Originally Posted by mope54
I have my 105D directly connected in to my amps. I read that as long as the volume is above 80 then there isn't any fidelity loss. My amps are more sensitive than I was expecting, however, and 80 would be a very high upper threshold. If I adjust the trims of all the speakers so that I could turn the volume higher, would that have a different impact on the quality of the sound compared to simply leaving the volume lower?
80 isn't really the threshold, but more like around 50, and even then, if you have it below 50,
the reduction in sound quality will not be dramatic, but very subtle.
Yes you can try adjusting the trim levels downward so that you can have a higher overall volume set in the player,
but again there won't be much (if any) appreciable difference aside from different numbers.
You just want to make sure the trim levels are all equal in volume using some test tones and a SPL meter.
As long as they are evenly matched, you should be ok.
Perhaps just turn all channels down as far as they can go, then adjust them upward as needed for level matching.
You also don't mention if your amps have volume control or not, and if it does, then you will want to use that to allow
the Oppo to be turned up higher. If no volume control on the amp, then just try turning the channel trims down as
discussed above. If it is still too loud, then you won't be able to use that specific amp connected directly from the player.