Most Pre / Pro's are very low in output. As such, you have to crank the gain WAY up to achieve what may be a normal listening level. I just got an email from someone asking a very similar question. We are currently trying to track down the source of compatability problems via some simple measurements.
As a side note, some Pre / Pro's have adjustable input gain on them. The default may be quite low, providing quite a bit of headroom so that the input stage doesn't saturate. By increasing the input gain, you can raise the volume of the system as a whole, but you also stand to increase distortion. Getting something set up properly is very much walking a fine line in these situations. Sean
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As a side note, some Pre / Pro's have adjustable input gain on them. The default may be quite low, providing quite a bit of headroom so that the input stage doesn't saturate. By increasing the input gain, you can raise the volume of the system as a whole, but you also stand to increase distortion. Getting something set up properly is very much walking a fine line in these situations. Sean
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