[TenTec] question about updates

[Steven Moore]

Are the old versions from ten tec forever lost when you update? Can you reinstall say the first version that 
came with an orion 1 on an orion 2. This may seem a dumb question but I'm not computer savvy.

Also I have read that the only version with acceptable audio transmit width for ssb with any fidelity is the 
original orion with the first firmware - true ?
    If all I can get with an orion 2 is firmware with severe rolloff at 200Hz - and nothing you can do about 
it - then I know I don't want an orion 2.

73
Steve  wd0ct