Yamaha YHT-450 6.1 Ch Home Theater in a Box System

YAMAHA Updated: 2007-10-10
Yamaha YHT-450 6.1 Ch Home Theater in a Box System

Advanced YST
Advanced Yamaha Active Servo Technology (Advanced YST) is a unique system in which the speaker and amplifier work together to cancel out impedance so the speaker unit has a perfectly linear motion. Advanced YST helps to ensure the highest levels of sound pressure and overall performance.

Conventional multichannel audio reproduction systems base their sound on Dolby Digital and DTS decoding, using matrix and steering technologies to create surround sound effects. Yamaha CINEMA DSP is much more advanced, actually creating richly realized independent sound fields that envelop you in an unmatched surround sound experience. With dialogue, music and effects from ideally located in these separate sound fields, you will hear sound with accurate placement, smooth movement, exceptional clarity and richness, and startlingly realistic presence. It will seem as if the walls of your room have disappeared and you are in the middle of your own immense theater! The decoding circuitry performs Dolby Pro Logic IIx, Dolby Digital, Dolby Digital EX, DTS Digital Surround, DTS-ES (DTS-ES Matrix 6.1 and DTS-ES Discrete 6.1), DTS Neo:6 and DTS 96/24 decoding with extreme accuracy, as well as all digital sound field processing.

Dolby Digital EX
This surround format from Dolby Digital includes an added center rear channel. The rear center channel is actually matrixed into the two rear channels, and is extracted upon playback. (Formerly called Dolby Digital Surround EX, or Dolby Digital Matrix 6.1.)

QD-Bass Technology
QD-Bass (Quatre Dispersion Bass) technology uses down-firing drivers with square, pyramid-shaped reflective plates to radiate the sound efficiently in four horizontal directions. The reflective plates negate any effects caused by the floor surface and reduce resonance between sound waves reflected from the floor and the unit.

SILENT CINEMA makes it possible to hear large-scale surround sound through ordinary headphones! This is a variation of CINEMA DSP technology that Yamaha developed to let you listen in private to movies and other multi-channel sources for hours without listening fatigue. Virtual CINEMA DSP lets you enjoy the effects of CINEMA DSP surround sound without using surround speakers (handy for use in custom installations where some rooms don't have surround speakers). It can be used with the front / center / presence speakers or even with just the two front left and right speakers.

6 Ch Ext Input
6 additional input jacks for discrete multi-channel input. Front (Left, Center, Right), Rear (Surround Left & Right) and Subwoofer

DTS-ES Discrete 6.1
In this format, the back surround channel is matrix encoded into the left and right surround channels. For playback, the three channels are separately decoded.


6.1 Channel A/V Home Theater Receiver (HTR-5740)

* 6.1 Channel A/V Home Theater Receiver
* High Power Discrete Amplification 100W x 6
* DTS-ES Discrete, Dolby Digital EX, Dolby ProLogic IIx Decoding
* Yamaha Original 32-bit Cinema-DSP Processing
* 29 Cinema-DSP Surround Modes
* 192kHz/24-bit DAC
* Component Video Input
* Front Panel A/V Input
* Speaker A-B Output
* 4 Video Inputs
* 2 Component Video Inputs


* Preset Remote Control


Voice Matched Speaker System Package (NS-AP4400)
2 Main Speakers, 3 Surround Speakers, 1 Center Channel Speaker

* 3-Way Bass Reflex Main Speakers
* High Compliance Woofer
* 1" Dome Tweeter
* 55Hz-28 kHz Frequency Range
* Magnetically Shielded Main and Center Speakers
* 2-Way Center and Rear Speakers

Powered Subwoofer (YST-SW015)

* High Power 120W Advanced YST Subwoofer
* Magnetically Shielded for Video Use
* 6-1/2" Driver
* Frequency Response: 30Hz to 200Hz