Maintain your old Siemens Hipath system

The Next Revolution in Home Entertainment - IP Based Multi-Room Distribution

The Holy Grail of distributed audio; unlimited zones and unlimited sources, cost effectively. That milestone will be achieved, and soon, through the combination of digital amplification and IP based distribution systems. There are systems available today that use one or both of these technologies, such as Oxmoor's Zon system and Netlinks' Netstreams product line. The trend will only continue to grow.

The beauty of this approach is that digital music is data, and, as such, can be distributed easily via an Ethernet network. The traditional concept of zones virtually disappears, as each amplifier on the network gets a unique IP address, enabling an audio stream to be routed to it. When combined with a digital music server, the number of zones is limited only by the ability of the server to serve independent audio streams.

The advent of cost effective digital amplification, produced by companies such as D2 Audio and Flying Mole, allows a small, highly efficient audio amplifier to be located close to the speakers, either in the room or mounted in an electrical box. The logical evolution of this approach is to collocate amplifier with the speaker, creating an active speaker. Additional benefits are realized by incorporating the speaker as part of the circuit. This enables the designer to engineer the speaker and amplifier circuits for optimum performance as a system.

Low powered designs of this nature could take advantage of power over Ethernet (POE), simplifying system wiring by allowing a single CAT-5 cable to be run from the router to the speaker. This would not supply a large amount of power (about 15 watts) due to the constraints of the 24ga conductors used in CAT-5. However, the efficiencies gained by an integrated speaker / amplifier design would mitigate this concern to some degree. This type of system is sufficient for background music applications in many residential environments.

Higher power systems can use the existing speaker wire, in the case of a conventionally wired system, to carry power. It can / does use the existing control cable, since many systems have been wired with CAT-5 to the volume control location, for the data.

The bandwidth of a traditional 10/100 network allow, for all practical purposes, an unlimited number of zones and sources in a residential environment. Partly because of this, Audio Over Ethernet has been used successfully in the commercial audio and sound reinforcement world for a number of years now. Cobranet, from Cirrus Logic is the most popular commercial AOE system used today. Another popular system is available from Digigram. These systems both use the MAC layer of Ethernet and are not actually using IP for transmission.

For both residential and commercial applications another primary advantage of using Ethernet is the ability to use the medium for transporting both audio and control signals down the same wire. This increases flexibility and reduces cost for both installation and material.

As was true in the commercial world, the distribution of audio (and soon, video) and control via Ethernet will continue to proliferate in residential distributed audio applications. The combination of flexibility, cost effectiveness and capability are to attractive to be ignored.

Steve Faber has almost 15 years in the custom installation industry. He is a CEDIA certified designer and Installer 2 with certifications from both the ISF and THX. His experience spans many facets of the industry, from the trenches as an installer and control systems programmer, and system designer, to a business unit director for a specialty importer of high end audio video equipment, a sales rep for a large, regional consumer electronics distributor, and principal of a $1.5M+ custom installation firm. Steve is currently is senior sales engineer for Digital Cinema Design, a CEDIA member firm in Redmond, WA. He is on the web at

In The News:

Crew seen in first pictures from inside UK-flagged oil tanker seized by Iran
Mon, 22 Jul 2019 10:42:00 +0100
The crew of a British-flagged oil tanker seized by Iran in the Gulf have been pictured inside the vessel for the first time since armed soldiers took control.

Stena Impero: How tensions reached this point and what happens next
Mon, 22 Jul 2019 07:36:00 +0100
Tensions between the UK and Iran show no sign of easing thanks to the latest drama in the Gulf, which saw a British-flagged oil tanker seized by Tehran as it sailed through the Strait of Hormuz.

Iran sentences 'CIA spies' to death after 'breaking ring'
Mon, 22 Jul 2019 07:29:00 +0100
Iran says it has broken up a CIA spying ring and sentenced some of the 17 suspects to death.

India launches rocket to far side of moon - just days after aborted take-off
Mon, 22 Jul 2019 12:41:00 +0100
India's space agency has launched an unmanned spacecraft to the far side of the moon just a week after aborting the mission due to a technical problem.

Masked assailants attack Hong Kong protesters in subway
Sun, 21 Jul 2019 15:37:00 +0100
Clashes in Hong Kong escalated into violence on Sunday as police launched tear gas at pro-democracy protesters and a group of masked assailants attacked people making their way back from the rally in a subway station.

Erfahrungen mit Pallhuber Wein
Agen Bola SBOBET Terpercaya

Travel in comfort and at your leisure with CT Airlink Limousine & Car Service for top quality private transportation and exceptional customer service. We operate Sedans, SUVs & Vans for CT Car Services to covering all Connecticut airports including Car Service from CT to Newark Airport , Mohegan Casino Uncasville CT, Foxwoods Casino Mashantucket CT, Manhattan Cruise Terminal NYC, Brooklyn Cruise Terminal NYC and Bayonne Cruise Terminal NJ. CT Airlink hire licensed and friendly chauffeurs who have in-depth knowledge of the Areas.

Skip Troweling Method for Textured Ceilings

There are several ceiling texture choices to choose from when... Read More

The Motors Best Friend

The starting current of motor can become 3 to 6... Read More

Remodeling Your Kitchen

Remodeling a kitchen is one of the best investments a... Read More

Planning Permission Tips UK - Loft Conversions in UK Properties - Do They Add Value?

We get a great many requests to view the potential... Read More

Employ Passive Solar Energy and Start Saving Electricity Today

1. Orientation, layout and positioning of your house on the... Read More

10 Tips for Working With a Contractor

This is the year you're going all out. You're going... Read More

Removing Your Old Wood Double Hung Windows

Last week I told you how to measure your wood... Read More

Modern Rugs

The modern look is a highly admired form of interior... Read More

Get New Floors And Save A Bundle When You Do It Yourself

After years of use, your floor will need to be... Read More

Lakeside Patios ? The Water Makes Decisions For You

If you are putting in a new patio on a... Read More

Warm & Toasty Outdoors with Patio Heaters

The Heat is On with... Read More

Grandfather Clocks Bring a Sense of Awe?Theyre So Tall

Standing tall and big are the stately grandfather clocks. They... Read More

Building Permits and Inspections

Probably the most intimidating part of building your own house... Read More

Buying the Right Garage Door Opener

If you have recently built a new garage you might... Read More

A Checklist for Bathroom Remodeling Plans

Careful planning is the key to a successful bathroom-remodeling project.... Read More

Help Choosing Door and Window Hardware

Who would be the best person to help you find... Read More

Refrigerators Electric Consumption - Lower It In 15 Minutes

I recently had a customer ask for my advise about... Read More

Get Everything Done Quickly Using Your Basic Tools

No one wants to have their house equipment broken. But... Read More

Non Slip Maintenance Of Honed Interior Marble

A honed finish is a satin surface with relatively little... Read More

Get Your Home Ready To Sell

Have you been considering selling your home in the near... Read More

Seven Essential Color Concepts for Designing Spaces

Understanding a few essential color concepts will help you design... Read More

Replacement or Retrofit Style Frame? Which is Right for You?

Last week I told you how to measure for your... Read More

The Four Major Types of Air Filters

Hygienic air is essential to human life, and in this... Read More

Add A Room To Your Home With A Patio Awning

Do you need a patio awning for your lovely patio... Read More

Different Materials Used for Roofing and Determining the Cost of Each One

There is never a structure you will find that lacks... Read More