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Multi-Channel Amplifier Reviews & "Wiki" Information

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Latest Multi-Channel Amplifier Reviews

NAD Master Series M25 Seven-Channel Amplifier Reviewed

Ask any audiophile about NAD and you are very likely to get a big grin just at the suggestion of the brand. I have called NAD Electronics the "gateway drug" to audiophilia, as their low-priced, no-frills-looking products have the ability......Read More

NAD Electronics T-975 Seven-Channel Amplifier Reviewed

Honestly, I am kinda sick of AV receivers. Yes, they are packed with features and loaded with almighty HDMI inputs, making them look oh-so-good on paper to consumers. Today's HDMI receivers boast sponsorship from just about every surround sound format......Read More

All Multi-Channel Amplifier Reviews

Multi-Channel Amplifier Wiki

1.0 What is a Multi-channel Amp?
2.0 Types of Multi-channel Amps

2.1 Three Channel Amps
2.2 Five Channel Amps
2.3 Seven Channel Amps
2.4 Amps For Distributed Audio Systems

1.0 What is a Multi-Channel Amp?
A multi-channel power amplifier is an amp that has more than one channel of power amplification in the same chassis. Some amps on the high end have dedicated power supplies for each channel. Others share the same power supply, thereby lowering the overall cost of the amplifier.

Multi-channel amplifiers are popular in high-end home theater systems, as well as audiophile-grade music systems playing back audio in 5.1 surround.

2.0 Types of Multi-Channel Amps
There are numerous types of multi-channel amps, including solid state and tube-oriented designs. Increasingly, class D digital amps are made into multi-channel products that are very quiet, run cool and have lots of power compared to more traditional amplifiers.

2.1 Three-Channel Amps
Three-channel amps tend to be more audiophile-oriented, with price tags that are in line with what you would expect to see from an audiophile monoblock or stereo power amplifier. It is not uncommon to see three-channel amplifiers come with separate power supplies to retain the audiophile performance while still keeping all three channels inside of one chassis. Three-channel amps are often used for applications needing power for the three front channels (front left, front right and center), but are by no means limited to those roles.

2.2 Five-Channel Amps
The five-channel amplifier configuration is the most popular for multi-channel amplifiers, as they can accept a five-channel output from an AV preamp and supply power to everything but the often separately-powered "point 1" LFE or subwoofer channel.

2.3 Seven-Channel Amps
Seven-channel amplifiers are increasingly popular for systems that use the latest in surround sound technology, such as Dolby True HD and or DTS Master audio. Not only do the amps provide the dynamic range needed to make a better-than-theater audio experience, the seven channels allow for both side and rear speakers of a 7.1 surround speaker system. The "point 1" speaker goes normally to a powered or active subwoofer.

2.4 Amps For Distributed Audio Systems
Distributed audio systems that pipe music throughout an entire home use multi-channel amps that can have upwards of 24 to 26 channels of amplification. It is also not uncommon to see these amps be card-based, which means they are configurable as needed for each installation.

Heat is a big issue for these distributed audio system amplification systems, so digital amplifier (class D) technology is increasingly used in these amps.



Keywords

Multi-channel amps, 5.1 amps, 6.1 amps, 7.1 amps, Home Theater amps, Amplifiers for home theater

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Latest Multi-Channel Amplifier Reviews

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