Radios and stereos have come a long way since the first models of decades ago. Now we tune in to high fidelity units or hi-fis. Hi-fi describes sharp and clean sound delivery with no interruptions and distortion. With time, the term hi-fi was put on undeserving gadgets that did not deliver as they should. Then came digital hi-fis and it became easier to tell the genuine item from the substandard. When it comes to choosing a digital hifi, look out for some of the following features that the best units will have.

Most have wireless control. They will have one or two buttons, mostly for turning it on and off and controlling volume but the other controls will be wireless. They will come in form of software and applications that are downloaded into the hi-fi from a CD. Most can alternatively be controlled through the applications found in Smart Phones and computers.

Digital hi-fis speakers are also different. Though compact, the hi-fi and speakers pack a lot of power. They will also have a number of drivers, some as many as five or six. Each speaker will have its own digital amplifier which delivers clean sound. Thanks to wireless expandability, it is possible to set the speakers such that every room that has a speaker has different music playing from the same hi-fi.

Also, control and configuration will be controlled wirelessly. If the hi-fi is part of a wireless network, you can just plug and play. This is if you use the configuration part of the application to set up network security which makes it possible for your router signal to be picked up.

You can then clearly catch most online radio stations as well as music-dedicated sites like iTunes from which you can stream in music from a computer. Some systems also have panels that accommodate Ethernet LAN ports so that a hi-fi to be connected to a PC or MAC as well other network devices such as network-attached storage or NAS.

Look out also for hi-fis that have the function of multi-room video on component video which can be played to a room or more than room. Some will also have a USB input which enables music to be played on the hi-fi from a Smart Phone or USB memory.

Others have Bluetooth and others still have network player function for streaming of images and music that work with Windows 7. Some will in addition have Dynamic volume controls and room acoustic calibration. You can also find others with stereo inputs for DVDs, cassettes, Phono turntable, and a second spare input for any other analog unit you might want to use.

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