I recently purchased a denon 5308ci that is supposed to have the $1000 dynamic volume, 3d pass-thru upgrade. My question is how can I tell if it really has this upgrade?
Pretty well every manufacturer incorporates some form of the "dynamic volume" feature your Denon should have which is designed for the purpose of evening out the low and high frequencies when listening at moderate to low volume levels. When on, while listening at low levels in particular, it will be slightly louder. Once you boost the volume level up, it will have no affect whatsoever. If it was an update, it should show up in the menu somewhere and you should be able to turn it on and off.
If you can't find it, then I would suggest go in to the Denon website under the "support" area and see what the latest firmware update is and see if your AVR shows that it contains that your unit has the most recent update.
