I actually, wrote down the same calibration parameters generated by the 990 auto-setup, I disconnected the 990 and put back the HK525, and calibrated the HK with those parameters. Again the volume level on the HK at -30dB was already loud enough while I needed to set the level on the Outlaw at -19dB to get the same output.
You can't use the same channel trim settings for two different units and get the same output levels. The trim settings will be different for each piece of equipment. To directly compare the two, use an SPL meter to calibrate both units to the same dB level (typically 75dB) with the volume positions at 0dB. To further make it as comparable as possible, you might also use a test disc such as Digital Video Essentials or AVIA for the test tones, although unless the HK's test tones are really odd somehow there shouldn't be a need to take it that far.
The bass level is so low on the 990 with the tone->bass set to +6dB.
I agree with R. Mackey that it would be best to leave the tone controls flat while getting the basic calibration done. Also, check the HK's settings to make sure you don't have some sort of bass boost turned on - a setting like that could
really screw with your perceptions when comparing two units.
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