Denon AVR-485S Operating Instructions Manual

Also see for DHT-485DV: Operating instructions Datasheet Quick connect guide

57Surround back speakersA 6.1-channel system is a conventional 5.1-channel system to which the “surround back” (SB) channel has been added. This makes it easy toachieve sound positioned directly behind the listener, something that was previously difficult with sources designed for conventional multisurround speakers. In addition, the acoustic image extending between the sides and the rear is narrowed, thus greatly improving the expressionof the surround signals for sounds moving from the sides to the back and from the front to the point directly behind the listening position.FL CSW FR FL CSW FRSR chSL chSL ch SR chSB chChange of positioning and acoustic imagewith 5.1-channel systemsWith this set, speaker(s) for 1 or 2 channels are required to achieve a 6.1-channel system (DTS-ES, etc.). Adding these speakers, however,increases the surround effect not only with sources recorded in 6.1 channels but also with conventional 2- to 5.1-channel sources. All the Denonoriginal surround modes (see page 47) are compatible with 6.1-channel playback, so you can enjoy 6.1-channel sound with any signal source.Movement of acoustic image from SR to SLChange of positioning and acoustic imagewith 6.1-channel systemsMovement of acoustic image from SR to SB to SL2 Placement of the surround left and right channels when using surround back speakersUsing surround back speakers greatly improves the positioning of the sound at the rear. Because of this, the surround left and right channelsplay an important role in achieving a smooth transition of the acoustic image from the front to the back. As shown on the diagram above, in amovie theater the surround signals are also produced from diagonally in front of the listeners, creating an acoustic image as if the sound werefloating in space.To achieve these effects, we recommend placing the speakers for the surround left and right channels slightly more towards the front thanwith conventional surround systems. Doing so sometimes increases the surround effect when playing conventional 5.1-channel sources in the6.1 surround or DTS-ES Matrix 6.1 mode. Check the surround effects of the various modes before selecting the surround mode.ENGLISH