User manual SONY STR-DA1200ES

[. . . ] To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. To prevent fire, do not cover the ventilation of the apparatus with news papers, table-cloths, curtains, etc. and don't place lighted candles on the apparatus. To prevent fire or shock hazard, do not place objects filled with liquids, such as vases, on the apparatus. [. . . ] When the front speakers are set to "SMALL, " the center, surround, and Surround back speakers are also automatically set to "SMALL" (unless previously set to "NO"). LARGE If you connect a large speaker that will effectively reproduce bass frequencies, select "LARGE. " However, if the front speakers are set to "SMALL, " you cannot set the center speaker to "LARGE. " · SMALL If the sound is distorted, or you feel a lack of surround effects when using multi-channel surround sound, select "SMALL" to activate the bass redirection circuitry and output the center channel bass frequencies from the front speakers (if set to "LARGE") or sub woofer. ⷠNO If you have not connected a center speaker, select "NO, " the sound of the center channel will be output from the front speakers. ⷠMIX We recommend you set "CENTER SP" to "MIX" to enjoy digital audio with high quality sound when you do not have a center speaker connected. Analog downmix works when you set "CENTER SP" to "MIX. The bass redirection circuitry and output the surround channel bass frequencies from the sub woofer or other "LARGE" speakers. ⷠNO If you have not connected surround speakers, select "NO. When the surround speakers are set to "NO, " the surround back speakers are also automatically set to "NO" and the setting cannot be changed. ⷠDUAL If you connect two surround back speakers, select "DUAL. SINGLE If you connect only one surround back speaker, select "SINGLE. NO If you have not connected surround back speakers, select "NO. " · BI-AMP If you connect front speakers in a biamplifier configuration, select "BI-AMP. The "LARGE" and "SMALL" settings for each speaker determine whether the internal sound processor will cut the bass signal from that channel. When the bass is cut from a channel, the bass redirection circuitry sends the corresponding bass frequencies to the sub woofer or other "LARGE" speakers. However, since bass sound has a certain amount of directionality, it is best not to cut them, if possible. Therefore, even when using small speakers, you can set them to "LARGE" if you want to output the bass frequencies from that speaker. On the other hand, if you are using a large speaker, but prefer not to have bass frequencies output from that speaker, set it to "SMALL. " If the overall sound level is lower than you prefer, set all speakers to "LARGE. " If there is not enough LARGE If you connect large speakers that will effectively reproduce bass frequencies, select "LARGE. " However, if the front speakers are set to "SMALL, " you cannot set the surround speakers to "LARGE. [. . . ] ⷠContact the radio station and find out whether or not they actually provide the service in question. If so, the service may be temporarily out of order. If you connect the receiver to an outdoor antenna (aerial), ground it against lightning. To prevent a gas explosion, do not connect the ground (earth) wire to a gas pipe. [. . . ]