Multichannel power amplifiers

Tips on multi-channel stages for home cinema

When designing and completing a home cinema system , we must consider aspects such as what we need or how far our budget can go. Multi-channel power amplifiers are one of those components that are used in advanced assemblies and that requires a series of knowledge to reap its benefits and ensure optimal use.

In which cases do I need a power stage?

The multichannel power stage is necessary in several cases:

• When the AVR falls “short” : Sometimes the AV receiver limits the power delivery, and for this reason, it is necessary to connect a multichannel power stage. The AVR not being able to properly power the speakers could be because the room is too big and needs more impact, or because the speakers are demanding in terms of specifications.

• When we have an AV preamp which does not have internal amplification, the power stage is mandatory, since it will be in charge of directly feeding the speakers.

• In dedicated movie theaters, the power stage is practically indispensable since it is the only way to reach reference levels without distortion.

Power Amplifier Types

In order to ask ourselves if we really need a multichannel power amplifier, we stop along the way and look at the classification and types of power amplifiers.

• Monophonic stage : The 1 channel or monophonic stages are used to amplify a single channel in the system. They are more expensive solutions and are aimed at enthusiast users and for use in high-end HiFi or cinema installations.

• Stereo stage : It is the type of stage most used in hi-fi systems due to its versatility.

• Multichannel power amplifier : In multichannel power amplifiers, the maximum number of channels are integrated in one together in order to avoid the use of numerous monophonic amplifiers and feed all the channels of a home theater.

Buy a power stage for a home cinema

The best power stages are in Zococity.es. Buy the multi-channel power amp that fits your system and enjoy the most powerful sonic response.

• Marantz MM7055 : The Marantz MM7055 is the 5-channel power amplifier that delivers total balance. Its 140W RMS at 8 Ohms per channel allows it to solidly drive demanding loudspeakers and information collected in formats such as DTS Master Audio or Dolby True HD . This multi-channel power amp has a remote on/off function, and an input panel made up of XLR and DC triggers. It is one of the most recognized stages of the firm.

• Arcam PA720 : This 7-channel x 140W power amplifier with class G amplification is designed to offer the user more flexibility and power without giving up control. It integrates the best components in its class, among which an acoustically damped chassis stands out. Originality and detail are achieved in this power amplifier to obtain an unrivaled level of quality.

• NAD M28 : In NAD's Master range the M28 7-channel multi-channel stage employs Purifi's exclusive Eigentakt™ amplification technology. With a delivery of 200W per channel at 8 Ohms, the result is an exceptional and immersive sound performance , ideal for home theater. Its efficient audio interface provides a high level of signal integrity, free of distortion. The M28 is a hyper powerful stage.