Surround Sound

Maybe you're using a great home stereo system, but even with a large-screen HDTV and buttered popcorn, you might not achieve the "movie theater" effect. That's because sound systems in movie theaters use surround sound technology. And without that, you're just watching plain old TV.

Technologies Driving the Evolution of Surround Sound

To create dimensions with surround sound, audio is split into multiple channels so that different information can be supplied to different speakers. Information for these channels may be found on a soundtrack or created by processing in an audio receiver.

The number of full range channels is indicated by the first digit in figures like "5.1" or "7.1". The ".1" refers to the Low Frequency Effects channel. A 5.1 orientation is supported by audio technologies like Dolby Digital and Dolby Pro Logic II – formats found on most DVDs and Blu-ray discs – and you may occasionally find formats supporting a 6.1 orientation. Recently, new technologies such as Dolby Pro Logic IIz and Audyssey DSX have further expanded surround sound to seven or more channels.

Ultimately, the orientation you choose will depend on your listening preferences. So, while a 5.1 receiver will give you actual surround sound, if you have space for more speakers and are willing to spend more for a more realistic soundstage, you might want a 7.1 or 7.2 receiver.

Enjoy True Surround Sound with an All-in-One System

For those who want to enjoy true surround sound at home, Denon has created the DHT-1513BA Home Theater System. It comes with our AVR-1513 3D Pass-Through 5.1 Channel Receiver and a premium surround sound speaker system from Boston Acoustics. The discrete circuitry of the receiver enables the faithful reproduction of surround sound while built-in audio technologies from Audyssey optimize your system's sound quality and performance. It is also equipped with an array of decoders including Dolby TrueHD and DTS-HD Master Audio.

Home Theater Receivers for the Audiophile in All of Us

Realizing that 7.1 surround sound is fast becoming the studio and home theater standard, Denon has developed two excellent home theater receivers that allow you to recreate the cinematic audio experience at home. The AVR-1913 7.1 3D Pass-Through Networking Home Theater Receiver with AirPlay comes equipped with a built-in upscaler for HD and all the surround sound decoders found in the AVR-1513 plus Dolby Digital Surround EX and Dolby Pro Logic IIz. With powered zone-2 capability, you have the option of reassigning power amps to use the additional channels for audio in another room.

Our AVR-3313CI 7.2 4K & 3D Pass-Through Home Theater Receiver gives you an additional subwoofer output for optimal bass performance, more watts per channel for even more dynamic surround sound, an advanced 4K upscaler, Audyssey DSX technology, three-source, three-zone capability, and a whole lot more.

Learn more about the Denon DHT-1513BA Home Theater System.

Learn more about the Denon AVR-1913 Home Theater Receiver.

Learn more about the Denon AVR-3313CI Home Theater Receiver.

Find out where you can purchase Denon surround sound systems and receivers.