Sony STR-K750P Operating Instructions - Page 18

Multi channel surround setup (continued) x Surround speaker size ( SL SR XXXXX) • If you connect large speakers that will effectively reproduce bass frequencies, select "LARGE". Normally, select "LARGE". However, if the front speakers are set to "SMALL", you cannot set the surround speakers to "LARGE". • 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 surround channel bass frequencies from the sub woofer or other "LARGE" speakers. • If you do not connect surround speakers, select "NO".*3 Tip *1-*3 correspond to the following Dolby Pro Logic modes *1 NORMAL *2 PHANTOM *3 3 STEREO Tip Internally, 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 sounds have 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 bass, you can use the BASS parameter in the TONE menu to boost the bass levels. To adjust the bass, see page 27. Adjusting the speaker level Use the remote while seated in your listening position to adjust the level of each speaker. Note The receiver incorporates a new test tone with a frequency centered at 800 Hz for easier speaker level adjustment. 1 Press ?/1 on the remote to turn on the receiver. 2 Press TEST TONE on the remote. "T. TONE" appears in the display and you will hear the test tone from each speaker in sequence. Front (left) t Center t Front (right) t Surround (right) t Surround (left) t Sub woofer 3 Adjust the speaker level and balance using the LEVEL menu so that the level of the test tone sounds the same from each speaker. For details on the LEVEL menu, see page 26. While adjusting, the test tone is output from the speaker whose adjustment is performed. 4 Press TEST TONE again to turn off the test tone. Tip You can adjust the level of all speakers at the same time. Press MASTER VOL +/- on the remote or turn MASTER VOLUME on the receiver. Notes • The adjusted value are shown in the display during adjustment. • Although these adjustments can also be made via the front panel using the LEVEL menu (when the test tone is output, the receiver switches to the LEVEL menu automatically), we recommend you follow the procedure described above and adjust the speaker levels from your listening position using the remote. 18GB