What does surround sound
give me?UK spec
What is it?
How do I get it? -
and
What is an AV Receiver?
What's Surround Sound?
It's a system set up that allows you to hear sounds coming from all directions, giving a more realistic effect.
You need a component to decode and reproduce from a source, such as a DVD. Usually, this is called an AV Receiver (Audio/Video Receiver)or Home Cinema Receiver.
What's an AV Receiver?
An AV Receiver often combines three components:
1. A radio tuner for AM/FM and, in some cases, HD (High Definition Radio) or XM-Satellite Radio.
2. A Preamplifier that switches and controls which audio and video source is selected (such as a DVD player, VCR,
CD player, etc...) and processes the incoming stereo or surround sound signals and distributes them to the correct
amplifier channels and the subwoofer output. The preamp in an AV receiver can also route video signals coming from
source components (such as a DVD player) and direct the video signal to the television.
3. A built-in Multi-channel amplifier (5.1, 6.1, or 7.1 channels) that sends the sound signals and power to the
speaker system.
AV Receiver or Separate Components?
Do you get an AV receiver or separate components?
The AV receiver is the heart of a home cinema system and provides most, if not all, the inputs and outputs that you
connect everything (including your television) into. An AV Receiver provides an easy and cost-effective way of
centralising your your home theater system.
In many high-end installations, the functions of an AV Receiver are often provided by separate components: Preamp/Processor, Tuner, and either a single multi-channel
amplifier
or even separate amplifiers for each channel.
That kind of setup provides more flexibility in switching out and/or upgrading the separate aspects of the system as well as
isolating any interference that is caused by having all these functions combined in a signal chassis and sharing the
same power supply.
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