Setting initial audio level

I posted this in Unix forum - perhaps this is a better place.
I wish to reduce the startup default sound level on my MBP
I just tried
nvram SystemAudioVolume=$80
as a test and got the following error
nvram: Error setting variable - 'SystemAudioVolume': (iokit/common) general error
Is there a way to change this default level? It's way too loud for me and I have to reduce it each time I reboot before accessing anything that has audio content or it blasts my ears.
Thanks

Keith Barkley wrote:
This may not be sticky. I have not yet figured it completely out, but the SUV seems to depend on the volume of the last user as he logs out. (at least on my wife's iBook)
It works that way with Tiger, but not with the latest version of Snow Leopard, or so it seems.
Message was edited by: nerowolfe
Message was edited by: nerowolfe

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OS: Windows XP Professional Service Pack 3-Build Lab: 2600.xpsp_sp3_gdr.080814-1236
Audio driver: SoundMAX Integrated Digital HD Audio - Analog Devices - Driver date: 08/02/2008, Driver version: 5.10.1.5520
The audio level output is too low, even if setting the output for all sources to the maximum level.
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Need your help to see how to correct this and return to a normal operation!
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Additional informations:
Tested with the audio driver found at Lenovo's website, without any success.
After this was done, the audio driver was updated also without success too.

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Setting initial audio level

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