3. HDMI AUDIOThis menu is used to check the route of audio signal input to HDMI IN/OUT.* Before check using “3-3. DSD” menu, be sure to connect a CD player equipped with Direct Stream Digital outputto this unit in advance.* Before check using “3-4. ARC” menu, be sure to connect a TV monitor equipped with Audio Return Channelfunction to this unit in advance.3-1. SPDIFSPDIF signal is output.3-2. Multi (DVD-Audio)Multi signal is output.3-3. DSD (Direct stream digital)DSD signal is output.3-4. ARC (Audio return channel)The audio signal input from HDMI OUT is output.4. SPEAKER SETThis menu is used to check the speaker output.The analog switch settings for each sub-menu are as shown in the table below.LARGE: This mode is used for a speaker with high bass reproduction performance (a large unit). Full bandwidthsignals are output.SMALL: This mode is used for a speaker with low bass reproduction performance (a small unit).The signals of 90 Hz or less are mixed into the channel specified by LFE/BASS.NONE: This mode is used for no center speaker.The center content is reduced by 3 dB and distributed to FRONT L/R.SWFR: LFE of 5.1 channel signal or LFE/BASS lower than 90 Hz is output through SUBWOOFER OUT.FRONT: LFE of 5.1 channel signal or LFE/BASS lower than 90 Hz is distributed to FRONT L/R.FRONT CENTER SURROUND SUBWOOFERFRONT : SML 0dB SMALL LARGE LARGE SWFRCENTER : NONE LARGE NONE LARGE SWFRLFE/B : FRONT LARGE SMALL SMALL FRONTTONE : MAX LARGE LARGE LARGE SWFRTONE : MIN LARGE LARGE LARGE SWFRSPEAKER 6-ohms LARGE LARGE LARGE SWFR33HTR-2064/NS-B20/NS-C20/NS-SWP20HTR-2064/NS-B20/NS-C20/NS-SWP20