back headphone from Grado, a SR225i ($200), with a closed-back headphone from Phiaton, the PS 500 ($299).
Sure, other manufacturers make open- and closed-back (aka sealed) headphones, but generalizations about the sound of the two types hold up pretty well. DJs, musicians, and recording engineers generally prefer closed headphones because they seal the wearer’s ears, limiting how much sound they hear from the world around them, and at the same time, people close to the person wearing the headphones don’t hear very much sound “leaking” from the headphones. So closed ‘phones are great to wear in bed. Isolation from external sound isn’t as effective as a noise-canceling headphone, but the closed-back headphone doesn’t use batteries to power the noise-canceling circuitry. And closed-back headphones tend to make a lot more bass than similarly priced open-back designs.
The Phiaton PS 500′s outer earcups and earpads are covered with genuine black leather, and the cloth-covered cable adds a touch of luxury to the design. It’s a very comfortable and beautifully built headphone.
With an open-back headphone, like the Grado SR225i, you hear external sound quite clearly. This is a good thing if you ever want to listen on the street. Anyone near you will hear some of the sound of the Grado. Bass may not have the weight of a closed-back design, but the bass quality and definition are clearer than most closed-back designs. Open-back headphones tend to be directed to the audiophile market, but that’s not to say there aren’t closed models that appeal to audiophiles. For me, the biggest sonic difference is spatial: closed headphones make a sound that’s “inside the head,” and open models are literally more open, so they sound a bit more like speakers. The better closed headphones exhibit less of the inside-the-head quality, but they sound less open than the very best open headphone models.
So I hesitate to say one type is better than the other; it depends on what you’re looking for from a headphone. I’m an audiophile so I prefer open headphones, but there are lots of folks who own both types and use them as needed.
My full CNET review of the Grado SR225i will be posted soon, but for now I’ll say the Grado is a very detailed sounding headphone. Its open quality is hugely appealing, and it sounds “you-are-there” realistic with good quality recordings. It’s not forgiving with harsh, dynamically compressed pop and rock recordings. Bass is nicely balanced, but a bit lightweight, compared with my much more expensive Grado RS-1, and most closed headphones.
The Phiaton PS 500 is a bass champ, the low-end really kicks! Definition is very good, but the Grado is better in that regard, but the Grado’s bass feels lightweight compared to the Phiaton’s. It’s a classic closed vs. open conundrum.
From the midrange up it’s a closer contest; that’s what I thought while listening to Elton John’s “Tumbleweed Connection” CD. John’s vocals and the acoustic guitars were extremely present sounding over the SR225i; the PS 500 was darker toned and warmer sounding. Less immediate, and I couldn’t hear the analog tape noise over the PS 500 as I did with the SR225i. Is that a good or bad thing? That depends, if you want to hear everything in the recording, it’s bad; if you prefer a smoother, more relaxed sound that “hides” tape noise, then you’d prefer the PS 500.
These are two very different-sounding headphones, so I can’t predict which one you’d like. It comes down to preferences and whether you need an open- or closed-back headphone. The best way to know for sure is to audition them side by side; if you can’t do that, the first thing you have to do is decide if you need the isolation of a closed design, or the open quality of a Grado, Sennheiser, or another open model.
Guitar amplifiers are electronic amplifiers specially designed to be used with electronic musical instruments.
They are mainly made in two major forms. The combination (or combo) amplifier has the amplifier head and guitar speakers in a single unit. The contains the electronic circuitry constituting the preamp, built in effects processing, and power amplifier.
In the second form, the head is detached from the speakers, and joined by cables. The separate head is normally located on top of one or more loudspeaker enclosures. This separate head when placed on top of a speaker enclosure or cabinet forms an amplifier stack or amp stack.
Instrument amplifiers Types
An extensive range of instrument amplifiers can now be used with the electrical guitar. Some are for general purpose and some designed for specific instruments and even for a definite sound. These comprise: Traditional ones which generate a clean, warm sound a sharp treble roll off at 5 kHz or less and bass roll off at 60 to 100 Hz. It has presets with built in reverb and tremolo (vibrato) units.
These types are often used by traditional rock, blues, and country musicians. Chances are that when on higher volume level the sound can get distorted. So to counter higher end bass amplifiers at times include compressor or limiter features, and an XLR DI output to patch the bass signal directly into a mixing board. To keep the bass amplifiers cool they are often provided with external metal heat sinks or fans.
Keyboard amplifiers, have a low distortion rate and also to make things easy for its functioning it has a simple onboard mixer. This assists the keyboardists to control the tone and level of several keyboards.
Acoustic guitar amplifiers are intended solely to produce a clean, transparent, acoustic sound when being used with acoustic instruments with built in transducer pickups and microphones.
In addition to a 1 by 4 inch input jack, some bear an additional input jack for inserting microphone. This is known easily as it will use a three pin XLR connector. Conversely, phantom power, which is not a necessary for lower end amplifiers, is often provided with the high end versions, so that musicians can use condenser microphones.
Vacuum tube guitar amplifier circuit is rather uncomplicated. Two triodes are used in the preamplifier section for obtaining a high signal level to implement any tone controls and drive the following sections. Two more triodes split the phase of the signal and drive the final pentode or beam tetrode (kinkless tetrodes) tubes of the push pull power amplifier stage.
Solid state guitar amplifiers commonly have the quickest response time, even more so than modeling amps. Tubes tend to create warm overdrive sounds instead of cutting the peaked signal off. They more or less pull the peaked audio information back (like natural compression) which creates a fuzzy overdrive sound.
Modeling guitar amplifiers are used to simulate sounds of well known cabinets, guitar amps, and effects. Digital processing is done to obtain this, although there are prevalence analog modeling amps as well, like the Tech 21 Sansamp. Modeling amps characteristically output a wide range of tones and effects, and offers cabinet simulation, which aids the recording without a microphone.
LED lighting for reef tanks is on its way to becoming a reality. Different LED fixtures address the lighting problem in several different ways, small number of high power LEDs with optics or with large numbers of low power LEDs with no optics.
The last article reported test results on some LED fixtures [http://www.advancedaquarist.com/2010/2/aafeature2] and their comparison to other lighting technologies. This article continues in the same vein and presents results on lighting output for some more LED fixtures available in the market. Table 1 presents a list of the LED lighting fixtures reviewed in this article. Each of these was tested using the same set up as my previous reflector tests, using a 3′X3′ grid with a spacing of 3″ in the X,Y direction. The fixtures were centered on this grid, and PAR was measured as PPFD (Photosynthetic Photon Flux Density) in micromoles/m2/sec using a LICOR 1000 data logger and a LI-192SA underwater cosine corrected sensor calibrated for both air and water. The data logger was set to average 5 readings for each data collection point. The data was imported into Microsoft Excel for analysis and the data was plotted to display the light spread and intensity at various distances. 4 plots of the data with 2 plots at each distance were generated showing:
The LED fixtures tested fall into 2 separate categories – ones using fewer high power LEDs (Aquaillumination) and ones using large numbers of low powered LEDs (Eco-Lamps KR-91, Blue Moon Aquatics and Panorama). The low powered LEDs were tested at 18″ and 24″, while the high power ones were tested at 24″ and 30″.
While PAR values are are not the only things that we should be concerned about when purchasing an LED fixture, they are certainly the first criteria that must be met when selecting any lighting system. Additionally, more specifically with LED systems there are a host of other criteria that must be considered. While these criteria are more subjective and easily swayed by user preferences and values, this article focuses primarily on the light output and distribution.
In the current situation in all areas of lighting, CRI has been more and more attention. Especially the indoor environment, it has high demand for the LED color rendering (CRI). Such as low pressure sodium lamp is close to 200lm/W in luminous efficiency, but monochromatic yellow light only was used for road lighting and very few other occasions. As the United States Department of Energy (DOE) used for indoor lighting LED lights color rendering index from the original 70 (Aug.2007) up to the recent provision of ≥ 80 (Dec.2009). Choice in light quality, high luminous efficiency and high color rendering are the key for LED. Shanghai Lighting Association chairman think that white color is the high photosynthetic efficiency and high color rendering index and meeting the lighting environment or lighting operation, that is the best white color. Endless disputes that traditional light source and LED replacement lighting market competition and decisive Force issues, director also has its own unique perspective. He thinks, at present station, LED high light efficiency means that the emission efficiency is higher than the traditional light source. Because the traditional light sources in different occasions as the leading role, if we want to compare with them, we can put the High luminous efficiency traditional light source put in shield as a benchmark, then put the led in the shield to compare, that is the good way. DOE current document, there will be ordinary light bulbs and fluorescent lamps MR16 comparison; As for CRI, a variety of different occasions the color rendering index is provided for a human value is not provided on some occasions, such as outdoor lighting; Some had made the detail decision, there are so much demand for the indoor lighting, Such as home environment, CRI is more than 80, it have become popular at present. LED coming into lighting industry trends to clear, the goods of high luminous efficiency and good color rendering index has showed at the indoor lighting industry to show a fairly good performance and strong development. Therefore, when looking LED light effect, it must be concerned about the color rendering index; just talking luminous efficiency, CRI is not any significance.
Cut the fiberglass sheeting to exactly what the software requires. For precision sound, you must be precise about your measurements.
Fit all of the sides together except the face, using an all-purpose glue. Any high-quality glue or epoxy found in a hardware store that works on fiberglass is good.
Lay the silicone caulk down along all of the inside seams. Use your finger or a small foam brush to remove any air bubbles, which will degrade your sound quality.
Cut a layer of fiberglass insulation to fit in the bottom of the box and lay it down inside. This will help improve the response of your speaker.
Measure the speakers and draw holes in pencil on the face of the box.
Cut holes on the face of the box. Glue the face onto the box and let it dry overnight.
Drill small holes in the back of the speaker box for the wiring. Run the speaker wire through the holes and caulk them to avoid any air leaks.
Attach the speakers to the face of the box. Make sure you caulk the speakers to avoid any air leakage. Skipping this step will greatly affect your sound quality.
The Samsung Eternity phone has thin LED lights on its sides that flash when an event takes place, such as an incoming call or text message . The LED lights are called the illumination bar. The illumination bar can be customized to display a desired color. Changing the illumination bar settings to create a rainbow effect requires accessing the service settings menu.
Press the “Dial” button. Enter “*#197328640#” (without the quotes) in the phone number field.
Press “2″ for “Version Information.” Press “6″ for “RGB LED.” Press “2″ for “Color Tune.” Press “5″ for “Blue.”
Press “1″, “0,” “2″and “0.”
Press “3″ and enter “100″ in the bracketed field. Press “OK” twice.
Press “4″ and enter “50″ in the bracketed field. Press “OK.”
Press “5″ and enter “100″ in the bracketed field. Press “OK.”
Press “6″ and enter “0″ in the bracketed field. Press “OK.”
Press “7″ and enter “100″ in the bracketed field. Press “OK.”
Press the back button twice.
Press “1″ then select the option or action for which a rainbow display is desired, such as “Msg” or “In Call.”
Press “1,” “2,” “2″ and “1.”
Press “3″ then enter “15″ in the bracketed field. Press “OK.”
Press “4″ then enter “10″ in the bracketed field. Press “OK.”
Press “5″ then press “1.”
Press the “End/Hangup” button.
PORTLAND, Ore. — What is touted as the world’s smallest analog microphone fits into a package as much as four times smaller than existing analog microphones, according to developer Akustica Inc. (Pittsburgh). The 2-mm2 chip houses a 1-mm2 MEMS microphone die that the company announced last year. The newly packaged chip can be mounted alone or in arrays of two or more for sophisicated acoustic processing. Davin Yuknis, vice president of marketing and product management, claimed the MEMS device is “so small that you can put three or four of our analog silicon microphones in the same space as a single conventional mic.” Akustica’s digital microphones are used by PC makers on high-end models like Fujitsu’s LifeBook. The primary markets for miniature microphones, however, is mobile handsets and Bluetooth headsets, where digital microphones are not yet being used. Akustica said its analog MEMS microphone also features lower power than conventional mics, drawing only 140 microwatts in typical applications without sacrificing quality. It also delivers 42 dB sensitivity and a signal-to-noise ratio of 58 dB. “We expect many headset and handset designers to be switching to digital mics, but for now the biggest trend we see is designers using multiple analog microphones in the same space as their single-mic designs,” said Mark Nave, Akustica’s product marketing manager. Akustica has yet to announce design wins for its analog microphone, but has distributed samples to several customers which it expects to name soon. “Early adopters” of Akustica’s microphones “are Bluetooth headset manufacturers,” said marketing director Marcie Weinstein. “Cellphones won’t be far behind–there, it’s getting to be more about dual microphone handsets.” Multiple microphones used in arrays could enable noise cancellation and beam-steering of microphone pickup pattern. Those capabilities are being design into high-end headsets and handsets.
