As an Edis distributor, reseller or as an installer you can add you Logo to our new "Supplier Wall" with weblinks to your site attract enquiries. We will also email schools and colleges to let them know where they can buy Edis products. If you are interested in joining this campaign - let me know.

Having difficulty deciding on the correct size amplifier and speaker system for your venue - here are some key tips to help you make the right decision.

Classroom or meeting room: 15 Watt per channel for 75 dB Sound Pressure Level (SPL) average in a normal 6m x 10m classroom or meeting room

Solution :

EA015/EA014/Edis Cube+/EA54,EA56 or EA52 soundbars (active speakers)
or
EA1128/EA35/EA1144 with E206, E75 Wall or E62 ceiling speakers

Medium sized hall

Folk music in a pub or coffee shop with 50 seats: 25 to 250 Watt

Folk music in a medium-size hall, pub,  club or house of Worship With 150 to 250 seats: 95 to 250 Watt  

Solution :
EA1153 with 2x or 4x E810 speakers

Medium sized hall - Major event

Folk music at a small outdoor festival (15 metres from speaker to audience): 250 Watt

Pop or jazz music in a medium-size hall. club or house of Worship with 150 to 250 seats: 250 to 750 Watt

Pop or jazz music in a 2000-seat concert hall: 400 to 1,200 Watt

Rock music in a medium-size hall, pub, club or house of Worship with 150 to 250 seats: At least 1,500 Watt

Rock music at a small outdoor festival (15 metres from speaker to audience): At least 1,000 to 3,000 Watt

Solution
The EA1168 covers the majority of medium sized hall events - with the option of much bigger (or an additional two ) amplifiers for the rock chicks !

New article with tips on designing display graphics is ready for downloading now. Feel free to subscribe and download here or view on-line.

The Wall Street Journal recently reported that a single trader, rumored to be J.P. Morgan Chase & Co., holds approximately half of the world's exchange-registered copper stockpile. This single trader's copper holdings are said to be worth about $3 billion.

The WSJ said the price of copper is up 28 percent in 2010. It quoted Barclays Capital as saying that copper demand will outstrip supply this year by about 455,000 metric tons. Of J.P. Morgan, the report said the company "recently had a large position in copper, though it is unclear whether the U.S. bank increased its holdings or whether a new player has taken a dominant position."

A rise in copper prices is one of several drivers pushing up the price of cable.

You may already have a well developed website, maybe a blog too, a support Wiki adds to customer experience and RSS feed keep people informed you may also be well aware that the social media sites like Twitter and LinkedIn, for professional users and marketeers, are growing very fast.

There are some big names from the Audio Visual market already using Twitter - some are very prominent like Creston, Extron and Christie, there are also many Editors of AV and related press, magazines and journals on Twitter who belong to lists of AV "Tweeters". And there is also the opportunity to just see what others are doing as it happens.

If you would like to find out more yourself and would like to use Twitter please feel free to download this article that I plagiarised from books and various websites "How to Use Twitter for Business"

I've just updated the list of exhibitions on our Wiki events page that we plan to attend in 2011.... hope to see you at one at least.

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We hope to see you at the BETT show - Olympia London between 11th to 14th January 2012. The BETT organisers say "at times when technology has a vital role to play in modern teaching and learning, a visit to BETT can help you make sense of the latest education technology and resources available".

Tablets will become a common sight in the workplace in the near future and they'll have a big impact on corporate MDM strategies.

Corporate tablet purchasing is poised to take off during the next few years, according to a new forecast from Gartner.

The research firm says that businesses across the globe will snap up 53 million tablets in 2016, more than triple the amount that they are expected to buy this year (13 million). Describing the consumerization of IT trend as an "unstoppable force," Gartner estimates that smartphone and tablet sales will reach 821 million units this year and cross the 1 billion unit threshold in 2013.

"In 2016, two-thirds of the mobile workforce will own a smartphone, and 40 percent of the workforce will be mobile," said Gartner research vice president Carolina Milanesi said in a statement.

BYOD Challenges Await

Smartphones and tablets will make up 70 percent of all mobile devices sold in this year, adds Gartner. Such brisk mobile device adoption adds momentum to the BYOD phenomenon that's roiling the IT industry, said Milanesi.

Plus, it spells good news for mobile device management (MDM) solutions providers.

"For most businesses, smartphones and tablets will not entirely replace PCs, but the ubiquity of smartphones and the increasing popularity of tablets are changing the way businesses look at their device strategies and the way consumers embrace devices," said Milanesi.

Android Ascendant

While the iPhone is the poster child of the consumerization of IT trend, devices powered by Google's Android operating system are mounting a big challenge to Apple's market-leading handset. Rival research outfit IDC last week revealed that Android made up 75 percent of smartphone shipments during 3Q12.

Gartner predicts that "56 percent of smartphones purchased by businesses in North America and Europe will be Android devices in 2016," a 34 percent increase over this year's estimates. "Today the wide range of brands and price points that the Android ecosystem is offering is winning over users. While Apple remains the heartbeat by which the market moves, Google has rapidly become its archrival," said Milanesi.

And Microsoft's big bet on Windows 8 will pay off as far as business customers are concerned. Gartner expects Windows 8 tablets to trail Apple's iPad and Android slates, but by 2016, tablets and convertibles powered by the software giant's touch-friendly OS will make up 39 percent of the business market in 2016.

November 7, 2012 - By Pedro Hernandez

About the Author

Pedro Hernandez is a contributing editor at InternetNews.com, the news service of the IT Business Edge Network, the network for technology professionals. Follow him on Twitter @ecoINSITE.

This article on how the financial crisis of the past 2 years has affected production in small to medium size enterprises in China paints a picture of the progress made to overcome difficulties created by the financial crises around the world.... download article here

China’s vast export sector has been battered on several fronts recently according to the Los Angeles Times. Demand from foreign customers has slowed. The Renminbi is strengthening, making Chinese goods more expensive. Hourly wages are rising with additional pressure resulting from headlines about poor working conditions at Foxconn, the massive assembler of Apple tablets and phones.

Despite this, China has strengthened its position in the global supply chain. Already the world’s largest exporter, China’s share of global exports expanded during the recent global downturn, increasing to 10.7 per cent last year from about 9 per cent in 2008. When times are hard lower cost goods have a greater edge.

Economists say the slowdown may continue depending on how the European debt crisis develops, and the results of the central government’s two-year campaign to deflate the nation’s property bubble.

“China is offsetting the head winds because it keeps capturing more market share,” said Louis Kuijs, an economist at the Fung Global Institute in Hong Kong. “Yes, labour is becoming more expensive over time, but it’s still much cheaper than the U.S. or Europe. The ratio of price to quality is still far more favourable for production in China.”

Prices for Chinese exports have risen 21 per cent since 2005, but less than the 32 per cent increase on goods from India and 33 per cent rise on exports from Mexico in the same period.

China’s growing rate of imports, has been rising faster than exports since the 2008 financial crisis because of the country’s explosive construction demand.

The EA35A in-wall amplifier module fitted into a dual gang Fast-install kit proves to be the favourite choice for installers. The faceplate has 2 audio inputs to a 30 watt stereo amplifier with VGA, composite video and USB connections See more here...

3 Simple Rules to reduce Noise Caused by Earth Loop faults in Audio Visual systems

A familiar problem for audio visual installers is the level of noise induced into the audio path created by earth or ground loops especially when using touchscreens but also projectors.

The cable screen/shield should be connected to the chassis earth only at one point (one end of the cable). This should be at the host connection for the best noise immunity.

The cable screen/shield is often connected to the chassis earth at both ends of the cable connection. Since this makes an earth to earth connection between the computer and touchscreen, it can create an “earth loop” or “ground loop” problem. Since the earths are probably at different voltages, a large current (often several amps in magnitude) can flow between the earth points if the shield has a lower impedance to the current flow than the normal earth path. For correct shielding, all cable shields should be connected together, and then earthed at a single point (at the host’s chassis earth - normally a computer in AV systems)

The signal earth must not be connected to the chassis earth

A chassis earth is intended as a safety ground for power supplies, EMI filters, voltage spike protection circuits, AC neutral returns, and all manner of AC and DC driven devices. As a result, the chassis earth can carry relatively large voltages and currents. The signal earth is not the same earth as the cable screen/shield earth which connects to the chassis earth  - it's the earth used for the audio signal

Power cable and signal cables must be segregated

The most common error when installing AV cabling is running power cables (110v or 240v  AC) in the same trunking or conduit as the audio visual cables (or running them alongside in ceiling voids) which is guaranteed to cause interference. The practice of running them together is often done to reduce the cost of cable installation but ignores the interference risks.  And if the AC cable is powering relays, motors, or fluorescent lighting with high voltage spikes then additional noise above the mains "hum" will be induced into the adjacent audio and video cables.

Systems using VGA cables are the main culprit as the audio is in analogue format and easily affected by induced hum and other noise, HDMI cables are less likely to be affected by low frequency noise - simple inline isolators can be used with VGA cables to overcome or reduce the problem

D J Edis-Bates C.Eng MIET

David Edis-Bates will be attending the Electronics fair in Hong Kong on 14th October - if you plan to be there and would like to meet up please email me or call me on my mobile at the show 00(1) 86 13922082500

I very much look forward to seeing you - if at all possible

Edis Audio and Installation Accessories are stacked high at distributors right now ready for Summer Installs in schools.

      See our Supplier Wall to find out where to buy them

You can receive alerts for updates of the Edis Blog on twitter now... just follow me on Twitter

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We actively promote the Edis brand and Edis products to buyers, installers, schools, colleges and universities on the internet.

If you sell our products please ensure that you make the Edis brand and product codes visible to gain most benefit - we send several thousand e-mails to buyers and educational users every month promoting Edis and this should bring new business to you.

Be aware that some distributors promote Edis products as if they were OEM products and add their own brand, product names and product codes to information depicting Edis goods on their websites.

You may see Edis products on websites with the brand names of Sahara, Traulux and even Vision - if you are selling Edis products under these names, or others, you will lose the advantage of our promotional activities aimed to increaseyour sales -  these sales are likely to be lost to those who promote the Edis brand and Edis product keywords

If you use the Edis brand name, product codes, descriptions, short names and keywords you will be found by those searching for Edis products on the internet.

If you need any help or support to update your product information please don't hesitate to contact us or If you need Edis Logos and product photographs these are all available on theEdis On-line Photo Gallery(you will need your password confirmed to access the gallery - please email me if you have any difficulties)

The Edis Hi-Res image Gallery is now on-line for those wanting to download Hi-Res pics to support the selling of EdisAV products. You can register on-line which needs verification or you can  apply  here for an ID and password

You can be assured of the suitability, design and quality of Edis products which now exceed more than 70,000 installs in classrooms in the UK alone. Be sure that you buy the real thing - all our audio products have the Edis product code on the back with the CE mark as Edis products are safety tested as well as performance tested with ongoing inspection and improvements by our UK qualified electronics engineers. Even in these desparate times I guess there is no need to remind you of the dangers of installing unproven pirated copies of our designs!

An amazing 70% of visitors to our Supplier Wall are new - a big thank you to all those checking out the 90+ supplier and installer links - you can see the Edis Supplier Wall here

Edis Audio Visual on LinkedIn

Welcome to the return of the Edis Blog! Our site "disappeared" when our ISP moved locations and "lost" our server during the move ..... and then we found problems with our back-ups.... so the rebuild has been really slow. Could be a warning for others to ensure that back-ups or offline versions are really  in a fit state to re-load or repair your site after a catastrophic failure.