if the OSD stays on to long... you can either go into the menu as gonk described and lower the timeout time.. or just hit the menu button your remote and it will turn off.

I don't think you can adjust the OSD for the volume.
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Outlaw Audio 990 pre amp
Adire Audio sub (SVS 12.2 driver)
CAL Alpha tube DAC
Parasound P/HP-850 2 CH pre
Pioneer PL-530 TT
Polk Audio SDA 2B
NAD 2600A amp
Danger Boy here